Big Bore Cylinder Barrel Kit: Aprilia SR 50 (1997-2002) Honda CB650 Honda CB 400 F3 Super

Honda CB 400 F3 Super Four / Project Big-1 (1995)

This set of brake drum shoes have been manufactured to replace the original rear set of brake drum shoes on a Yamaha RZ250 for the years and models shown above

Ducati Monster S4R 996cc (2004-2006)

then this could be the solution

Big Bore Cylinder Barrel Kit: Aprilia SR 50 (1997-2002) Honda CB650 Honda CB 400 F3 SuperBrand new big bore cylinder barrel kit to fit: Aprilia SR 50 WWW (1997 2002). This cylinder kit is an upgrade on the original Aprilia SR 50 for the years and models shown above. The top end will go from 50cc to 70cc. This kit includes: cylinder (barrel jug) cylinder head piston kit gaskets To replace OEM cylinder: TBC Minarelli Horizontal 2T A C (Air Cooled) Engine.