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EK Chains

EK Chains SR Series 525 Drive Chain 120 Links

$96.95

SKU: 525SR-120

In Stock
In Stock
Ships by Nov 10
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The EK Chain SR Series is a heavy-duty, general-purpose, non-sealed drive chain designed for smaller displacement motorcycles, dirt bikes, and ATVs. This 525-size chain comes with 120 links and features solid bushings and rollers for increased wear life. It offers a tensile strength of 8,000 lbs./ft. and is suitable for street applications up to 400cc.

Constructed with a black finish, the 525SR designation signifies its robust build. The chain's specifications include a pin length of 20.20mm, a roller diameter of 10.16mm, and inner and outer plate thicknesses of 2.00mm. This non-O-ring design contributes to reduced friction.
Show original supplier description
The EK Chain SR Series is a heavy-duty, general-purpose, non-sealed drive chain designed for smaller displacement motorcycles, dirt bikes, and ATVs. This 525-size chain comes with 120 links and features solid bushings and rollers for increased wear life. It offers a tensile strength of 8,000 lbs./ft. and is suitable for street applications up to 400cc. Constructed with a black finish, the 525SR designation signifies its robust build. The chain's specifications include a pin length of 20.20mm, a roller diameter of 10.16mm, and inner and outer plate thicknesses of 2.00mm. This non-O-ring design contributes to reduced friction.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandEK Chains
Part Number525SR-120
CategoryDrivetrain

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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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