Specification:
Item Type: Bike Freewheel
Material: Steel
Number of Flywheel Teeth: 13-14-15-17-19-21-24-28-32T
Applicable: 9/2x9/27 Speed
Bottom Internal Thread Diameter: Approx. 34mm / 1.3in

Package List:
1 x Bike Freewheel

Note:
Notice before purchase: if your chain ride time is too long, it is recommended not to replace the new flywheel at will; If the flywheel is replaced with a new one, there will be tooth skipping and chain skipping, which will affect the normal riding.resolvent:
Method 1: replace the old flywheel with the old chain;
Method 2: in the case of tooth skipping and chain skipping, ride forcibly for a period of time. The running in time varies according to the wear of the chain