Derbi Senda Airsal 70cc Montage & Testdrive

Please note: our Instagram name has changed to bikersambition
I gained around 12 kmh top speed and a lot of torque
Geared 14 : 52 (previous with 50cc 12 : 52)
71,2cc Airsal (47,6mm)
Everything accept the cilinder is stock.
On my Derbi Senda X-Treme Limited edition 2014 (Yellow edition)
Music: • Y&V - Lune | Electroni...