{"product_id":"xo-55-manual-lightweight-sit-to-stand-wheelchair-by-karman-healthcare","title":"XO-55 Manual Lightweight Sit to Stand Wheelchair by Karman Healthcare","description":"\u003cbody\u003e\n\n\n  \u003cmeta charset=\"UTF-8\"\u003e\n  \u003cmeta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\"\u003e\n  \u003ctitle\u003eKarman XO-55 Horizon Manual Sit-to-Stand Wheelchair | No Battery | Gas-Spring | 55 lb | 250 lb | Medical Department Store\u003c\/title\u003e\n\n\n\n\u003cstyle\u003e\n.mds * { box-sizing: border-box; }\n.mds { font-family: inherit; color: #1a1a1a; line-height: 1.7; width: 100%; }\n.mds-intro { background: #f7f7f7; border-left: 4px solid #222; padding: 18px 22px; margin: 0 0 24px; font-size: 0.95rem; }\n.mds h2.mds-section { font-size: 0.75rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; border-bottom: 2px solid #222; padding-bottom: 7px; margin: 36px 0 16px; }\n.mds h3.mds-sub { font-size: 0.96rem; font-weight: 700; margin: 20px 0 6px; }\n.mds p { margin: 0 0 12px; font-size: 0.95rem; }\n.mds ul { padding-left: 18px; margin: 0 0 14px; }\n.mds li { margin-bottom: 6px; font-size: 0.95rem; }\n.mds-features { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 12px; margin: 0 0 24px; }\n.mds-feature { background: #f7f7f7; padding: 14px 16px; font-size: 0.9rem; line-height: 1.5; }\n.mds-feature strong { display: block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 4px; color: #2954a3; }\n.mds-specs { width: 100%; border-collapse: collapse; margin: 0 0 20px; font-size: 0.91rem; }\n.mds-specs thead tr { background: #2954a3; color: #fff; }\n.mds-specs thead td { padding: 9px 8px; font-weight: 700; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.04em; }\n.mds-specs tbody tr { border-bottom: 1px solid #eee; }\n.mds-specs tbody tr:last-child { border-bottom: none; }\n.mds-specs tbody tr:nth-child(even) { background: #f9f9f9; }\n.mds-specs td { padding: 9px 8px; vertical-align: top; }\n.mds-specs td:first-child { font-weight: 600; font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.03em; color: #666; width: 38%; }\n.mds-blog-link { background: #f5f8fc; border: 1px solid #dce8f5; border-left: 4px solid #2954a3; padding: 14px 18px; margin: 28px 0 20px; font-size: 0.93rem; border-radius: 0 4px 4px 0; }\n.mds-blog-link strong { display: block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: #2954a3; margin-bottom: 4px; }\n.mds-blog-link a { color: #1a1a1a; font-weight: 700; text-decoration: underline; }\n.mds-faq { margin: 0 0 20px; }\n.mds-faq-item { border-bottom: 1px solid #e0e0e0; padding: 15px 0; }\n.mds-faq-item p { margin: 6px 0 0; color: #444; font-size: 0.93rem; line-height: 1.75; }\n.mds-faq-q { font-size: 0.93rem; font-weight: 700; }\n.mds-compare { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 10px; margin: 14px 0 20px; }\n.mds-compare-card { border: 1px solid #ddd; padding: 13px 14px; font-size: 0.86rem; line-height: 1.6; }\n.mds-compare-card strong { display: block; font-size: 0.9rem; margin-bottom: 4px; }\n.mds-compare-card a { color: #1a1a1a; text-decoration: underline; font-size: 0.83rem; font-weight: 700; }\n.mds-compare-card .mds-tag { display: inline-block; font-size: 0.73rem; font-weight: 700; letter-spacing: 0.06em; text-transform: uppercase; color: #666; margin-bottom: 3px; }\n.mds-tip { background: #fffbea; border-left: 4px solid #f5a623; padding: 13px 16px; margin: 0 0 20px; font-size: 0.92rem; }\n.mds-tip strong { color: #b36e00; }\n\u003c\/style\u003e\n\n\u003c!-- SEO META --\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c!--\nPAGE TITLE: Karman XO-55 Horizon Manual Sit-to-Stand Wheelchair | No Battery | Gas-Spring | 55 lb | 250 lb\nMETA DESCRIPTION: Karman XO-55 Horizon — fully manual sit-to-stand wheelchair, no battery or motor, gas-spring assisted standing in as little as 10 seconds. 6061 T-6 aluminum, 55 lbs, 250 lb capacity, 16\"\/18\" seat, rear strut bar, Kenda pneumatic tires, chest harness\/pelvic belt\/knee strap standard. 3-year frame warranty.