Sprockets for modified gearing systems
For cog sets, please see the gear modification sections. If you have questions on selecting the correct sprockets, please feel free to contact us.
21T Cog for Derailleur 4/5 Speed Gearing System (Standard)
Sale $ 7.5 USD
7.0 EUR
5.8 GBP
1158 JPY
240 TWD
21T Cog for Derailleur 4/5 Speed Gearing System
The 21T sprocket will clear the chainstay, when fitted as the 4th sprocket and beyond.
WHEN USED IN COMBINATION WITH THE 18T SPROCKET IN A CHAIN PUSHER BASED SYSTEM, PLEASE CHOOSE THE MACHINED VERSION.
1.65mm thickness (11S specification)
The 21T sprocket will clear the chainstay, when fitted as the 4th sprocket and beyond.
WHEN USED IN COMBINATION WITH THE 18T SPROCKET IN A CHAIN PUSHER BASED SYSTEM, PLEASE CHOOSE THE MACHINED VERSION.
1.65mm thickness (11S specification)
