EK/JT 420SH 11/47 Chain Kit - Standard Sprocket
This complete kit combines the EK 420SH chain (O-ring) with an 11-tooth front sprocket and a 47-tooth rear sprocket made of JT steel. Designed for small urban engines, it provides a simple and robust solution to renew the drivetrain: chain, sprocket, and rear sprocket are delivered ready to install.
Main Features:
- Type: EK 420SH chain with O-ring seals – lubrication preserved for reduced wear.
- Configuration: 11-tooth sprocket / 47-tooth rear sprocket (standard steel sprocket).
- Number of Links: 124 links (adjustment may be needed depending on installation).
- Pitch: 420 – roller width 6.35 mm.
- Material: High-strength steel chain and sprocket, JT steel sprocket for increased longevity.
- Weight: 0.91 kg for 100 links (indicator of robustness).
Benefits for the Rider:
- Reliable transmission and smooth torque delivery for urban use.
- Complete kit ready to replace worn parts, simplifying maintenance.
- Suitable for listed lightweight models (e.g., Aprilia RS 50 Replica 2002‑2005) — check vehicle compatibility before installation.
For optimal lifespan, check the tension, clean, and re-lubricate the chain regularly. Manufacturer reference: not provided.