Mountain Bike Hollow Integrated Crankset Road Outdoor Bicycle 36T 22T Crank Variable Speed Chainwheel Bicycle Accessories Bike Crankset Tooth Plate

Features:
Aluminum alloy and chrome molybdenum steel are selected for elaborate production, not easy to rust, firm and wear-resistant, and has long service life.
The use of lubrication, high efficiency, can effectively drive the chain, riding more labor-saving.
Lightweight design, less load, conducive to long-distance riding.
Hollow design, effectively reduce the weight, while nice heat dissipation.
A variety of crank center distance to choose from, users can choose to matching their own bicycle, repairings and replacement, improve the service life of the bicycle and driving safety.