KITACO Driven Sprocket Rear Gear 36T 520 CBR250R/CB250F 535-1818036R Gear 36T CBR250R (MC41) When changing the number of chains, it may be necessary to change the chain when installing. Changing to a number other than the normal number will cause an error in the speedometer display. In that case, please use a speed pulse conversion unit. Kitako is a motorcycle specialist. Through the development, manufacture, and sale of high quality products, we respond to each individual's needs and support them in realizing their