The 55mm PARMAKIT piston manufactured by vertex, of very high quality, is in a hard chrome domed segment, pre-ground, Ø12mm axle, lateral grease fittings, etc. Supplied with its 2 crab clips. Depending on the model, the piston is different; some have a graphite piston, others do not.
It mounts on kits :
110cc Ø55mm on 46mm stroke and 85mm rod on minarelli am6
110cc Ø55mm on 46mm stroke and 90mm rod on minarelli am6
90cc Ø55mm normal stroke 39mm on minarelli am6
110cc Ø55mm on 46mm stroke on DERBI euro 1/2
90cc Ø55mm normal stroke 40mm on DERBI euro 1/2
110cc Ø55mm on 46mm stroke on DERBI euro 3 (Piston Vertex graphite)
90cc Ø55mm normal stroke 40mm on DERBI euro 3
We have the dimensions A / B / C / D / E / F, to be selected according to the wear and the base dimension of your cylinder!