EK 428x136 SRO-Z O-Ring Chain, For TT250

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Product Overview

EK 428x136 SRO-Z O-Ring Chain: The Ultimate Link to Performance and Durability

With EK's quad staked riveting, anti-kink bushings, and high-quality o-rings to seal in oil and keep out water and mud, this is best replacement chain for your TT250. This chain will give you the performance, reliability, and lifespan you need for highway and extended trail riding. O-ring-chains are a must when operating your motorcycle at sustained speeds.

Unleash the full potential of your TT250 Enduro and SG250 Cafe Racer motorcycles with the EK 428x136 SRO-Z O-Ring Chain. Meticulously engineered in Japan, this chain is the epitome of strength and reliability, designed to withstand the rigors of both on-road and off-road adventures.

Key Features:

  • Chain Type: 428
  • Chain Length: 136 links
  • Maximum CC Capacity:
    • Street: 250cc
    • Dirt: 200cc
  • Tensile Strength: A robust 5300 lbs, ensuring unparalleled durability.
  • Wear Life Index: Rated at 1000, indicating an exceptional lifespan.
  • Master Link Type: Clip, for ease of maintenance.
  • Construction: Heat-treated steel alloy, providing a formidable structure.
  • O-Ring Design: High-quality o-rings seal in lubrication while keeping out water and grit, ensuring smooth operation and longevity.
  • Quad Staked Riveting: Guarantees a secure and unyielding connection between links.
  • Anti-Kink Bushings: Minimize the risk of chain kinks, maintaining a smooth ride.

Whether you’re cruising through city streets or exploring rugged trails, the EK 428x136 SRO-Z O-Ring Chain is your trusted companion, offering a blend of performance and endurance that only EK Motor Sport can deliver. Experience the difference with a chain that doesn’t compromise on quality or durability.



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  • 4
    Replaced stock chain

    Posted by Josh on Oct 12th 2022

    The stock chain was terrible. In less than 3mo of daily riding. The chain stretched & jumped off the rear gear 3 times between two rear wheel adj to tighten it. After the 3rd time. I replaced the rear sprocket (50T > 45T) & the chain. A tremendous positive difference in the performance is immediately noticed. This purchase is definitely worth the upgrade.

  • 5

    Posted by Jared Warren on Apr 2nd 2021

    This chain is awesome! The stock chain on the TT250 is trash. It actually left me stranded once after it stretched out way too much on about a 15 mile ride. I haven't had to adjust this chain at all in over 500 miles, maybe closer to 1000 miles now. If there's one must have upgrade for the TT250, it's THIS chain.

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