03-20-2013, 03:02 AM
Hi, I'm trying to replace chainwheel, chain and freewheel. They all are very worn. I can't use the Bolt Circle Diameter method for my 4-arm crankset because it has 2 rivets on one arm and 1 rivet on the next arm. It's a Suntour SR. I read that on that kind of crankset I can't replace a single chainring--that the whole crankset has to be replaced. As for the chain, I guess I can just use a 3/32" 7-speed chain since the freewheel is a 7 speed. And I guess I can just get another 7 speed freewheel. Am I correct about what chain and freewheel to buy? And how do I know what crankset will fit? Will the ones at these urls work? http://www.amazon.com/Shimano-FC-M131-Tourney-Crankset-48-38-28/dp/B003ZMDJW6/
http://www.amazon.com/Shimano-FC-M171-Altus-Crankset-170-mm/dp/B003ZMFNX4/
http://www.amazon.com/Shimano-M361-Hybrid-Crankset-Black/dp/B004V2996E/
Thank you.
http://www.amazon.com/Shimano-FC-M171-Altus-Crankset-170-mm/dp/B003ZMFNX4/
http://www.amazon.com/Shimano-M361-Hybrid-Crankset-Black/dp/B004V2996E/
Thank you.