Description Are you looking for a professional, yet affordable 12 tooth flywheel? Are you in search of a sturdy, trustworthy tool that can do multiple jobs at once? If yes, look no further! Our professional 12 tooth flywheel must meet you needs. It is one of the best choices for you. Features - Color: Brown. - Material: Steel. - Size: 5.3 x 5.3 x 2.65 cm/2.1 x 2.1 x 1.04 inch. - The smaller the number of teeth, the faster the speed. The rear flywheel has 16 teeth, so if you use a 12-tooth rear flywheel, then its can be increased by 30%. - Exquisite workmanship, not only practical but also beautiful. - Precise threading, it can be connected with your bike, and it will do more with less. - It works very smoothly, and the precise bite effect is also great.Mainly made of durable steel. - It can promise smooth rotation of chain. - Easy to install and use. The smaller the number of teeth, the faster the speed The rear flywheel has 16 teeth, so if you use a 12-tooth rear flywheel, then its can be increased by 30% |Exquisite workmanship, not only practical but also beautiful |Precise threading, it can be connected with your bike, and it will do more with less |It works very smoothly, and the precise bite effect is also great