Trek Stache 7 29+ Review

Trek Stache 7

BIKE: Trek Stache 7 29+ 17.5 PRICE: $2600
TRAIL: Carol Canyon & Ridge.  Sedona, Arizona

In recent years the bike industry has introduced new wheel sizes back to back, sometimes confusing consumers what to choose for their use.  The standard wheel size was set to three options, the classic 26″ and 29″ wheel and the most recent 27.5″ wheel sizes.

As one starts to get comfortable and has dialed-in their bike, it seems the industry has yet again thrown at us two new standards for consumers to play with: the 27.5″ plus and 29″ plus. Basically, bigger sized or fatter tires on each respective wheel.

As for most new concepts, rumors travel fast, and it s always better to test and decide for yourself. I had the opportunity to ride the Trek Stache 7 29″+ hard tail, a 2600$ complete bike.

Trek Stache 7 Trek Stache 7

The head angle of the bike is fairly steep and the chainstays are short with 420mm on the big wheel size. It’s built with wide bars, 1×11, avid brakes, and Chupacabra 3.0 tires. It actually felt comfortable out of the box, however, I would have traded the stem for a 50mm if it were my bike. The point of this test ride was more about getting a feel for those bigger tires and the way it rides rather than going into component details.

With such big volume tire, the recommended pressure goes as low as 10psi. That’s half of what I run in my 2.4 tires!  I was told that 14 psi was a bit too much as it might feel bouncy, so I started with 12psi.

Trek Stache 7

Out of the gate, the bike rolls very well on pavement.  I’m used to 29er wheels and it doesn’t feel much different. To get a feel for the rebound on those massive tires, I went up and down the curbs along the road. On trail it’s immediately shocking how well it filters every rock and brings a comfort to the ride, yet I could tell its a hard tail as the bounce of the rear wheel is still there.

I climbed straight up the rockier lines to feel the capability of monster trucking.  The grip is impressive even on loose gravel or slow step up moves, but the front wheel wanted to lift on the steepest sections. With so much traction in the back and with the shorter chain stays, I was pulling unexpected wheelies on the trail which happened a few times while leaning into a turn and subsequently threw me off.

Time to go down!  The Ridge trail is a decent mix of fast, flowing (for Sedona) desert single track with a few rock gardens and tight turns.

The bike feels very stable at speed and the grip is good on the open turns. When turning tightly, there was a lag until I was truly leaning-in.  Those tires are so big that I needed to adjust my timing to compensate so much tire to roll on edge.  It gave me the impression of carving with fat powder skis on the groomer.  It just doesn’t feel as quick.

I did another up and down in the same area, adjusting the tire pressure to 9psi.  I wanted to see if I could feel the tires flexing or rolling under pressure but they didn’t. Even at that low pressure, I didn’t feel the tire would roll off the rim.  The comfort was a bit improved and the grip still impressive.

Trek Stache 7

Going over rocks is a no-brainer, just pick your line and pedal! The bike wasn’t slow or sluggish for pedaling or sprinting, which is a good surprise.  Those tires are actually not that heavy, at about 880 grams per tire. Like any other 29er, the stiffness of the wheel has a big effect of how the bike rides, so it will be something to keep in mind.

Overall, I would say it was an interesting experience.  Revolutionary, I’m not sure. For racing, or going fast, I don’t think it’s where I want to go.  For a novice on the trail, it’s a great tool for assisting over the rocks safely and comfortably, feeling secure with the tire’s grip. Im curious to try a full suspension version, maybe on the 27.5 plus next time, and see how fast I can get it going!

Review by Alex Petitdemange

Alex Petitdemange is an enduro racer from Annecy, France now living and training in Sedona, AZ. He raced as a XC JR and U25 pro for 5 seasons while mixing it up with some moto. After 9 years with no racing he jumped back into the sport while living in Moab, Utah and finished well enough for a podium position and was hooked back into racing as a pro in enduro.

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