Yeh I would agree with Clarky here, most of the track is downhill you shouldn't have a problem. The pedally bit will suck but thats all mountain for you. Drop down to skinnier tyres with that amount of travel you should be able to run 2.1's with high preasure, you'll be surpised with the difference. Young Lochy flys down that hill on his 24" that weighs more than my Yeti 303 and he is only 10 or 11, so you should have no excuse. But then again it's not all about winning, it's mainly how much you can bag out Risso isn't it.