2005 Derbi GPR 125 Racing "race" Questions

i want to know how to derestrict my derbi gpr125 racing There is a video on youtube showing you how yo do this, you install a 15amp fuse under the seat...

Engine I used nos on my derbi gpr and the back wheel locked up and the engine cut out? Your engine is gone. Sound or not it's dead., Sounds like you seized the engine mate, I think its about £900

what size is a derbi gpr 125 piston seal kit? GPR125 '05 model engines have a piston of 56mm diameter Ride safe Bike-Doc Please mark this as very helpful (if it has been!!)

i cant find the battery model any were for derbi gpr 125 YTX5L-BS Got mine from ebay. http://cgi.ebay.co.uk/ws/eBayISAPI.dll?ViewItem&item=190434638024

How do I tighten my chain on my derbi gpr 125 Watch the video of the job on YouTube by clicking HERE.

wiring immobilizer wont turn off check wiring and local store