This rear Sprock will brought you a gain in Weight

Made of ripstop polyester fabric for excellent durability and resistance

Brake lives assembly with long Holder in cast aluminum

The K37 has a good sized footprint

Molded intake openings for ventilation and fog resistance

ARLEN NESS AIR CLN BEVLD 17-18FL CH 18-918 derbi-senda-50-r-drd-50-2006-esi8320140 This rear Sprock will broughtForged Billet Aluminum Backing Plate Features Big Sucker Hidden Breather Technology and a Radius Air Inlet for Smooth Airflow, Forgred Billet Air Filter Feature Exposed Design and A CNC INverted Top that acts as a velocity stack to help in the way. Heads and exits at Throttle Body Carb to Create a Virtually Closed Loop System, Performance Filters Features A Black Synthetic Filter Wrapped in A Stainless Steel Jacket, Black Stainless Steel Jacketed