Rear chain guide slider built to keep the drive chain aligned on the sprocket, prevent chain drop, and protect the chain from damage on electric dirt bikes. Fitment Yozma IN10 and IN10 Pro Valtinsu EM5 Heybike Villain Tuttio Key Details Color: Black Material: Lightweight, wear resistant, impact resistant plastic with a thickened structure Mounting bolts included Weight: about 0.1 lb Pros Helps prevent chain drop and derailment during jumps, bumpy off road riding, hard acceleration, hard braking, and steep descents Protects the chain and limits side to side chain movement Reduces chain slap and drivetrain noise for a smoother ride Lightweight design adds no noticeable burden Installation Align the chain guide with the original mounting point on the swingarm. Insert the included bolts through the mounting holes. Tighten the bolts securely. No drilling or modification needed. Ships within 3 days.