VHM Piston Kit ref. APTM08521702 for TM RACING MX 85 2013-2025

VHM offers this piston kit for TM RACING MX 85 2013-2025. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.

Why replace the piston?

The benefits:

• Restore compression, power and easy starting.
• A piston of the right size keeps the intended clearance in the cylinder: less noise and less oil consumption.
• A new piston with rings, pin and clips: nothing to reuse from the old one.

When should you replace the piston on your TM RACING MX 85?

Harder starting, loss of power, blue smoke, oil consumption or a knock when cold: these are the signs of a tired top end.

No manufacturer hour figure for this model. Cross-Mania guideline: compression check every 15 h in hard use and every 30 h for leisure.

Specifications and fitting tips

• Manufacturer part numbers: APTM08521702B (B), APTM08521702C (C), APTM08521702D (D)

Available in several sizes: choose the one that matches your cylinder (stamped size or measured bore). Diameters: B = 47.86 mm, C = 47.87 mm, D = 47.88 mm.

Spare parts and items to plan

• Top-end gasket kit : VHM SK33000.VITON · VHM SK33000
• Spark plug : NGK
• Coolant : MOTUL 1 L · MOTUL 20 L
• 2-stroke oil : LIQUI MOLY 1 L · MOTUL 1 L

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Fits:
TM RACING MX 85 2025
TM RACING MX 85 2024
TM RACING MX 85 2023
TM RACING MX 85 2022
TM RACING MX 85 2021
TM RACING MX 85 2020
TM RACING MX 85 2019
TM RACING MX 85 2018
TM RACING MX 85 2017
TM RACING MX 85 2016
TM RACING MX 85 2015
TM RACING MX 85 2014
TM RACING MX 85 2013