Tecnium Segment set Ø40.25mm SegmentsYAMAHA 50 PW 50 - 1988 - 2026Ref : TE00117A / 1016334

TECNIUM Ring Set Ø40.25 mm designed for mini-bike and training motorcycle (cross) pistons. Manufactured by TECNIUM, this ring set allows for the replacement of worn rings during engine refurbishment to restore piston-cylinder sealing and limit compression leaks.

• Manufacturer reference: PSR-PASSOL-025
• Diameter: Ø 40.25 mm
• Contents: set for 1 piston
• Brand: TECNIUM
• Category: Ring (Cross universe)

An essential spare part for the maintenance of small single-cylinder engines, this ring set fits standard configurations equipped with a 40.25 mm piston. Ideal for refurbishment operations after wear or for replacement during an engine overhaul, it is particularly suitable for mini-cross users and recreational riders who wish to maintain proper sealing between the piston and cylinder.

Common compatibilities: Yamaha PW 50 (2024‑2026) and similar models equipped with a Ø40.25 mm piston (e.g., QR50). Check the piston diameter on the original part or the manufacturer's specifications before ordering to ensure perfect compatibility.