I found a dealer in NJ that claims to have these factory GRP 75s. The guy I talked to said that the bore was the same but the stoke was lengthened. I know that this will definately effect the rev of the engine. A shorter stroke allows for a higher revs. Measuring the bore might do you know good. I haven't found any proof on the net that the factory even makes these. I have emailed both the UK distributor and the factory for info. I haven't recieved any yet.
Re: Questions for Derbi GPR50 owners....
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This single post is part of a larger thread. Start from the top or view this post in context.
| Subject | Written By | Posted |
|---|---|---|
| Questions for Derbi GPR50 owners....Topic by: Jericho | Jericho | 06/04/01 04:01AM |
| Re: Questions for Derbi GPR50 owners....Re: Matty | Matty | 06/27/01 01:53PM |
| Re: Questions for Derbi GPR50 owners....Re: Tony Sherriff | Tony Sherriff | 07/15/01 11:33AM |
| Re: Questions for Derbi GPR50 owners....Re: Jericho | Jericho | 07/20/01 03:41AM |
| Re: Questions for Derbi GPR50 owners....Re: septus | septus | 08/18/01 04:41PM |
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