Number 9, Number 9 – Fuel EX 9 is Another Soldier in Trek’s Quiet Revolution
Review: Randy King
Photo: Trek Bicycle Co.
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I have a new squeeze. It wasn’t my choice to move on, but sometimes one member of the relationship just wants out, and the other half is left to pick up the pieces. That’s where I was when my 2007 Gary Fisher HiFi Deluxe broke in three places. Trek and my LBS, Bikes Unlimited in Lynchburg, promised to replace it under warranty. While this took longer than expected – more than two months – I won in the end, getting a 2011 Trek Fuel EX 9 frame.

Pretty to look at, fun to ride: 2011 Fuel EX 9. Photo courtesy of Trek
Onto the frame went my Fox TALAS fork, XT rear derailleur, LX front derailleur, Avid Juicy 5 brakes, Thomson seat post, Bontrager Race riser bar and stem and wheels, SPD pedals, and a new Shimano SLX crankset and arms and new Aheadset. Built up so, the bike tips the scales right at 30 pounds (13.6 KG). I would guess that in its from-the-factory kit, the Fuel EX 9 weighs around 27-28 pounds.
I was excited to get the Fuel EX 9, with its Fox DRCV RP-23 shock, which I first had ridden on a 2010 Fuel EX 9.9 and loved. The 9’s “nude aluminum” finish also hooked me. For the first time in a long time, I started dreaming about color-matching parts and how to bling out my bike. The days drug out while I waited for the word that it had arrived and been rebuilt.
Finally I got the newbie’s tires onto the trail. Bikes Unlimited, with the on-again-off-again style that plagues their work, had put the wrong air pressure in the shock, and had not test rode the bike, so the cables were not tight. My first ride was like cruising on a barcolounger. So much plush! Unfortunately it did not shift or climb so well.
I looked up the owners manual online and got the air pressure closer on the shock. Now it was an efficient climber, but some of the fun was gone. After a few rides, I left for a week in Moab, where I rode a Giant Reign 7 with the Fox DHX Air shock. I came back East, took off on my Fuel EX 9 (back from the Bike Medic shop with all the cables tightened and the bolts wrenched) and felt like I was aboard a rigid – on a 5″ travel bike. Time to use all of those knobs that festooned both my TALAS RLC and the DRCV RP-23 with Boost Valve. After fiddling with compression and slow rebound and the boost valve, I came up with settings I liked better.
It’s winter now, and my riding is more about getting outdoors and having fun, versus about training or the sheer miles. So, I like the softer settings. I took the Trek Fuel EX 9 to Lynchburg’s Peaks View Park to ride the improved trails. The plusher suspension setting survived casing the landing on Dusty Bottoms, the 32″ vertical ramp that is one of the the park’s Three Amigos (a 12″, 22″ and 32″ set of well-built ramps), and made the three-foot drop-off on Gorilla Soap trail easy to digest.
Compared to the Gary Fisher HiFi, which excelled as an epic race bike, the Fuel EX 9 has a more active suspension. A glance at their linkage designs highlights the differences. In fact, it’s marvelous how efficient the Fuel EX 9 is on climbs, given a linkage design that looks like a Kona. The extra plush and activeness in the suspension works for me, as it unleashes a bolder, more aggressive riding style. A good big mountain riding bike should act as an extension of the rider, and the less that it causes the rider to hesitate before tackling a line – whether tech climb or gnarly descent – the better the bike. Another piece of technology that works well on the Fuel EX 9 – along with the Fox DRCV shock – is the ABP, Trek’s floating pivot aimed at reducing brake jack. Brake jack was something I only noticed in its absence. I had read about it without understanding it, yet flying down rooty descents at Danville, VA’s Angler’s Ridge park, I can tell the difference in the rear suspension not stacking up under braking. It is just another piece of R&D that pays its way by not seeming to be there at all on the Fuel EX 9.
I’m looking forward to getting my style dialed-in on this new squeeze in time for May’s Pisgah Mountain Bike Adventure Race. I think the Fuel EX 9 will take the edge off the miles and bring grins on epic descents. The bike is trail-oriented. By that I mean that it is an efficient climber with suspension enough to take the edge off roots and rocks and mix it up on small drops and jumps. It is not an all-out XC race machine – a few extra pounds and the more relaxed angles would grow tiresome while sprinting or on competitive climbs. Nor would I have wanted to trade it for the Giant Reign 7 I rode in Moab – which felt so solid and confident as I dead-sailored it off of rock ledges and powered through rock gardens.
So, what’s the verdict? This is another expensive bit of fun from Trek. Like the Fuel EX 9.9 and the Remedy 8 we reviewed earlier, the Trek Fuel EX 9 rides like cheap fun, belying the science and craftsmanship that it takes to turn out a bike that can do so much so well. A complete bike is priced at more than $3,500. The technology mostly works in harmony, and gives the rider options to tune the bike to suit several styles – efficient epic racer, or plusher rough-and-ready trail bike, etc. It is definitely a big mountain riding bike, as well as being just plain fun to ride.

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