Martin wrote:

Harry !

If its 10A you referring to, they aren't that bad, a little kvicker on revs than 12A.
Rotor housing on 13B = 80 mm
                          12A = 70 mm
                          10A = 60 mm
The rest is about the same as twin dizzy 12A
But...its extremely hard to find parts like rotor housings and rotors.

If you like a long stroke rotary, then look at the 13A, it was a one of, made only for the R130.

Regards
/Martin

 
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