Can the Trek Fuel EX 2026 Actually Climb? Honest Assessment

With 140mm out back and a 150mm fork, the Fuel EX looks like it's crept firmly into the "trail" category. The question everyone asks: does it still pedal uphill like a trail bike should?

The Short Answer

Yes, but with caveats. The Fuel EX climbs remarkably well for its travel, but it's not an XC bike and never pretends to be.

What Makes It Climb Well

Geometry

The 77° effective seat angle puts your weight over the pedals properly. You're not fighting the bike on steep fire roads or technical ascents. This is a massive improvement over Fuel EX bikes from even three years ago.

Suspension Platform

Trek's Mino Link system in the low-leverage-ratio position gives excellent pedalling efficiency. The rear end doesn't bob excessively, even without locking it out.

Weight

At 13.8kg for the mid-range build, it's competitive. Not featherweight, but light enough that you won't dread long climbs.

Where It Struggles

Sustained Road Climbs

If your local rides involve 30-minute fire road grinds, you'll notice the difference vs a shorter-travel bike. The rotating mass and slightly relaxed geometry add up over time.

Very Steep Technical Climbs

The 150mm fork and slack-ish head angle can make the front feel light on extremely steep rocky climbs. Body positioning helps, but a shorter-travel bike with steeper geometry has a natural advantage here.

Tips for Better Climbing

1. Use the lock-out: The rear shock lock-out exists for a reason. Use it on smooth climbs.
2. Tyre choice matters: Running a faster-rolling rear tyre (like a Maxxis Dissector) saves real watts over a full Minion DHR II.
3. Dropper down slightly: Dropping your post 30-40mm on long climbs improves pedalling position without the post interfering.
4. Shift early: The wide-range cassette means you can spin efficiently up anything if you don't ego yourself into grinding.

Comparison

The Verdict

The Fuel EX is the best all-round trail bike Trek makes precisely because it balances climbing with descending so well. If 80% of your riding involves pedalling to the top and riding back down, this is the bike. If you want maximum climbing efficiency above all else, look at something with 120mm or less.

Deciding between the Fuel EX and Slash? Read our head-to-head comparison.