2Bros Parts

PISTON KIT 04-07 CRF250R 78.00, PROX 01.1338.B 04-17 CRF250X

$209.12Only 1 left

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Delivery to United States 5–8 business days

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ProX pistons are precision machined on CNC equipment using a low-expansion, low-friction piston alloy identical to that used by major Japanese engine manufacturers. This Piston Kit is a solution to replace the original piston. Most ProX pistons come with a special coating. OEM style tin coated pistons assist the wear-in process after initial startup. A new skirt coating reduces friction after wear-in, increasing performance. This kit includes: PROX RING SET 02.1335, PROX PISTON PIN 04.1641.5, PROX CLIPS 05.1612. 78.00mm STD compression 12.9:1.

Specifications
SKU
56-W4829.B.PX
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
256198
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX Piston Kit - 78.00mm Standard Compression 12.9:1

Enhance your motorcycle's performance with this high-quality ProX Piston Kit. Precision-machined using the latest CNC equipment, this piston kit is designed to be a premium replacement for your original piston.

Key Features:

  • Diameter: 78.00mm
  • Compression Ratio: 12.9:1 (Standard)
  • Material: Low-expansion, low-friction piston alloy, the same used by major Japanese engine manufacturers.
  • Coated for Ultimate Performance: Features a special skirt coating that assists the break-in process and reduces friction after wear-in, contributing to increased performance.
  • OEM Style: Designed as a direct replacement for original pistons.

This ProX Piston Kit is a first-class solution for restoring or upgrading your engine.

Replacement Parts Available:

  • ProX Ring Set
  • ProX Piston Pin
  • ProX Clips
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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