Found this at SCK Motor (the best workshop which care for your bikes).
Modification specs:
Engine base: Yamaha 135LC
Engine Head: Big valve ported and polished (22 intake: 19 exhaust)
Engine block: X1R 65mm
Carburation: 34mm UMA Racing
Sprocket: KMC 415H 14 / 32T
CDI: BRT Imax Programmable Remote CDI
Tyre: Front/ Rear: 45/90 17″ (very ‘nipis’)
Exhaust: Custom made short type
16 more pictures after the jump