EK 525SROZ2 O‑Ring Transmission Chain (manufacturer part number: 525SROZ2-STL 114 MLJ) — an EK CHAIN designed for road, trail, or off-road transmission. Crafted with O‑Ring seals, it retains lubrication and limits wear on the pins and bushings while remaining compatible with a wide range of modern and classic motorcycles.
- Type: 525 O‑Ring transmission chain
- Number of links: 114
- Pitch: 525
- Color: steel / steel
- Weight: 1.81 kg for 100 links
- Relative lifespan: 2500 (for 100 links)
- Construction features: perforated links to reduce mass, heat-treated steel alloys, and finish compliant with EK standards
Versatile, this chain fits on roadsters, trails, sport bikes, or even vintage machines when the reference allows. Ideal for riders looking for a reliable and easy-to-install replacement part during a transmission overhaul — sprocket, crown, and chain — be sure to check the pitch and adhere to the recommended break-in and lubrication procedures. Frequently compatible models include: BMW F 900 XR, Yamaha Tracer 9 GT+, Triumph Tiger 850 Sport (check fitment on your model).
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