2Bros Parts

PISTON KIT 04-07 CRF250R 78 HC, PROX 01.1339.B HI COMP 13.5:1

$224.42Only 1 left

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PISTON KIT 78.00mm HIGH COMPRESSION 13.5:1. ProX pistons are precision machined on CNC equipment using a low-expansion, low-friction piston alloy. ProX Piston Kits are a first-class solution to replace the original piston. Most ProX pistons come with a coating. OEM style tin coated pistons assist the wear in process. A new skirt coating assists the wear in process and helps reduce friction. The black coating is made from a delicate mix of materials and will increase performance. Replacement part. PROX RING SET 02.1335. Includes piston, rings, pin, and circlips.

Specifications
SKU
56-W4829.B.PXHC
Brand
Pro-X Racing
Availability
In Stock (1)

Fitments (20)

MakeModelYear
HONDACRF 250R2004
HONDACRF 250R2005
HONDACRF 250R2006
HONDACRF 250R2007
HONDACRF 250R2008
HONDACRF 250R2009
HONDACRF 250X2004
HONDACRF 250X2005
HONDACRF 250X2006
HONDACRF 250X2007
HONDACRF 250X2008
HONDACRF 250X2009
HONDACRF 250X2010
HONDACRF 250X2011
HONDACRF 250X2012
HONDACRF 250X2013
HONDACRF 250X2014
HONDACRF 250X2015
HONDACRF 250X2016
HONDACRF 250X2017
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
78mm
Variant Id
256199
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX High Compression Piston Kit - 78.00mm Bore

Upgrade your engine's performance with this ProX High Compression Piston Kit. Designed for precision and durability, this kit features a 78.00mm bore and a 13.5:1 compression ratio, delivering a significant boost in power and responsiveness.

ProX pistons are manufactured using state-of-the-art CNC equipment and utilize the same low-expansion, low-friction alloy trusted by major Japanese engine manufacturers. This ensures a perfect fit and exceptional longevity for your motorcycle, scooter, moped, ATV, or personal watercraft.

This piston kit includes advanced coatings designed to optimize performance and durability:

  • OEM Style Tin Coating: Aids in the initial wear-in process, ensuring a smooth break-in period.
  • New Skirt Coating: Not only assists in wear-in but also significantly reduces friction for increased performance after the initial break-in. This advanced black coating is formulated to enhance overall engine efficiency.

Key Features:

  • Bore Size: 78.00mm
  • Compression Ratio: 13.5:1 (High Compression)
  • Material: Low-expansion, low-friction alloy
  • Manufacturing: Precision CNC machined
  • Coating: Includes wear-in and friction-reducing skirt coatings for enhanced performance and longevity.
  • Replacement Part: Designed as a high-quality replacement for original pistons.

Note: Replacement ring set part number is PROX RING SET 02.1335.

Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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