PROTO Half-Knuckle V2 Clamp 2 Bolt The low profile design allows

The low profile design allows a clean fit inside shoes

or other obstacles for the ultimate sesh

Sentry bars feature backsweep and upsweep for added comfort with large bar sizes

especially Flavio Pesenti's signature Reaper bar which is made of aluminum

PROTO Half-Knuckle V2 Clamp 2 Bolt The low profile design allowsThe PROTO Half Knuckle is and has been one of the most durable clamps on the market since PROTOs inception in 2008. Designed and manufactured in San Diego California by riders for riders! PROTO prides themselves in being on the innovative forefront of freestyle scooter product development and design. The Half Knuckle will work with both standard and oversized bars!