What is the compression ratio of this piston?

This JE Pistons 274760S piston features a 12.5 to 1 compression ratio. This is a higher compression ratio than stock, designed to increase engine power and performance.

What type of fuel should I use with this piston?

Due to the increased 12.5 to 1 compression ratio, it is recommended to use premium fuel with this piston. Using lower octane fuel may lead to engine knocking or detonation.

Can this piston be shipped to California?

No, this piston is not CARB approved and cannot be shipped to California due to emissions regulations.

JE Pistons 274760S Forged Piston - Honda CRF 450

Name: JE Pistons Honda CRF 450 12.5 to 1 Piston Single
Brand: JE Pistons
SKU: je-pistons-je-pistons-honda-crf-450-12-5-to-1-piston-single-t14-695390
Price: 349.99 USD
Availability: BackOrder

JE Pistons Honda CRF 450 12.5 to 1 Piston Single

$349.99

On Backorder

Order now to reserve yours — we'll ship as soon as stock arrives. Full refund if we're unable to fulfill.

JE Pistons Honda CRF 450 12.5 to 1 Piston Single

Key Features

This is a single forged piston for the Honda CRF 450.
Features a 12.5 to 1 compression ratio for improved performance.
Constructed from high-strength aluminum alloy for durability.
Designed as a direct replacement or upgrade for one cylinder.
Not CARB approved; cannot be shipped to California.

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Product Details

Forged from high-strength aluminum alloy, this JE Pistons 274760S piston is built for the demands of your Honda CRF 450. It features a 12.5 to 1 compression ratio, which is a notable increase over stock, designed to give your engine more power and improved throttle response. This piston is a single unit, intended as a direct replacement or upgrade for one cylinder.

JE Pistons are well-known for their robust construction and precision machining. This forged piston is stronger and more durable than cast pistons, making it a solid option for riders looking to get more performance out of their machine. The 12.5:1 compression ratio is a popular choice for those seeking a significant power boost without compromising too much on reliability, though it does require premium fuel to prevent knocking. Ensure your engine's fuel and ignition systems are properly tuned to take full advantage of this upgrade.

Please note that this piston is not CARB approved and cannot be shipped to California. Always refer to the manufacturer's installation instructions for proper fitment and assembly procedures.