EK/PBR 420SR 11/52 Chain Kit - Standard Sprocket
This EK CHAIN kit combines the EK 420SR non O-ring chain, a PBR steel front sprocket, and a steel rear sprocket: a simple and robust solution for the transmission of small urban engines. Designed for road use and light off-road, it focuses on the strength of materials and easy installation to get the transmission back in working order.
Technical Details
- Chain Type: EK 420SR (non O-ring)
- Pitch: 420
- Number of Links: 126
- Roller Width: 6.35 mm
- Tensile Strength: 6,500 N (up to ~25 HP)
- Materials: treated chain and high-strength steel sprocket/crown
- Weight: 0.75 kg for 100 links
- Durability Index: 200 (reference for 100 links)
Highlights
- Complete kit: chain, front sprocket, and rear sprocket for quick replacement.
- Steel components for good wear resistance and urban conditions.
- Practical compatibility with small trails and supermotard 50 cc requiring reliable transmission.
Tip: check the pitch and the number of teeth (11/52) before installation. This kit is particularly suitable for RIEJU MRX 50, SMX 50, and MRX 50 PRO models. Regularly maintain the chain (cleaning and lubrication) to maximize its lifespan.
