
JT/JT 420HDR 13/52 Chain Kit (non-OEM) Reinforced: a final drive set designed for urban riders and 50cc scooters. This kit combines a chain with a pitch of 420 of type HDR with XS-Ring seals and a standard steel sprocket. Delivered in black/steel color, it is aimed at riders looking for a robust replacement part not provided by the manufacturer (non-OEM).
The kit is reinforced to withstand intensive urban use and frequent trajectories. Standard installation and maintenance: check tension, lubrication, and wear of the seals after break-in. Suitable for the following RIEJU models:
Before installation, check the exact compatibility with your motorcycle and replace the sprocket, crown, and chain in one operation to ensure uniform wear and optimal transmission.