The handling of a dirt track bike is incredible. The low center of gravity, giant contact patches and smooth
offers up a great recipe for fun. Learning to slide is a unique, amazing feeling.
The forks came from a Yamaha R6 sport b
pavement, these forks have seen a lot dir
nicer fit and finish than from the Hond for Jack, he had a lot of bike customiz from owning Big Minis. Jack estimate bike to be about 10 grand, but, in trut been twice as much without his indus We had so much fun pretending to that we immediately started making p own. Luckily, a basic dirt tracker is a t easier to build than Jack Phinn’s fram to try your hand at dirt track racing, g www.southerncaliforniaflattrack.com. ;
twisting the throttle and controlling your body weight. Once you get it pitched, which is the easy part, you have to find the perfect balance to keep it sliding. Oh yeah, you have to do all of this without a front brake. The lack of the front brake wasn’t a big deal, because we never got out of second gear on the CRF450 (although it should be noted that the countershaft sprocket had two more teeth on it than stock). After we floundered around for a while, Jack Phinn brought out an additional bike for us to test. It was a CRF250 with modified suspension, dirt track wheels, a low pipe and some internal motor work. As flat track neophytes, we aren’t really qualified to make too many judgments about the performance of these bikes, but we definitely felt some differences between the stock framed CRF250 and the CRF450 framer. Jack’s CRF450 was faster and the rear tire was easier to break loose, but it was more difficult to put into a slide—although once in a slide, it was easier to keep there. We were very inconsistent in keeping a slide going all the way through the corners. The 250F was 3 inches shorter than stock, and Jack’s 450 was about 2 inches shorter than the 250F. Conversely, the handling of Jack’s CRF450 made it feel longer to us. In retrospect, this feeling was probably more angular mass, as the bike rotates out of a slide. CONCLUSION: GETTING THE BUG Jack Phinn’s CRF450 dirt track bike is the product of a full year of toil. The bike began life as a 2006 CRF450 and was transformed into a flat tracker with an even