\nURL SLUG: \/products\/karman-xo-55-horizon-manual-sit-to-stand-wheelchair\nKEYWORDS (comma format): Karman XO-55, XO-55 Horizon, manual standing wheelchair, sit to stand wheelchair no battery, Karman Healthcare XO-55, gas spring standing wheelchair, XO-55 55 lb, XO-55 250 lb, XO-55 rear strut bar, XO-55 Kenda tires, XO-55 vs XO-101, manual sit to stand wheelchair, lightweight standing wheelchair\n--\u003e\n\n\u003cdiv class=\"mds\"\u003e\n\n\u003c!-- INTRO --\u003e\n\u003cdiv class=\"mds-intro\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eKarman XO-55 Horizon Manual Sit-to-Stand Wheelchair\u003c\/strong\u003e is a fully manual standing wheelchair — no battery, no motor, no electrical components of any kind. A gas-spring assisted standing system and an easy-to-use standing handle allow the user to transition from seated to standing in as little as 10 seconds, powered entirely by the user's own effort and the gas-spring mechanism. A 6061 T-6 aircraft-grade aluminum frame keeps total weight to just 55 lbs (41 lb frame weight alone) while supporting users up to 250 lbs. \u003cstrong\u003eChest harness, pelvic seatbelt, and knee strap standard. Rear strut bar for stability during standing. 16-spoke quick-release Kenda pneumatic rear wheels. Available in 16\" or 18\" seat width and 18\"–20\" seat depth. 3-year frame warranty. Authorized Karman Healthcare dealer.\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c!-- KEY FEATURES --\u003e\n\u003ch2 class=\"mds-section\"\u003eWhat Defines This Chair\u003c\/h2\u003e\n\u003cdiv class=\"mds-features\"\u003e\n\n\u003cdiv class=\"mds-feature\"\u003e\n\u003cstrong\u003eFully Manual — No Battery, No Motor\u003c\/strong\u003e\nThe XO-55 Horizon is the only standing wheelchair in the Karman lineup that operates without any electrical components. The gas-spring assisted standing mechanism uses the user's own effort — assisted by the gas-spring's stored energy — to transition from seated to standing without a motor, controller, or rechargeable battery. This means no charging, no battery maintenance, no electrical failure risk, and a significantly lower price point than powered standing wheelchairs like the XO-101. It is the appropriate choice for users who have the upper body strength to initiate and control the standing transition themselves.\u003c\/div\u003e\n\n\u003cdiv class=\"mds-feature\"\u003e\n\u003cstrong\u003eGas-Spring Assisted Standing in ~10 Seconds\u003c\/strong\u003e\nThe standing mechanism uses high-strength gas-spring struts (inspired by the XO-101 and XO-202 power standing series) that store energy when the user is seated and assist the transition to standing when the standing handle is activated. The transition takes as little as 10 seconds and can be performed independently. Chest harness, pelvic seatbelt, and knee strap — all included standard — provide the support and alignment needed to safely control the standing transition without caregiver assistance for qualified users.\u003c\/div\u003e\n\n\u003cdiv class=\"mds-feature\"\u003e\n\u003cstrong\u003e55 lb Lightweight 6061 T-6 Aluminum Frame\u003c\/strong\u003e\nThe XO-55's frame is built from 6061 T-6 aircraft-grade aluminum — the same alloy used in aerospace structures for its exceptional strength-to-weight ratio. The frame alone weighs 41 lbs; with wheels attached, total weight is approximately 55 lbs. For a standing wheelchair — a category that typically involves heavier construction due to the additional mechanical components required — 55 lbs is exceptionally light, making the XO-55 practical for transport in a vehicle and maneuverable without a large, heavy footprint.\u003c\/div\u003e\n\n\u003cdiv class=\"mds-feature\"\u003e\n\u003cstrong\u003eRear Strut Bar — Stability \u0026amp; Propulsion\u003c\/strong\u003e\nThe XO-55 features a prominent rear strut bar that serves two functions: stabilizing the frame during the standing transition and distributing the physical force more efficiently during manual propulsion when seated. This rear strut bar design is drawn directly from Karman's power standing wheelchair engineering and is what distinguishes the XO-55's structural stability from simpler manual wheelchair conversions. The adjusted camber and toe on the rear wheels further improve propulsion efficiency and tracking.