Mtchell Posted October 21, 2008 Report Share Posted October 21, 2008 hi i have a onza tbird with a 24t sprocket as its damaged i want to upgrade if i changed the sprocket to a 18t would i have to change the crank and chain im well confused don't wanted to buying something for it not to work correctly help please Quote Link to comment Share on other sites More sharing options...
Mikee Posted October 21, 2008 Report Share Posted October 21, 2008 if your chainring is 24t then i imagion it bolts onto the cranks. if you want a 18t chain ring you will have to buy some new cranks and you would probably just need to take a few links out of the chain. Quote Link to comment Share on other sites More sharing options...
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