Ultra-Lightweight Design
Weighs only 29 lbs (without footrest) and features a folding backrest and seat for compact transport and storage—ideal for travel and daily mobility.
In stock
Couldn't load pickup availability

The S-305 Ergonomic Wheelchair is designed with user comfort and long-term mobility in mind. With quick-release wheels, a flip-back height-adjustable armrest, and a seat height that adjusts to 18”, 19”, or 20”, this wheelchair offers essential customization at a significantly more competitive price than fully customized models.
Weighs only 29 lbs (without footrest) and features a folding backrest and seat for compact transport and storage—ideal for travel and daily mobility.
If you require a wheelchair for short-term use, other models may better suit your needs. However, if you’re looking for a high-quality, long-term mobility aid, the S-305 is a game-changer. Ergonomic design isn’t just a buzzword—it translates to better posture, improved comfort, and intuitive controls that make daily use effortless.
With an overwhelming number of wheelchairs available, making the right choice can be daunting. That’s why we created this review series—to help you cut through the clutter and make an informed decision.
By any measure, the S-ERGO-305 Ultra Lightweight Wheelchair is one of the best models on the market today. In fact, it earned top honors in our roundup of the best wheelchairs available.
In the sections that follow, we’ll explore everything this exceptional wheelchair offers—its strengths, features, and even its few limitations—so you can decide if it’s the right fit for you.
Designed for comfort, mobility, and long-term use—experience the next level of wheelchair innovation!
| Feature | Specification |
|---|---|
| S-ERGO-305 Ultra Lightweight Wheelchair – Technical Specifications | |
| HCPCS Code | K0005* |
| Seat Dimensions | |
| Width | 16" or 18" |
| Depth | 17" |
| Height Adjustable | 18", 19", or 20" |
| Armrest Height | 9" – 11" |
| Back Height | 17" |
| Overall Height | 38" |
| Overall Open Width | 24" or 26" |
| Overall Length | 43" |
| Folded Width | 12" |
| Weight Without Riggings | 29 lbs |
| Weight Capacity | 250 lbs |
| Shipping Dimensions | 34" L × 31" H × 12.5" W |
Designed for maximum comfort, adjustability, and ease of transport!
⚠ WARNING: This product may expose you to chemicals, including [specific chemical name if known], which is known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Warranty Coverage
• Lifetime Warranty on Main Frame (from the date of purchase) for the following models:
• S-ERGO 105, 106, 115, 305, KM-3520, KM-802, KM-5000, KM-7501, KM-8020, VIP515, MVP-502 series
• Parts Warranty: 6 months
• One-Year Warranty on Main Frame (from the date of purchase) for the following models:
• KM-9020L, KM-TV10, KM-AA10, KM-AA20
• Parts Warranty: 6 months
Warranty Conditions & Limitations
• The warranty only applies to the original purchaser and is not transferable.
• Normal wear-and-tear is not covered, including arm pads and upholstery.
• Wheelchairs must be returned to the authorized dealer where they were originally purchased for warranty claims.
• Labor and freight charges associated with installation or repair are not covered.
• A Returned Merchandise Authorization (R.M.A.) number is required before returning any product for warranty service. Items must be shipped insured with freight prepaid.
• If a Warranty Registration Card is not on file, proof of purchase (invoice) must be provided.
• The warranty for consumers begins on the purchase date from the seller.
• The warranty for sellers (if the product has not been sold to a consumer) begins on the invoice date from Karman Healthcare.
• Removing or altering the serial number tag will void the warranty.
Warranty Exclusions
The warranty does not cover:
1. Products subjected to negligence, abuse, improper storage, or handling.
2. Products damaged due to improper operation, unauthorized modifications, or misuse.
3. Frames or parts damaged from exceeding the maximum weight limit.
This warranty applies only within the U.S. and is limited to repair or replacement of defective parts at Karman Healthcare’s discretion. It replaces all other expressed, implied, or statutory warranties.
Weight Cap: 250 lbs | Seat Sizes: 16"-20" | Weight: 25 lbs
Weight Cap: 250 lbs | Seat Sizes: 18"-20" | Weight: 29 lbs
Weight Cap: 250 lbs | Seat Width: 16"-20" | Weight: 25 lbs
Weight Cap: 220 lbs | Seat Sizes: 16"-18" | Weight: 19 lbs
Weight Cap: 250 lbs | Seat Sizes: 16"-18" | Weight: 25 lbs
Weight Cap: 352 lbs | Seat Width: 20"-22" | Only 35 lbs