DRIVEN RACING Rear Sprocket - 45-Tooth 5178-520-45T Competition Muffler Packing Bio Flex knee armor allows

Bio Flex knee armor allows high levels of movement and has a slim design to ensure the protector is discreet off the bike

filter if needed

Compact design for discrete placement and easy installation

Each rotor is individually heat-treated and double-disc parallel ground to ensure perfect-flatness

Setup shown is our VE2 kit that has the best midrange to top end balance for road racing at most tracks (see option VE1 stacks for high speed tracks with long straights or drag racing)

DRIVEN RACING Rear Sprocket - 45-Tooth 5178-520-45T Competition Muffler Packing Bio Flex knee armor allowsOne of the lightest 520 steel sprockets available today Designed using our proprietary EST Technology Performance and longevity all in one sprocket Attractive black zinc semi gloss finish Lowered surface to remove unnecessary weight