Motorcycle Engine Cylinder Kit With Piston Pin Gaskets 57mm Bore for Benelli EFI Engine TNT150 TNT150i 157FMJ-3 matched Fit For Benelli TNT150 TNT150i 157FMJ-3 electronic fuel injection engine with standard 57mm cylinder bore size Complete all in one set including cylinder barrel piston piston pin full assembly gaskets for one stop engine overhaul replacement Straight bolt on installation; no or extra required during engine rebuild; align with crankshaft head crankcase cast cylinder liner with anti-wear inner wall; matched forged piston sealed gaskets reduce oil leakage extend engine life Strict OEM dimensional tolerance control; restore compression ratio to fix power loss hard starting excessive issues