A compact, quiet magnetic upright bike with eight resistance levels and a slim footprint for easy home cardio in small spaces.
MSRP is a reference figure — live price is on the retailer's site.
The Sunny SF-B910 is a compact upright exercise bike aimed at riders who want simple, quiet cardio without a large machine taking over a room. It uses a quiet magnetic resistance system with eight levels adjusted by a tension knob, giving enough range for light recovery rides through more demanding steady efforts while staying silent enough for early mornings or shared living spaces. The upright frame puts you in a comfortable, posture-friendly seated position that is easy on the back, and the contoured seat adjusts in height to fit a range of riders. A small battery-powered LCD displays time, speed, distance, calories and total odometer so you can track basic progress, and the caged pedals with adjustable straps keep regular shoes secure. The slim footprint and low weight make it genuinely easy to move and store, with transport wheels assisting. Limitations include a light flywheel that is best for steady cardio rather than intense intervals, only eight resistance levels, and no app connectivity. For beginners, light users and small apartments where space and quiet matter most, the SF-B910 is an affordable, no-fuss option.
| Bike type | Upright |
|---|---|
| Resistance | Magnetic |
| Flywheel | 9 lb |
| Console | Battery-powered LCD with core metrics |
| Connectivity | None |
| Adjustable seat | Yes |
| Foldable | No |
| Max user weight | 275 lb |
| Dimensions (L×W×H) | 35" × 19" × 47" |
|---|---|
| Floor footprint | 4.6 sq ft |
| Product weight | 49 lb |
Sunny Health & Fitness
A folding semi-recumbent bike with eight magnetic levels and a backrest, combining seated comfort with closet-friendly storage.
Sunny Health & Fitness
A no-frills friction indoor cycle with a very heavy flywheel and a chrome look, aimed at budget spin-style training.
Sunny Health & Fitness
A compact folding upright bike with eight magnetic resistance levels and a slim profile for small-space, low-impact cardio.