SB Fitness Equipment Walking Pads
US-based online fitness equipment retailer specializing in self-generated curved manual treadmills (CT-series). Backs every CT-series machine with a 5-year frame and 2-year parts warranty, fulfilled in-house. The CT250 is the entry point of the curved lineup -- a steel-frame, slat-belt walking treadmill -- and the only model in the series small enough to land near the under-desk price tier.
SB Fitness Equipment CT250
The cheapest credible steel curved-belt manual treadmill on Amazon -- a 5-year-frame, 2-year-parts machine at ~$1,000. Built around the same self-generated curved-belt format as the gym-grade CT400/CT550 (and the more expensive TrueForm/AssaultRunner), but trimmed down to a 250 lb capacity and a 50" x 16" running surface. Most buyers want it for under-desk walking; skipping the medical handrails during assembly drops it to a workable height for that role, though SB Fitness officially designates them as fixed.
SB Fitness Equipment CT550
The mid-tier curved manual in SB Fitness's CT line - one step above the entry-level CT250 (walking-only) and one step below the CT700/CT850 commercial sprint units. Steel-frame curved-belt manual with 8 magnetic resistance levels, a 20" x 62" running track, 350 lb capacity, and a 10-year frame warranty. Manufacturer positions it for "long distances and sprinting" - explicitly broader than the CT250's walking-only lane - which is what pulls its desk-walking viability score below the CT250's despite the genuinely detachable handrails.
How SB Fitness Equipment’s models differ
 SB Fitness Equipment CT250 Check price |  SB Fitness Equipment CT550 Check price | |
|---|---|---|
| Price (US) | $1095.00 | $2500.00 |
| Belt (L x W) | 50" x 16" | 62" x 20" |
| Max user weight | 250 lb | 350 lb |
| Height | 49.25" | 57" |
| Footprint (L x W) | 60" x 31" | 70" x 34" |
| Unit weight | 92 lb | 181 lb |
| Shock absorption | Yes (5/10) | No |
| App | No | No |
| Warranty | 2 yr | 10 yr |
| Rating | 2.6 / 5 (3 ratings) | - |