Moto GP Racer
Join Date: May 2010
Location: Rochester, ny
Thanked 600 Times in 476 Posts
Feedback Score: 2 reviews
Ancient suspension? You mean standard telescopic forks. How much better do you guys really think your >factory< usd inverted forks are from the factory standard forks from 03-04 in less than a 5 year span?... Probably a LOT BETTER huh..lol Let alone riding on the street?
The difference in unsprung weight is negligible considering the engineers balance the weight ratios to best suit each model, they are optimized at the factory with all stock components. Also, rigidity on a (cast aluminum frame) with different pertaining geometries to both frames and suspension systems is incomparable. This is why putting a set of newer forks on a 03 doesn't make any sense, because to gain any actual benefit from the oem set up, you'd literally have to adjust the balancing weight ratios from those usd inverted forks which I can guarantee nobody on this forum has done. It's not the same thing as purchasing a set of aftermarket forks specifically made for that specific model either.
Finally, for someone in the 155 lb range, the 45.0 mm hmas cartridge fork is an awesome set of forks. Add some ohlins springs and They perform easily just as good as as a tuned set of usd without question. The 03-04 still has the same amount of travel too (119mm) as the 05-06 forks.