Looking for a reliable, smooth-spinning replacement freewheel? The heavy-duty KOF-07B series is engineered specifically to withstand the high torque demands of electric bike hub motors, while remaining perfectly compatible with standard single-speed bicycles and BMX setups. Made from heat-treated, high-tensile steel, it ensures long-lasting durability, corrosion resistance, and incredibly crisp engagement for every ride.
Available in 16T, 18T, 20T, and 22T Options
(Please select your preferred tooth count from the variation menu before checkout)
| Brand | ATA Kang Di |
| Model | KOF-07B |
| Part Type | Single Speed Freewheel (1 Speed) |
| Material | High-Tensile Steel (Heat-treated, corrosion-resistant) |
| Thread Size | Standard M35 × 1 mm (Internal thread diameter approx. 34mm) |
| Chain Compatibility | Fits standard single-speed chains (1/2" x 1/8" or 1/2" x 3/32") |
| Compatible Bikes | E-Bikes, Electric Bicycles, BMX Bikes, Single Speed Commuters, and Cruisers |
⚠️ IMPORTANT FITMENT NOTE: Please measure your rear wheel hub threads carefully before ordering! This freewheel utilizes a standard M35 size opening. It will NOT fit smaller metric threads (such as M30) commonly found on some compact e-bike motors.