BQBQERT Bicycles Cassettes Cogwheel Freewheels Mountain Bike Freewheels High Strength Single Speed Flywheel Easily to Install

Features:
The high performances designs of road bike single speed flywheel provide fast cycling speed while saving effort.
Mountain bike single speed flywheel have smooth turn action none much noise.
Make of steels, strong, Rusts and wear .
It have high accuracy thread machining to ensures a tight connection with the bike wheel andsilky running.
And It can directly replaces old and break accessories, ensuring the normal of your bike.

Specifications:
Materials: Steel
Number of teeth: 16T/17T/18T/19T/20T/21T/22T/23T
Size: As Shown in the Picture

note:
Please allow 1-2cm errors due to manual measurement, make surely that you not mind before order. Due to difference between different monitors, the picture may not reflect the actual color.

Package Includes:
1pc Single Speed Flywheel