Description Report Item 41mm Engine Cylinder Barrel Piston Gasket Big Bore Kit 60cc For Simson S51, SR50, KR51, KR51/2 Schwalbe Features: If your cylinder blows through, the compression is too low, or even a piston seizure has occurred, then this kit is exactly the right thing for you to upgrade.Kit includes cylinder, piston, rings, pin, clips & end gasket kit (you get exactly what is pictured).Kit is for big bore size - 41mm, 12mm steel piston pin, due to the larger piston diameter an increased performance is achieved.The cylinder kit 60cc help to noticeably better pull from the lower speed ranges.Boring of the engine case is not necessary.This kit is excellent as a low-cost replacement for defects in the cylinder.Specifications: Condition: Aftermarket 100% Brand Quantity: 1 Set Material: Aluminum Engine type: 2 stroke Displacement: 60cc Bore Size: 41mm Pin Diameter: 12mm suitable for Simson types: S51, SR50, KR51/2 Fits Models: Fits all Simson Moped, Mokick, scooter with 3 and 4 gear engines: KR50 Schwalbe [KRO RH50] KR51 - KR51/1 Schwalbe [M53, M53/1] KR51/2 Schwalbe [M531, M541] S50 [M53/2] S51 / S51 [M531, M541, M542] S53 / S53 [M543] SD50 Albatros [M543] SR 50 Automatik (96-01) [Morini] SR 50 [M531, M533, M541, M542, M543] (Compatibility Chart is for Reference ONLY!!!) (Please Compare with Your faulty unit and the image we provided to Decide Fitment) Package Includes: 1x 41mm Cylinder 60cc 1x Piston 1x Piston Ring Set 1x Wristpin 1x Circlip(2) 1x Cylinder Base Gasket 1x Cylinder Head Gasket Note: Carefully compare to your old parts to be sure this is the correct part for your machine.The product on offer is an accessory or spare part and thus is not an product of the vehicle manufacturer.The name of the vehicle manufacturer is stated only as an indication of the determination of the product being offered as an accessory or spare part, to clarify, for which vehicle the product on offer Fits.