\u003c\/div\u003e\n\n\u003cdiv class=\"mds-feature\"\u003e\n\u003cstrong\u003e16-Spoke Kenda Pneumatic Tires\u003c\/strong\u003e\nThe XO-55's 24\"×1\" high-profile pneumatic rear tires use Kenda-brand inner tubes in a sporty 16-spoke wheel configuration. Pneumatic (air-filled) tires absorb surface vibration more effectively than solid or foam-filled tires — providing a more comfortable ride on imperfect indoor floors, sidewalks, and light outdoor surfaces. The quick-release rear wheels detach without tools for compact storage and vehicle loading. 6\" poly foam flat-free casters in front require no inflation maintenance.\u003c\/div\u003e\n\n\u003cdiv class=\"mds-feature\"\u003e\n\u003cstrong\u003eFull Safety Restraint System Standard\u003c\/strong\u003e\nUnlike many wheelchair accessories that are sold separately, the XO-55 includes a complete safety restraint system as standard: chest harness, pelvic seatbelt, and knee strap. All three are required for safe use of the standing function — they maintain proper body alignment during the seated-to-standing transition and prevent the user from sliding or tilting during standing. Flip-back padded armrests, flip-up footplates, and scissor-style wheel locks complete the standard safety package.\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cdiv class=\"mds-tip\"\u003e\n\u003cstrong\u003eXO-55 vs. XO-101 — the core decision.\u003c\/strong\u003e The XO-55 is fully manual (gas-spring + user effort) with no battery or motor. The XO-101 is battery-powered with a Lloyd high-powered controller that motorizes the standing transition at the push of a button. The XO-55 is appropriate for users who have sufficient upper body strength and ability to initiate the standing transition manually. The XO-101 is appropriate for users who need motorized assistance for the standing transition. Both support 250 lbs and weigh approximately 55–56 lbs. The XO-55 has a significantly lower price point and requires no charging or battery maintenance. If you are unsure which is appropriate for your situation, consult your physician or physical therapist before ordering.\u003c\/div\u003e\n\n\u003c!-- SPECS --\u003e\n\u003ch2 class=\"mds-section\"\u003eFull Specifications\u003c\/h2\u003e\n\u003ctable class=\"mds-specs\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eModel\u003c\/td\u003e\n\u003ctd\u003eKarman XO-55 Horizon\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanding Mechanism\u003c\/td\u003e\n\u003ctd\u003eManual — gas-spring assisted; no battery, no motor, no electrical components\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStanding Time\u003c\/td\u003e\n\u003ctd\u003eAs little as 10 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Material\u003c\/td\u003e\n\u003ctd\u003e6061 T-6 aircraft-grade aluminum — white powder-coat finish\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrame Weight\u003c\/td\u003e\n\u003ctd\u003e41 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTotal Weight (with wheels)\u003c\/td\u003e\n\u003ctd\u003e~55 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight Capacity\u003c\/td\u003e\n\u003ctd\u003e250 lbs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat Width Options\u003c\/td\u003e\n\u003ctd\u003e16\" or 18\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat Depth Options\u003c\/td\u003e\n\u003ctd\u003e18\", 19\", or 20\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeat Height\u003c\/td\u003e\n\u003ctd\u003e21\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBack Height\u003c\/td\u003e\n\u003ctd\u003e11\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArmrest