Mountain bikers just have to love the versatility of the Fuel Ex. It got a massive upgrade with the boost capability and more aggressive geometry to allow a 29" or 27.5" mid-fat tyre clearance. If you are looking for a long-travel trail bike with a XC feel, this is the bike to ride!
A full review is in the works, but my first impressions are extremely positive; by all appearances Trek has elevated the Fuel EX's performance even further. Lightning fast, and wildly fun, it picks up right where its predecessor left off without missing a beat.- PinkBike.com