Big Bore Cylinder Barrel Kit: Adly TB 50 (2008-2010) Yamaha YZ426 Yamaha DT 50 X (Supermotard)

Yamaha DT 50 X (Supermotard) (2007-2008)

To replace OEM: 30530-465-771

Aprilia RS 125 Tuono (1999-2005)

Honda NX 650 Dominator (1988-1999)

If you're having spark issues with your YFM600 then it's a no brainer to get your coil upgraded

Big Bore Cylinder Barrel Kit: Adly TB 50 (2008-2010) Yamaha YZ426 Yamaha DT 50 X (Supermotard)Brand new big bore cylinder barrel kit to fit: Adly TB 50 Thunderbike (2008 2010). This cylinder kit is an upgrade on the original Adly TB 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.