Height\u003c\/td\u003e\n\u003ctd\u003e8\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Height\u003c\/td\u003e\n\u003ctd\u003e32\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Width\u003c\/td\u003e\n\u003ctd\u003e29\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverall Length\u003c\/td\u003e\n\u003ctd\u003e40\"\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRear Wheels\u003c\/td\u003e\n\u003ctd\u003e24\" × 1\" high-profile pneumatic — 16-spoke Kenda tires; quick-release\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFront Casters\u003c\/td\u003e\n\u003ctd\u003e6\" × 1¼\" poly foam flat-free — quick-release caster forks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWheel Locks\u003c\/td\u003e\n\u003ctd\u003eScissor-style\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eArmrests\u003c\/td\u003e\n\u003ctd\u003ePadded flip-back — curved frame for easier transfers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFootplates\u003c\/td\u003e\n\u003ctd\u003eFlip-up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUpholstery\u003c\/td\u003e\n\u003ctd\u003eBreathable nylon sling — seat and back\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSide Panels\u003c\/td\u003e\n\u003ctd\u003eLightweight transparent composite\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety Restraints (included)\u003c\/td\u003e\n\u003ctd\u003eChest harness, pelvic seatbelt, knee strap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStructural Features\u003c\/td\u003e\n\u003ctd\u003eRear strut bar; high-strength gas-spring struts; adjusted camber and toe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBattery \/ Motor\u003c\/td\u003e\n\u003ctd\u003eNone — fully mechanical\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty — Frame\u003c\/td\u003e\n\u003ctd\u003e3 years\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWarranty — Electrical\/Motor\/Transaxle\u003c\/td\u003e\n\u003ctd\u003eN\/A (no electrical components)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003c!-- SIZE GUIDE --\u003e\n\u003ch2 class=\"mds-section\"\u003eSeat Size Guide\u003c\/h2\u003e\n\u003ctable class=\"mds-specs\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003eConfiguration\u003c\/td\u003e\n\u003ctd\u003eSeat Width\u003c\/td\u003e\n\u003ctd\u003eSeat Depth\u003c\/td\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNarrow \/ Standard\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e16\"\u003c\/td\u003e\n\u003ctd\u003e18\", 19\", or 20\"\u003c\/td\u003e\n\u003ctd\u003eSlimmer build; narrower hip width; easier indoor maneuvering in tight spaces\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard \/ Wide\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e18\"\u003c\/td\u003e\n\u003ctd\u003e18\", 19\", or 20\"\u003c\/td\u003e\n\u003ctd\u003eAverage to larger hip width; more seat comfort for longer use periods\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eSeat depth selection affects leg support — measure from the back of the buttocks to the back of the knee when seated. The seat depth should allow approximately 2\"–3\" of clearance between the front of the seat and the back of the knee. Contact us to confirm the right seat combination before ordering.\u003c\/p\u003e\n\n\u003c!-- WHY STAND --\u003e\n\u003ch2 class=\"mds-section\"\u003eWhy Standing Matters — Clinical Benefits\u003c\/h2\u003e\n\n\u003ch3 class=\"mds-sub\"\u003ePressure Relief\u003c\/h3\u003e\n\u003cp\u003eExtended periods in a seated wheelchair position create sustained pressure at the ischial tuberosities, sacrum, and coccyx — the primary pressure injury risk areas for wheelchair users. The XO-55 allows users to stand and fully offload these pressure points during the day, reducing pressure injury risk without requiring a caregiver to perform positional changes. Regular standing cycles are a recognized component of pressure management protocols for wheelchair users.