About how to disassemble crank, please refer to the following steps:
Step 1: Remove the crank screw.
Step 2: Remove the chainwheel.
Step 3: Screw the black side in the crank hole.
Step 4: Use wrench screw the white side.
Copyrght 2015 CNEBIKES CO.,LTD All Rights Reserved sitemap Designed by Zhonghuan Internet