Big Bore Cylinder Barrel Kit: Aprilia Area 51 (1998-2003) Kawasaki ZR-7S Yamaha RD 350 YPVS (LC2)

Yamaha RD 350 YPVS (LC2) (1983-1985)

Suzuki GP 100 E (1983)

the bottom is 10mm (You may need to change these to the required sizes)

Yamaha GTS 1000 A (1993-1996)

They will replace top bearing 92116-1067 and bottom bearing 92116-1069 on a ZZR 1100 / ZX 1100

Big Bore Cylinder Barrel Kit: Aprilia Area 51 (1998-2003) Kawasaki ZR-7S Yamaha RD 350 YPVS (LC2)Brand new big bore cylinder barrel kit to fit: Aprilia Area 51 (1998 2003). This cylinder kit has been manufactured to upgrade the original top end on an Aprilia Area 51 to 70cc for the years and models shown above. The kit includes the cylinder barrel jug, head, piston kit and gaskets. To upgrade from 50cc to 70cc.