As above. It's best to replace as a set. You'll only accelerate the wear keeping the old chain on. As for gearing......... are you happy with what you've got at the moment? Most common change is 1 tooth off the front, to a 14T. If you're going to remain with the stock type of rear sprocket you're stuck with only a couple of options as there isn't a great range to choose from unless you go DP and these are very expensive. If the bikes a keeper, then it's worth considering a Renthal carrier as future rear sprockets will work out cheaper. You also have a large range of tooth options to choose from. |