Trek Fuel Ex Jr - Kids bike test

Matthias Rotter

 · 06.09.2016

Trek Fuel Ex Jr - Kids bike testPhoto: Robert Niedring
Trek Fuel Ex Jr - Kids bike test
With the Fuel EX Junior, parents can kill two birds with one stone: a big bike for the junior and the comfort of 26-inch wheels.

This is because the twentyniner effect also works when jumping from 24 to 26 inches. The first point is realised by the bike's extremely small frame with a steeply sloping top tube. By comparison, the standover height of the 26" Trek is just seven millimetres higher than the 24" Transition Ripcord, for example. And the extremely upright riding position with a low saddle certainly doesn't hurt at the start of your bike career. The suspension provides 90 millimetres of travel, which our ten-year-old test rider, weighing 38 kilos, was able to make full use of. More travel is not needed for all-round use. The fork and shock can also be locked if required. The bike may look like a shrunken Fuel for adults, but the geometry and kinematics have been redeveloped for the requirements of kids. With a double crankset and a cassette with 11 to 36 teeth, the drivetrain is suitable for touring without restriction. Of course, the economical use of the front derailleur needs to be practised. Or you can start by locking one of the two chainrings using the stop screws. The only downer is the weight of 13.1 kilos, which is not quite child-friendly.


Conclusion A real trail rocket that is in no way inferior to its big Fuel brother. Rolls noticeably better than 24 inches. Children and parents will enjoy this bike for a long time.


PLUS Gear ratio suitable for touring, long service life
MINUS No quick release on the wheels, weight

Test 2016 kids bikes: Trek Fuel Ex JrPhoto: Robert NiedringTest 2016 kids bikes: Trek Fuel Ex JrThe double chainring on the Trek Fuel EX Jr ensures efficiency on tours. A plastic ring prevents the chain from jumping off.Photo: Robert NiedringThe double chainring on the Trek Fuel EX Jr ensures efficiency on tours. A plastic ring prevents the chain from jumping off.The kink in the top tube of the Trek Fuel EX Jr minimises the standover height.Photo: Robert NiedringThe kink in the top tube of the Trek Fuel EX Jr minimises the standover height.The fork of the Trek Fuel EX Jr only hardens towards the very end of its travel. Overall, the response behaviour is a little firm.Photo: BIKE MagazinThe fork of the Trek Fuel EX Jr only hardens towards the very end of its travel. Overall, the response behaviour is a little firm.Test rider David Zehentner, 10 years old, 39 kg, 145 cm: "Since I've been riding a big bike, dad has had a bad time on the trail."Photo: Robert NiedringTest rider David Zehentner, 10 years old, 39 kg, 145 cm: "Since I've been riding a big bike, dad has had a bad time on the trail."
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