Trek Fuel EX 9.8 29 in the BIKE test

Christoph Listmann

 · 24.02.2016

Trek Fuel EX 9.8 29 in the BIKE testPhoto: Georg Grieshaber
Trek Fuel EX 9.8 29 in the BIKE test
Before the fun begins, you're spoilt for choice. Namely, which wheel size to choose. Trek offers the Fuel EX with identical equipment in 29 or 27.5 inches.

We ordered the 29er version for the test because it fits better into the test group. The strong dollar has left its mark on both versions, with the price rising from 4499 to 4699 euros. In return, you get a brightly painted full carbon frame with a very effective rear triangle thanks to the Fox RE:aktiv shock. The trail mode is suitable for almost all riding situations. Indications of riding fun are the long fork, the wide rims and the dropper post. It is astonishing how sluggish the bike is on the climbs - all testers rode the slowest sector time. Wheel weight and tyre compound could be to blame. On the other hand, the tyres contribute to the fact that all testers beamed downhill with the Fuel EX into a different sphere. Man, does this bike go downhill!


Conclusion: flashy, expensive singletrail toy, in a different league downhill. For serious marathon use, you have to tweak the wheels.


PLUS Telescopic support, five frame sizes, well-protected frame, 40-year guarantee
MINUS Comparatively sluggish (faster tyres would help)


The alternative Trek gives the customer a choice, offering the same bike with 27.5-inch wheels. The Fuel EX 9.8 650B also costs € 4699 after the price increase. Also rides great - a little more manoeuvrable.

  A 120 mm fork, as on Centurion, Marin, Merida and Trek, increases the range of use and provides more safety and reserves on the downhill.Photo: Georg Grieshaber A 120 mm fork, as on Centurion, Marin, Merida and Trek, increases the range of use and provides more safety and reserves on the downhill.  Test 2015 Marathon Fullys: Trek Fuel EX 9.8 29Photo: BIKE Magazin Test 2015 Marathon Fullys: Trek Fuel EX 9.8 29  You can tell that you're using the full travel at the rear by the flat characteristic curve. Tough riders will miss some end progression on the Trek Fuel.Photo: BIKE Magazin You can tell that you're using the full travel at the rear by the flat characteristic curve. Tough riders will miss some end progression on the Trek Fuel.
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