Wonder - SOLOROCK 20" 8 Speed Aluminum Folding Bike - Disc Brakes

The SoloRock Wonder 8-Speed Folding Bike features 20" wheels for a smoother, more stable ride while maintaining a compact, foldable design. Fully equipped with a rear rack, fenders, and an 8-speed drivetrain, it's perfect for commuting, errands, and urban adventures in any weather. Powerful hydraulic disc brakes make for powerful stopping in all conditions!

2025 Version - Disc Brakes Version - Upgraded to Hydraulic Disc Brakes
Learn more about Wonder Aluminum Disc in this blog post.

SR-Wonder-Al-2082D
Frame Size	20" Aluminum
Speed	8-Speed Shimano Altus
Folding Size	32 x 80 x 66cm (12.6”x31.5”x26”)
Bike Weight	13 kg (29 lb approx.)
Max Rider Weight	105 kg (230 lb)
Rider Height	1.52m - 2.00m (5'0" - 6’6”)
Folding Time	15 sec
Frame & Fork
Frame	20” Aluminum Alloy Frame, Chubbs head tube
Fork	Aluminum Alloy, Curved Taper Blades
Magnet Holder	Included
Cockpit
Handlepost	6061 Aluminum Alloy, Forged Folder, 2-section, Height Adjustable
Handlebar	6061 Aluminum Alloy, Telescopic, Angle-Adjustable/Detachable
Headset	Integrated
Saddle	High-Density Foam, Dual-Color, with Clamp
Seatpost	6061 Aluminum, Thickened & Extended, Laser-Engraved Scale Mark, Anodized, No-Scratch / Anti-Slip Bushing
Brakes
Brakes	Hydraulic Disc Brakes
Brake Levers	Aluminum
Wheels
Hubs	Anodized 6061 Aluminum, BK
Rims	Anodized 6061 Aluminum, Double-Walled, Side Wall CNC-ed, BK
Spokes	14G Stainless Steel, ED (36 Rear / 32 Front)
Tires	20” x 1.75” Kenda, BK
Transmission
Shifter	Shimano Altus
Rear Derailleur	Shimano Altus
Cassette	8-Speed (11T-32T)
Crankset	52T, Cold-Forged Aluminum Cranks (170mm arms), Anodized BK, Aluminum Chainwheel Guard
Bottom Bracket	Maintenance-Free Cartridge
Chain	KMC, Anti-Rust Surface Finished
Pedals	Wellgo Aluminum Folding with Reflector, BK
Accessories
Kickstand	Aluminum, Central Mount, ED BK
Fenders	Plastic with Stainless Steel Fender Stays
Rear Carrier	Aluminum Alloy, ED BK
Bell	BK