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JE Pistons

JE Pistons Yamaha R1 13.8 to 1 Piston Single

$334.99

SKU: J001 262541S

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INSTALL DIFFICULTY
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Moderate — 2–4 hours

Description

Forged from 2618-T61 aluminum, this single piston from JE Pistons is built for high-performance Yamaha R1 engines. It features a 13.8 to 1 compression ratio, which is a notable increase over stock, designed to extract more power from your engine when paired with appropriate tuning and fuel. The 2618-T61 aluminum alloy offers a good balance of strength and thermal expansion, making it a solid choice for demanding applications. Keep in mind that this piston is not CARB approved and cannot be shipped to California.

Fitment

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Specifications

BrandJE Pistons
Part NumberJ001 262541S

Buy with Confidence

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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