Aluminum sprockets with 350g (size 45) 
 for chain versions 520 
 Available colors: black, orange, red, silver, hard anodized (more durable than anodized) 
 Sprocket carrier: 76 / 100-5 holes 
 for all models: 
 GSX-R 600 (BJ: 04-19) 
 GSX-R 600 L1 - L7 (BJ: 11-19)