\u003c\/p\u003e\n\n\u003ch3 class=\"mds-sub\"\u003eCirculation\u003c\/h3\u003e\n\u003cp\u003eProlonged seated posture impedes venous return from the lower extremities — blood pools in the legs and feet rather than circulating back to the heart efficiently. Standing posture activates lower extremity muscles, promotes venous return, and can reduce edema in users who experience foot and ankle swelling from prolonged sitting. Users with cardiovascular or circulatory conditions that are exacerbated by prolonged immobility may benefit particularly from regular standing transitions.\u003c\/p\u003e\n\n\u003ch3 class=\"mds-sub\"\u003eBone Density \u0026amp; Musculoskeletal Health\u003c\/h3\u003e\n\u003cp\u003eWeight-bearing through the legs and hips — the mechanical loading that occurs during standing — is essential for maintaining bone density. Users who cannot stand independently experience accelerated bone density loss in the lower extremities over time. The XO-55 enables weight-bearing standing even for users who cannot stand without the chair's structural support, providing the mechanical stimulus that the bones require. Regular standing also maintains range of motion in the hips, knees, and ankles and can help prevent contractures.\u003c\/p\u003e\n\n\u003ch3 class=\"mds-sub\"\u003eDigestion \u0026amp; Respiration\u003c\/h3\u003e\n\u003cp\u003eUpright standing posture improves abdominal organ alignment and can improve digestive function and bowel regularity compared to prolonged seated posture. Respiratory function also improves in the standing position — the diaphragm is less compressed, lung expansion is greater, and tidal volume increases. For users with respiratory challenges related to their underlying condition, daily standing may contribute to better respiratory outcomes.\u003c\/p\u003e\n\n\u003ch3 class=\"mds-sub\"\u003ePsychological \u0026amp; Social Independence\u003c\/h3\u003e\n\u003cp\u003eThe ability to stand and reach eye level with standing individuals — in a conversation, at a counter, in a social setting — has well-documented psychological and quality-of-life benefits. Standing wheelchair users report improved confidence, greater social participation, and a greater sense of independence. The XO-55 provides this capability at a significantly lower price point than powered standing wheelchairs, making standing accessibility available to a broader range of users.\u003c\/p\u003e\n\n\u003c!-- MANUAL VS POWER --\u003e\n\u003ch2 class=\"mds-section\"\u003eManual vs. Power Standing — Is the XO-55 Right for You?\u003c\/h2\u003e\n\u003cp\u003eThe XO-55 is appropriate for users who can:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIndependently reach and operate the standing handle while seated\u003c\/li\u003e\n\u003cli\u003eContribute some physical effort to the standing transition (the gas-spring assists but does not do all the work)\u003c\/li\u003e\n\u003cli\u003eTolerate the approximately 10-second transition time without needing to stop or rest mid-transition\u003c\/li\u003e\n\u003cli\u003eSafely maintain the standing position once achieved, with support from the chest harness, pelvic belt, and knee strap\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe XO-55 may not be appropriate for users who:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eNeed the standing transition to be motorized (consider the XO-101)\u003c\/li\u003e\n\u003cli\u003eHave very limited upper extremity function that prevents reaching and using the standing handle\u003c\/li\u003e\n\u003cli\u003eRequire powered mobility for propulsion in addition to powered standing (consider the XO-505)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eConsult your physician or physical therapist before ordering to confirm that a manual standing wheelchair is appropriate for your individual mobility, strength, and medical profile.\u003c\/p\u003e\n\n\u003c!-- FAQ --\u003e\n\u003ch2 class=\"mds-section\"\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cdiv class=\"mds-faq\"\u003e\n\n\u003cdiv class=\"mds-faq-item\"\u003e\n\u003cdiv class=\"mds-faq-q\"\u003eDoes the XO-55 need to be charged?