2Bros Parts

PISTON KIT 01-08 KTM50 SX 39.5, PROX 01.6012.A

$60.15

4.1 Trustpilot 99.9% positive on eBay

Delivery to United States 5–8 business days

Out of Stock

2-stroke piston kit with 39.50mm bore. Includes piston rings, wrist pin, and circlips. Precision machined using the same low-expansion, low-friction piston alloy used by major Japanese engine manufacturers. Features OEM style tin coating for break-in assistance. Replacement parts: piston rings 02.6012, piston pin 04.1233, piston clips 05.1210C. Manufacturer part number: PROX 01.6012.A. Weight: 592 grams.

Specifications
SKU
56-W803.A.PX
Brand
Pro-X Racing
Availability
Out of Stock

Fitments (71)

MakeModelYear
BETARK6 501997
BETARK6 501998
BETARK6 501999
BETARK6 502000
BETARK6 502001
BETARK6 502002
BETAST 501996
BETAST 501997
BETAST 501998
BETAST 501999
BETASUPERMOTARD 501996
BETASUPERMOTARD 501997
BETASUPERMOTARD 501998
BETASUPERMOTARD 501999
KTM50 ADVENTURE2002
KTM50 ADVENTURE2003
KTM50 ADVENTURE2004
KTM50 ADVENTURE2005
KTM50 ADVENTURE2006
KTM50 ADVENTURE2007
KTM50 ADVENTURE2008
KTM50 JR ADVENTURE2002
KTM50 JR ADVENTURE2003
KTM50 MINI ADVENTURE2002
KTM50 MINI ADVENTURE2003
KTM50 MINI ADVENTURE2004
KTM50 MINI ADVENTURE2005
KTM50 MINI ADVENTURE2006
KTM50 MINI ADVENTURE2007
KTM50 MINI ADVENTURE2008
KTM50 MINI ADVENTURE GS2002
KTM50 SR ADVENTURE2002
KTM50 SR ADVENTURE2003
KTM50 SR ADVENTURE2004
KTM50 SR ADVENTURE2005
KTM50 SR ADVENTURE2006
KTM50 SR ADVENTURE2007
KTM50 SX2001
KTM50 SX2002
KTM50 SX2003
KTM50 SX2004
KTM50 SX2005
KTM50 SX2006
KTM50 SX2007
KTM50 SX2008
KTM50 SX JR2006
KTM50 SX JR2007
KTM50 SX JR2008
KTM50 SX MINI LC2001
KTM50 SX MINI LC2002
KTM50 SX MINI LC2003
KTM50 SX MINI LC2004
KTM50 SX MINI LC2005
KTM50 SX MINI LC2006
KTM50 SX MINI LC2007
KTM50 SX MINI LC2008
KTM50 SX PRO JR2001
KTM50 SX PRO JR2002
KTM50 SX PRO JR2003
KTM50 SX PRO JR2004
KTM50 SX PRO JR2005
KTM50 SX PRO SR2001
KTM50 SX PRO SR2002
KTM50 SX PRO SR2003
KTM50 SX PRO SR2004
KTM50 SX PRO SR2005
KTM50 SXR ADVENTURE2003
KTM50 SXR ADVENTURE2004
KTM50 SXR ADVENTURE2005
KTM50 SXR ADVENTURE2006
KTM50 SXR ADVENTURE2007
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
39.5mm
Variant Id
257818
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

ProX Piston Kit - 39.50mm Bore

This ProX Piston Kit is designed for a 39.50mm bore and comes ready for installation. It includes all necessary components for a complete engine rebuild, ensuring your motorcycle performs at its best.

ProX pistons are manufactured using advanced CNC equipment, utilizing a premium low-expansion, low-friction alloy favored by major Japanese engine manufacturers. This ensures optimal performance and durability.

The kit features an OEM-style tin coating that aids in the crucial break-in process when you first start your engine, promoting longevity and smooth operation from the outset.

Key Features:

  • Complete 2-stroke piston kit
  • Precision machined for exact fitment
  • Low-expansion, low-friction piston alloy
  • OEM-style tin coating for enhanced break-in
  • Includes piston rings, wrist pin, and circlips

Replacement Parts Included:

  • Piston Rings
  • Piston Pin
  • Piston Clips
Before you buy

QUESTIONS? JUST ASK

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

Call us+44 330 133 3748
Email us[email protected]

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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