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WOSSNER offers this piston kit for TM RACING MX 85 2008-2018. The piston slides in the cylinder and takes the force of the air-fuel combustion, passing it to the connecting rod and crankshaft.
Instead of simply being cast, a forged piston is hot-pressed under very high pressure and then machined: its metal is denser and free of air pockets.
Wössner has forged its own pistons since 1994: Molykote-coated skirt to reduce friction and ease running-in, kit supplied complete with rings, pin and clips.
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.
Available in several sizes: choose the one that matches your cylinder (stamped size or measured bore). Diameters: A = 47.90 mm, C = 47.92 mm.
Cross-Mania tip: Measure the cylinder bore before ordering: the piston must match your cylinder size. Follow the manufacturer's break-in procedure and replace the top-end gaskets at the same time.
Check the exact model and year of your bike in the list below before ordering.
Fits:
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
TM RACING MX 85 2012
TM RACING MX 85 2011
TM RACING MX 85 2010
TM RACING MX 85 2009
TM RACING MX 85 2008
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