Big Bore Cylinder Barrel Kit: Aprilia SR 50 (1997-2002) Honda CB650 then this could be the

then this could be the solution

To replace OEM: 351-83550-01 / 2L0-83550-00 / 4L0-83550-00

The shockers have 335mm pin/pin mounting points and a 70mm length shroud

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

Big Bore Cylinder Barrel Kit: Aprilia SR 50 (1997-2002) Honda CB650 then this could be theBrand 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.