05 Derbi GPR 50 Racing discussion forum: RE: Flat Battry
Title
RE: Flat Battry 
Entered by
mareks 
Date
2009-10-21 20:01:23 
the batterty sound like your relay has has gone it should be just under handlebars, like litle metal thing that charges battery when you go along that might be a reason, my derbi does 110 km/h and all i done to it is put race exhaust on it makes it sound nice and improves everything:D if you derestrict it it will do about 80 km/h 
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