420 HDR Chain Kit - 111/62 - 140 Standard Steel Sprocket by JT.
Complete JT 420HDR chain kit consisting of a reinforced chain, a front sprocket, and a rear sprocket made from thermally treated C45 steel. Designed to provide a durable transmission with minimal maintenance for daily use, leisure, or light sports. Particularly suitable for lightweight motorcycles, pit bikes, and mopeds.
Design and Materials
- JT 420HDR chain with hardened pins and reinforced links ensuring better traction and increased longevity.
- Front sprocket and rear sprocket made from thermally treated C45 steel for wear resistance and smooth operation.
Practicality and Features
- Complete pack: chain, front sprocket, and rear sprocket matched for simple and consistent replacement.
- Low-maintenance design, reducing the frequency of maintenance interventions.
Usage and Performance
- Suitable for 50–125 cm³ motorcycles, pit bikes, and mopeds for a transmission tailored to lightweight machines.
- Ideal for daily use, leisure, and light sports activities thanks to its reinforced components.
Advantages
- Road Type: configuration designed for the road use of small displacement vehicles.
- Compatible Universes: Urban, Supermoto, and Enduro for a wide range of usage versatility.
Examples of Compatible Motorcycles
- RIEJU MRT 50 SM TROPHY (2026 - 50 cm³)
- RIEJU MRT 50 SM PRO (2026 - 50 cm³)
Complete list of compatible motorcycles available in the dedicated section below
