D3T DISTRIBUTION SAS ("We"), along with our Partners, use Cookies and Trackers to ensure the proper functioning of this website, to carry out audience measurements, to offer you personalized advertising and tailored offers, or to share content with you via social networks. Your data is shared with 10 of our Partners. We retain your choices for 6 months. You can change your mind at any time by clicking on "Set my Cookies" in the links at the bottom of the page. For more information, please consult our Cookie Policy.
List of our partners
30 days returnsHelp and contacts
en
EN - EUR
Motorbike
Log in
0Basket
Product photos

Non-contractual photo

Ref : VER00111A / 1095093004
Vertex

Vertex Casted Piston kit

Recommended retail price: 135,66 €122,00 €

Compatibility

Check that this part fits your motorcycle

Estimating delivery…

Features

VERTEX Cast Piston (manufacturer part number 21725D) — Designed for small 125cc twins from the 80s-90s, this cast aluminum piston offers a replacement part that faithfully adheres to original dimensions for engine refurbishment. Ideal for restoring a top-end or replacing a worn piston, it maintains the original configuration with standard compression.

  • Brand: VERTEX
  • Type: cast aluminum piston
  • Bore Diameter: 56.00 mm
  • Piston Diameter: Ø 55.990 mm (55.99 mm)
  • Oversize Letter: D
  • Compression: standard

This piston is made of aluminum, a material favored for its strength-to-weight ratio and its ability to dissipate heat. The precise finish and dimensions facilitate fitting into the cylinder sleeve for a clean installation. Suitable for an engine overhaul with the replacement of rings, pin, and standard checks (piston/ring clearance, cylindricity, bore).

Compatibility (examples):

  • HONDA MTX 125 RW (1989-1990)
  • HONDA NSR 125 R (JC20) (1989)

Always check the dimensions of your cylinder and the oversize letter before installation. For a lasting result, replace rings and pin if necessary and adhere to the manufacturer's torque and break-in recommendations.