Does anyone out there know of suppliers of performance parts for the Derbi GPR50 & 75 ? Cycle Imports of Florida seem to be the main one, but are there any others?
I would be particularly interested in a supplier for a race cylynder for the GPR 75. (the cylinder is apparently different to that of the GPR50 kit due to a different stroke on the GPR75 engine. Can anyone confirm this?)
Thanks, TONY.