EK/JT 420SH 11/52 Chain Kit - Standard Sprocket
This complete kit combines the EK 420SH (O-ring) chain with a JT front sprocket and a rear steel sprocket. Designed for urban motorcycles and small displacements, it provides the essential components to replace the secondary transmission: chain, sprocket, and rear sprocket, ready to be mounted for a reliable engine/wheel connection.
Technical Details
- Chain: EK 420SH with O-ring seals for preserved lubrication and reduced maintenance.
- Pitch: 420
- Number of Links: 126
- Roller Width: 6.35 mm
- Tensile Strength: 8,000 N (suitable for motorcycles up to ~30 HP)
- Color: steel / steel
- Sprocket and Rear Sprocket: made from high-strength steel, teeth machined for good coupling with the chain.
- Weight: 0.91 kg / 100 links
- Relative Lifespan (100 links): 200
Advantages
- Complete kit ready to mount: saves time and ensures component consistency.
- O-ring chain: better preservation of internal lubrication.
- Steel components: durability for urban use and daily commuting.
Manufacturer's reference: Not provided. Compatible notably with RIEJU MRX 50 PRO (2007‑2008) and RIEJU MRX 50 (2008). Always check the dimensions (11/52) and the number of links before ordering.