JT. 420HDR 12 - 48 124 Chain kitRef : JTC01816A / 3055754

Replace your transmission with a robust kit designed for urban use. The JT 420HDR kit includes a super-reinforced O-Ring chain with a pitch of 420, a steel front sprocket, and a steel rear sprocket — the ideal trio for 50cc and small city motorcycles that demand reliability and longevity. Finished in a sleek black/steel that is resistant to abrasion.

• Chain Type: 420HDR (O-Ring)
• Number of Links: 124 (12-48-124)
• Sprocket/Crown Material: High-strength steel
• Color: Black / steel
• Quality: Super-reinforced
• Weight: 0.74 kg / 100 links

• Reliable transmission for urban traffic: frequent starts and repeated stops handled consistently.
• O-rings to maintain internal lubrication and limit wear on pins and plates.
• Machined steel components for a good fit tooth to tooth and smooth torque transfer.
• Complete kit delivered ready to install for quick chain maintenance.

Tip: Check compatibility with your model (e.g., RIEJU SMX/MRX 50) and adjust the tension after installation. Manufacturer reference: not provided.