JT/JT 420HDR 11/52 Chain Kit (OEM ratio) reinforced - standard steel sprocket
This JT DRIVE CHAIN kit is designed for motorcyclists seeking a robust transmission for urban use. It is mounted with a pitch of 420 and comes with a 11-tooth sprocket and a 52-tooth rear sprocket (OEM ratio), combining a chain in black/steel and a sprocket made of standard steel. The type HDR and the mention Racing Quality indicate a design focused on strength and durability compared to basic OEM setups.
- Composition: black/steel chain, standard steel sprocket
- Pitch: 420
- Ratio: 11/52 (OEM)
- Type: JT HDR reinforced
- Replaced references: 3024901 / 3042558
- Universe: urban
Ideal for mopeds and small displacement bikes, this kit is compatible with several Rieju 50cc models listed, including the RIEJU MRT 50 SM (2025), MRT 50 ENDURO (2025), and MRT 50 SM TROPHY (2024). To get the best performance from the transmission, adhere to the manufacturer's torque specifications and regularly maintain the chain (cleaning and lubrication).
