OzVMX Forum

Marque Remarks => Spaniards (Bultaco, Ossa, Montesa etc) => Topic started by: cappra on March 14, 2009, 05:20:57 pm

Title: Ossa bore sizes
Post by: cappra on March 14, 2009, 05:20:57 pm

Can someone tell me the standard bore size of a 74 Phantom 250?

                                               Thanks, Jared

Title: Re: Ossa bore sizes
Post by: JC on March 14, 2009, 05:51:15 pm

72mm

Title: Re: Ossa bore sizes
Post by: 360DUDE on March 20, 2009, 08:10:21 pm

I used to have an Ossa piston in my H6 250,
Lyall couldn't get the right one, so he got me a Tarabusi to suit an Ossa,
I lost a heap of meat off the cylinder on the rebore for it to fit, also had to put a window in the side of the piston but it worked just great, had no probs
But sorry don't remember sizes