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Motorbike parts and tools

Transmissions

Chain kit EK CHAIN PBR 420SR 11/52 - Standard Rear Sprocket

EXPRESS OFFER

EK CHAIN PBR 420SR 11/52 - Standard Rear Sprocket Chain kit Ref : EKC03137A / 3067790

EK CHAIN PBR 420SR 11/52 - Standard Rear Sprocket Chain kit

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EXPRESS OFFER

EK CHAIN PBR 420SR 11/52 - Standard Rear Sprocket Chain kitRef : EKC03137A / 3067790

Recommended retail price:61,49 €?

46,98 ^€

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Description
Compatible motorbikes
Questions and answers

DescriptionEK CHAIN PBR 420SR 11/52 - Standard Rear Sprocket Chain kit

Product details :

Features

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.

Technical information :

Reference

EKC03137A / 3067790

Chain pitch

420

Front sprocket version

Standard

Type

Standard

Chain color

Steel

Chain quality