2Bros Parts

PISTON KIT GP DOMED 54.0 B RS125 03-09, VERTEX 23105B GP HONDA

$251.54

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Delivery to United States 5–8 business days

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VERTEX UK forged piston kit 23105B for the Honda RS 125. This kit features a dome top piston, a 0.8mm flat ring, wrist pin, and two clips. All Vertex pistons are heat-treated with a T-5 or T-6 hardening and tempering cycle. This product is made in Italy. Bore size is 54.00mm [B 53.95mm]. Replacement parts include rings (53007805400), pin (711127), and clips (72071).

Specifications
SKU
56-W177.B.VERTEX
Brand
Vertex
Availability
In Stock (2)

Fitments (10)

MakeModelYear
HONDARS 1252003
HONDARS 1252004
HONDARS 1252005
HONDARS 1252006
HONDARS 1252007
HONDARS GP DOMED 1252003
HONDARS GP DOMED 1252004
HONDARS GP DOMED 1252005
HONDARS GP DOMED 1252006
HONDARS GP DOMED 1252007
General Product Group
Engine
General Product Type
Pistons & Kits
General Size
54mm
Variant Id
285053
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Vertex GP Domed Piston Kit for Honda RS125

Enhance your motorcycle's performance with this high-quality Vertex GP Domed Piston Kit. Designed as a cost-effective alternative to standard HRC pistons, this kit provides excellent value without compromising on performance.

This piston kit includes a domed piston, a single 0.8mm flat ring, a wrist pin, and two clips. The piston features a bore size of 54.00mm and a piston skirt that requires careful chamfering for optimal operation. The ring groove also benefits from chamfering, especially at the rear to accommodate the boost port.

Vertex pistons are manufactured in Italy and undergo heat treatment with a T-5 or T-6 hardening and tempering cycle for superior durability. Many Vertex pistons are fitted as Original Equipment (OE) on production bikes, attesting to their quality and reliability.

Key Features:

  • Domed piston design for enhanced performance.
  • Kit includes piston, 0.8mm flat ring, wrist pin, and circlips.
  • Piston Bore Size: 54.00mm.
  • Heat-treated with a T-5 or T-6 hardening and tempering cycle.
  • Made in Italy.
  • Designed for specific motorcycle applications.

Specifications:

  • Piston Bore Size: 54.00mm
  • Ring Specification: 0.8mm Flat Ring

Replacement Parts Available:

  • Rings: Part Number 53007805400 (requires 1)
  • Pin: Part Number 711127
  • Clips: Part Number 72071
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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