\u003c\/div\u003e\n\u003cp\u003eNo — the XO-55 Horizon has no battery and no electrical components of any kind. The standing mechanism is fully mechanical, using gas-spring struts and user-applied force through the standing handle. There is nothing to charge, no battery to maintain or replace, and no electrical failure risk. This is one of the XO-55's primary advantages over the battery-powered XO-101.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"mds-faq-item\"\u003e\n\u003cdiv class=\"mds-faq-q\"\u003eHow does the gas-spring standing mechanism work?\u003c\/div\u003e\n\u003cp\u003eThe XO-55's standing mechanism uses high-strength gas-spring struts — similar in principle to the springs that hold a car hood open — positioned at the key pivot points in the frame. When the user activates the standing handle, the gas springs provide resistance-assisted force that reduces the physical effort required to raise the frame to the standing position. The user still contributes physical effort; the gas spring reduces the peak force required. Once standing, the frame locks into the standing position until the user manually initiates the return to seated.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"mds-faq-item\"\u003e\n\u003cdiv class=\"mds-faq-q\"\u003eWhat is the rear strut bar and why does it matter?\u003c\/div\u003e\n\u003cp\u003eThe rear strut bar is a structural cross-member at the rear of the frame that Karman specifically engineered for the XO-55, drawing from the power standing wheelchair series. It serves two purposes: it stabilizes the frame during the standing transition (preventing flex or wobble as the frame pivots between seated and standing positions) and distributes the propulsion force more efficiently when the user is pushing the wheels while seated. Without the rear strut bar, manual propulsion in a standing wheelchair frame would create more lateral flex in the structure.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"mds-faq-item\"\u003e\n\u003cdiv class=\"mds-faq-q\"\u003eCan I use the XO-55 outdoors?\u003c\/div\u003e\n\u003cp\u003eYes — the 24\" pneumatic Kenda tires handle indoor floors, sidewalks, pavement, and moderate outdoor terrain well. The overall width of 29\" fits through most standard 32\"–36\" doorways. Avoid using the standing function on wet, uneven, sloping, or soft-ground surfaces — the standing function should only be used on stable, level, dry ground. Use the seated position for outdoor navigation on varied terrain.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"mds-faq-item\"\u003e\n\u003cdiv class=\"mds-faq-q\"\u003eWhat seat size should I order?\u003c\/div\u003e\n\u003cp\u003eSeat width: measure your hip width while seated and add approximately 1\"–2\" for comfortable clearance on each side. A 16\" seat width fits users with narrower hips; 18\" accommodates average to larger hip widths. Seat depth: measure from the back of your buttocks to the back of your knee while seated, then subtract 2\"–3\" for optimal clearance. Most adults fit in the 18\"–20\" depth range. Contact us to confirm the right combination before ordering if you are unsure.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"mds-faq-item\"\u003e\n\u003cdiv class=\"mds-faq-q\"\u003eWhat is the warranty on the XO-55?\u003c\/div\u003e\n\u003cp\u003eThe Karman XO-55 Horizon frame carries a 3-year warranty from the date of purchase. Since the XO-55 has no electrical components, motor, or transaxle, there is no separate shorter electrical warranty — the 3-year frame warranty covers the primary structural and mechanical components. Upholstery, armrest pads, and normal wear items are not covered by warranty. All warranty claims require prior authorization from Karman Healthcare.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- BLOG CALLOUT --\u003e\n\u003cdiv class=\"mds-blog-link\"\u003e\n\u003cstrong\u003eStanding Wheelchair Guide\u003c\/strong\u003e\nComparing manual vs. power standing wheelchairs, or deciding whether a standing wheelchair is right for your situation? Our guide covers the clinical benefits of standing, how to choose between manual and powered options, and what to look for in a first standing chair. \u003ca href=\"\/blogs\/news\/standing-wheelchair-guide\"\u003eRead the Standing Wheelchair Guide →\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c!