New OEM 250R Cylinders

[Beerside]

On the bike bandit web site they have available new cylinders but they have 2 different versions, cylinder "A" and Cylinder "B". The "A" is not available and has a different price. Does anyone know what the differece is between these 2 cylinders??

[mudbogger]

I would imagine the bore size might be the reason, it may be a thousand bigger, but that's just a thought.The stock OEM piston and rings would work in, just might leave a larger ring gap then say a "A" to a "B" JUG.

[Dirtcrasher]

I think I'd call them if I were you...............

I can't see one being a larger bore unless intended but I can see the intake ports being different or the bridged exhaust different.