AFAM Chain kit 428XMR2 14/41 Reinforced - Standard Rear SprocketChain set consisting of: Reinforced chain with Xs rings for engines up to 650 cc and road use Standard steel sprocket Standard steel sprocket AFAM A DOMINANT CHAIN BLOCK CAST TECHNOLOGY Depending on the performance and use of your motorcycle, you should fit a suitable chain. A heavy touring bike with a pillion passenger and packed with luggage is not the same as a sports bike. A race on a closed circuit is not the same as a race on the Isle of Man.