GritShift has produced an amazing upgrade for your favorite e-bike. The rear suspension linkage has been a known weak point in the stock suspension set up since day one. Many riders have complained about suspension noise and play since the bike was released. That play means there's only a matter of time till bearing failure and linkage failures are coming. This linkage is designed with 4mm of shock preload. Your linkage will lightly rest on the swingarm at full droop with the rear wheel off the ground. This is a huge advantage for all bikes! Most Mountain bike suspension does not include a top out control on the shock. Which unfortunately leads to the shock shaft and seals slamming into the shock body at full droop. This will prematurely blow out your suspension seals and rebound control. To prevent premature shock wear, we have designed these linkages to have 4mm of top out stop, similar to limiting straps found on Trophy trucks and side by sides. This will greatly increase the life of your shock and components, especially for heavier riders needed 550-650 lb. springs., and guys that love sending it on the big jumps. This will only fit the correct 10.5 x 3.5 inch, and smaller shocks! Longer shocks are not advised.