The trek fuel ex 7 29er mountain bike 2018 returns with a major capability boost with a complete redesign that incorporates more travel a more aggressive geometry and the ability to fit both 29 and 275 wheels making it the perfect go to trail bike alpha platinum aluminium is continuously cold extruded and butted at multiple points and hydroformed into sophisticated tube shapes for maximum streangth and minimum weight the straight shot downtube design creates a straight co