-- COMPARE --\u003e\n\u003ch2 class=\"mds-section\"\u003eCompare Karman Standing Wheelchair Options\u003c\/h2\u003e\n\u003cdiv class=\"mds-compare\"\u003e\n\n\u003cdiv class=\"mds-compare-card\"\u003e\n\u003cspan class=\"mds-tag\"\u003eYou're viewing\u003c\/span\u003e\n\u003cstrong\u003eKarman XO-55 Horizon\u003c\/strong\u003e\nManual · Gas-spring · No battery · 55 lbs · 250 lb · 16\"\/18\" seat · 3-yr frame warranty\u003c\/div\u003e\n\n\u003cdiv class=\"mds-compare-card\"\u003e\n\u003cspan class=\"mds-tag\"\u003ePower standing — push button\u003c\/span\u003e\n\u003cstrong\u003eKarman XO-101\u003c\/strong\u003e\nBattery powered · Lloyd controller · Push button standing · 56 lbs · 250 lb · NiMH battery · 250 stand cycles\u003cbr\u003e\n\u003ca href=\"\/products\/karman-xo-101-standing-wheelchair\"\u003eView XO-101 →\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"mds-compare-card\"\u003e\n\u003cspan class=\"mds-tag\"\u003eFull power wheelchair + standing\u003c\/span\u003e\n\u003cstrong\u003eKarman XO-505\u003c\/strong\u003e\nPower wheelchair + power standing · Mid-wheel drive · Power recline + ELR · LCD display · Higher capacity\u003cbr\u003e\n\u003ca href=\"\/products\/karman-xo-505-standing-power-wheelchair\"\u003eView XO-505 →\u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003c!-- WHY BUY --\u003e\n\u003ch2 class=\"mds-section\"\u003eWhy Buy From Medical Department Store?\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eAuthorized Karman Healthcare dealer — genuine products with full manufacturer warranty support\u003c\/li\u003e\n\u003cli\u003eFull range of standing wheelchairs, manual wheelchairs, power wheelchairs, and mobility aids\u003c\/li\u003e\n\u003cli\u003eSpecialists available to help compare manual vs. power standing options and confirm seat sizing\u003c\/li\u003e\n\u003cli\u003eFSA and HSA eligible — submit your receipt to your benefits provider for reimbursement\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- CLOSING CTA --\u003e\n\u003ch2 class=\"mds-section\"\u003eHave Questions? We'll Help You Choose.\u003c\/h2\u003e\n\u003cp\u003eThe Karman XO-55 Horizon fills a specific need — a fully manual sit-to-stand wheelchair for users who can initiate and control their own standing transition with gas-spring assistance, without needing a battery-powered motor. If you're comparing the XO-55 to the XO-101, confirming seat sizing, or need guidance on whether a manual or powered standing wheelchair is appropriate for your situation, contact us before ordering.\u003c\/p\u003e\n\u003cp style=\"font-size: 0.85rem; color: #888;\"\u003e*Consult your physician or physical therapist before use to confirm that a manual standing wheelchair is appropriate for your individual mobility, strength, and medical profile. Standing function should only be used on stable, level, dry surfaces. Do not use the standing function on wet, sloping, uneven, or soft ground. Always use all provided safety restraints (chest harness, pelvic seatbelt, knee strap) during standing transitions. Seat width and depth are measured at time of order — confirm measurements before placing your order as sizing cannot be changed after manufacture. FSA\/HSA eligibility subject to individual plan terms.\u003c\/p\u003e\n\n\u003c\/div\u003e\n\n\n\u003c\/body\u003e","brand":"Karman Healthcare","offers":[{"title":"Default Title","offer_id":64160687522161,"sku":"XO-55","price":4863.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0919\/6122\/9681\/files\/xo-55-half-position.webp?v=1783524362","url":"https:\/\/www.medicaldepartmentstore.com\/products\/xo-55-manual-lightweight-sit-to-stand-wheelchair-by-karman-healthcare","provider":"Medical Department Store","version":"1.0","type":"link"}