So far, this Hobbit has crossed the finish line first in stock class (mopedGP 2015 and tomahawk Cup 2014) I can't believe this $180 hobbit has pulled this off. Changes from last year: new tires and rear shocks and new pipe. Stock cylinder has been decked. I raised the exhause port about 2-3mm. And cut out a fat base gasket (derbi base gasket) I had 2 stock cylinders decked. last years cylinder seized like 10 times on a ride with tyler. ...amsoil Saber at 300:1 (we basically ran out of oil...) The current cylinder has less aggressive port work from one night of dremeling. basically a rush job before a practice day at the track. Stock variator is not visibly notched, but will fully variate. I spent more time on tweaking the ramp plate and variator to fit 1/2 inch copper pipe as weights. Next year i might put on new front forks for better traction.