2Bros Parts

PISTON KIT 13-21 BETA RR250 Enduro 66.40, PROX 01.7313.B

$178.70

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Delivery to United States 5–8 business days

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ProX 2-ring piston kit with a bore of 66.40mm (B. 66.35mm). This kit includes piston rings, wrist pin, and circlips. ProX pistons are precision machined using state-of-the-art CNC equipment and are made from a low-expansion, low-friction piston alloy utilized by major Japanese engine manufacturers. Features an OEM-style tin coating to aid in the break-in process. PROX 01.7313.B.

Specifications
SKU
56-W9857.B.PROX
Brand
Pro-X Racing
Availability
In Stock (4)

Fitments (13)

MakeModelYear
BETARR ENDURO 2T 2502013
BETARR ENDURO 2T 2502014
BETARR ENDURO 2T 2502015
BETARR ENDURO 2T 2502016
BETARR ENDURO 2T 2502017
BETARR ENDURO 2T 2502018
BETARR ENDURO 2T 2502019
BETARR ENDURO 2T 2502020
BETARR ENDURO 2T 2502021
BETAXTRAINER 2502018
BETAXTRAINER 2502019
BETAXTRAINER 2502020
BETAXTRAINER 2502021
General Product Group
Engine
General Product Type
Pistons & Kits
Variant Id
310408
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX 2-Ring Piston Kit

This ProX Piston Kit is engineered for optimal performance and durability. It features a precision-machined piston designed for low expansion and low friction, utilizing the same high-quality alloy preferred by major Japanese engine manufacturers. The kit includes everything needed for installation: piston rings, wrist pin, and circlips.

To ensure a smooth and efficient break-in period, the piston is treated with an OEM-style tin coating.

  • Type: 2-ring piston
  • Diameter: 66.40mm
  • Includes: Piston rings, wrist pin, and circlips
  • Material: Low-expansion, low-friction piston alloy
  • Coating: OEM-style tin coating for assisted break-in
  • Manufacturing: Precision machined on state-of-the-art CNC equipment
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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