Puch MAXI Airsal 70cc Cylinder Kit.
Comes with 45mm barrel, piston, gasket top set & manifold studs x 4.
This barrel has the small fins, as original MAXI (so it will look the same as a 50cc). It will fit Pedal or Kick Start Models.
You can use the small fin 60/70cc head with no decompressor with this kit on a pedal type maxi, but it will need more effort to start the bike.