This is my first Derbi and it was fun learning about and building a new engine. 0 - 50mph in just a city block with plenty of power to lift the front wheel. Top speed is 60mph (depending on gearing). Temps hang around 320-360. This thing's off the line acceleration is out of this world, it's VERY quick. -Lots of porting (case match, open intake on case, open exhaust, widen transfers, cut cylinder skirt cuz it covered half the intake) -Cut window on reed block, now a single .4 reed Malossi reed -Stock 6 roller, 3 DR slider weights (idk the weight) -Stock rear pulley, Yellow contra (sometimes I throw the amish gold in there for serious city blasting) -19mm MK intake -Malossi red clutch springs -HPI pullstart plate, NO STARTER CLUTCHES!!! -14t front sprocket -Heindenau 3" tires -12v 35w dual headlight fairing -Pedal mode delete -TJT brake pads -No air filter, phbg V stack Video of me racing this bike back when it was a little 65cc airsal. 2015 NEMA 75cc variated class, 1st place: https://youtu.be/hIloAbetFwI
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