Cylinder kit Sachs 41mm S4, Ported and machined by Tiveden engine, 9 hp

The S4 cylinder for Sachs is a completely newly developed cylinder with reinforcements in all places that were previously weak. Bench tested to over 9hp/DIN. The cylinder is ported by Tiveden's engine and engraved with serial number. Can be drilled up to 42 mm if the accident should occur. The cylinder has a good register and fits all exhaust systems on the market. But for maximum power we recommend Sachs Jamarcol, Fuego or RP 2 for S4 (art.nr 29189) It is possible to use an original 28mm MCB exhaust system with a long bend, the maximum power will then be slightly lower (about 5hp) The bench runs are performed with Bing 17mm carburetor art.no. 16389, cylinder head from Falkman Parts art.no. 16348 and switchless ignition system. Supplied with Barikit piston. Internal width for needle bearing ~17mm