Cylinder, Puch Monza/Montana 40/12mm S1 - Ported and machined by Tiveden engine 5.4 hp

Very well made aluminum / nikasil 60cc ported by Tivedens Motor. 40mm piston, 12mm piston bolt, gaskets etc as shown in the picture are included. Have driven this this summer on a Puch Monza 4 speed. 13 drive front, original rear, Bing 17mm and a regular Jamarcol silencer. 83km / h on GPS on my moped, no guarantees that this will be the result on everyone of course. Can certainly get more out with, for example, Dellorto 21 and more efficient muffler, but very fun to drive. Bench run with the above combination to 5.4hp on the rear wheel. Feel free to use top with article no. 16016, we did. Suitable piston ring is art.nr18565 Suitable piston is art.nr 23274