2Bros Parts

PISTON KIT 11-14 BETA 4T 88.00, PROX 01.7351.C BETA 350RR, Beta RR350 '11-14 12.9:1 CR

$253.36

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Delivery to United States 5–8 business days

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Forged Piston Kit A, 88.00 mm bore STD. Compression 12.9:1. ProX Piston Kits are supplied complete with piston rings, wrist pin, and circlips. ProX pistons are precision machined on the latest CNC equipment and use a low-expansion, low-friction piston alloy. Uses an OEM style tin coating to assist the break-in process. Replacement parts. PROX RING SET 02.6251. ProX 01.7351.C.

Specifications
SKU
56-W9818.C.PX
Brand
Pro-X Racing
Availability
In Stock (2)

Fitments (12)

MakeModelYear
BETARR 3002011
BETARR 3002013
BETARR 3002014
BETARR 3002015
BETARR ENDURO 3502011
BETARR ENDURO 3502012
BETARR ENDURO 3502013
BETARR ENDURO 3502014
BETARR ENDURO 4T 3502011
BETARR ENDURO 4T 3502012
BETARR ENDURO 4T 3502013
BETARR ENDURO 4T 3502014
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
88.00mm
Variant Id
258816
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX Forged Piston Kit - 88.00 mm Bore

This ProX Forged Piston Kit is designed for optimal performance and durability. Precision machined using advanced CNC equipment, these pistons utilize a low-expansion, low-friction alloy identical to that used by major Japanese engine manufacturers. The kit includes everything needed for a complete installation: piston rings, wrist pin, and circlips.

Key Features:

  • Forged piston for enhanced strength and performance.
  • 88.00 mm bore size, standard size for specific applications.
  • Compression ratio of 12.9:1 for increased power output.
  • Includes piston rings, wrist pin, and circlips for a complete setup.
  • OEM style tin coating aids in the initial break-in process.
  • Manufactured by Pro-X Racing, known for high-quality engine components.

Note: Replacement ring set available separately: PROX RING SET 02.6251.

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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