Heavy Hitter has produced an amazing upgrade for your favorite e-bike. The rear suspension linkage is a known weak point in your Talaria stock suspension setup. Many riders have complained about suspension noise and play since the bike was released. That play means it's only a matter of time until bearing and linkage failure comes. Our 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! None of our E-Moto rear shocks include a top-out control it's impossible to fit due to the size constraints. Unfortunately, this leads to the shock shaft and seals slamming into the shock body at full droop. If this happens continuously, it will prematurely blow out your suspension seals and rebound control. To prevent premature shock wear, we have designed the linkage to have a 4mm 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 needing 550-650 lb. springs, and guys that love sending big jumps.  This will only fit the correct 10.5 x 3.5-inch and smaller shocks! Longer shocks are not advised.  Note: Always grease bearings before installing! Features Made from 7075 Billet Aluminum Steel bushings for a precision no-slop fit Pre-assembled with new bearings, bushings, and seals (Please Grease Before Install) Improved quality and strength! Simple installation takes 20 minutes or less Type 2 black anodized finish Fitment Talaria Sting MX3 / MX4 / MX5