Requires A : 4-channel radio gear

You will be able to confidently drive your HPI kit with other drivers without worrying about things like frequencies or radio conflicts

Build your own bridge by any material like PVC pipe or wood

Inside sidewall ribbing - provides sidewall support and stability

Hot Racing - Blue Internal Spring Air Shocks, 120mm CIS85168 Requires A : 4-channel radioHot Racing 120mm internal spring air damper shock set for rock crawlers or other custom projects. Features: CNC machined aluminum shock bodies, black anodized CNC machined aluminum upper shock cap with o ring seal, blue anodized CNC machined aluminum lower shock cap with shock shaft guide, blue anodized Precision machined 7mm stainless steel shock shaft for durability Double o ring lower shaft seal Air damping Specifications: Extended center to center