What brand are you fitting and how aggressive is your riding style.

I might be pointing the obvious but... even Kev would agree that it is not wise to fit a new sprocket to a worn chain, no matter how good it looks a chain that has done in excess of 7000 is a goner and will take the sprocket down with it, reducing it's life span.


We highly recommend you fit Renthal sprocket as they do last longer. Couple that with a Tsubaki chain and Hard anodized rear sproket in a kit and you are laughing.

http://www.bandcexpress.co.uk/drive-kits/4172-ha-apx-kit-with-renthal-hard-anodised-and-tsubaki-x-ring-gold.html