The EK/PBR 520SRX2 13/51 chain kit is designed to renew the rear transmission of motocross machines while maintaining a good balance between reliability and cost. From the SRX series, this reference benefits from regular adjustments specific to the EK CHAIN range without claiming miraculous performances: simply a robust and proven solution for off-road outings.
- Contents: 116-link chain + 13-tooth sprocket + standard 51-tooth rear sprocket.
- Pitch: 520 — compatible with motocross transmissions equipped with this pitch.
- Materials: steel chain / steel, steel rear sprocket — resistance and wear controllable through maintenance.
- Weight: 1.54 kg for 100 links (indicative value).
- Lifetime index: 3300 (reference for 100 links).
- Brand: EK CHAIN. Manufacturer reference: Not disclosed.
This kit is aimed at motocross riders looking for a solid aftermarket OEM part for chain and sprocket restoration. Standard mounting, regular maintenance (cleaning and lubrication) is recommended to preserve longevity. Compatible notably with TM RACING EN 300 models (2019–2020).
