06-26-2014, 03:19 AM
Are [url=http://www.jtsprockets.com/catalogue/model/599]JT Sprockets good?
There's a chart that says going from the 18 to the 17 in the front is hair more effective than going from a 39 to a 41 in the back. They have a 15 for the front!
There's a chart that says going from the 18 to the 17 in the front is hair more effective than going from a 39 to a 41 in the back. They have a 15 for the front!