The objective when running your bump rubber in a cup it to increase drive. If a bump rubber is ran on top of a washer the bump rubber becomes distorted under compression and you lose force. When ran inside the cup the bump rubber maintains shape and the force is applied where you want it.
Our NXT Series Bump cup clips directly onto your NXT rod end. Its long enough to completely cover a 4 Rib bump rubber and fits over our small or large body shocks.
This WILL NOT fit older RS Series Shocks.
