The Top Fuel has been a staple in Trek’s line-up for many years now and its target market has always been those XC racers and enthusiasts wanting a full suspension option. However, the development of the Supercalibre as Trek’s pre-eminent XC race weapon has given the Wisconsin-based brand room to ex- pand the Top Fuel’s horizons and push it into the hotly contested, ‘downcountry’ category.