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After having gone full fat with the 27.5″ Farley back at Sea Otter, Trek thinks they can add more fun to more of their bikes with a bit of extra tire volume. So, now they are taking their popular Fuel EX trail bikes into midfat territory with a new 27.5+ iteration. The new Fuels bring bigger tires and bigger travel to the all-around trail riding platform for even more full-squish fun…

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photos courtesy of Trek

The new  Fuel EX 27.5 Plus are built around an updated frame the gets comfortable clearance for 2.8″ tires and bumps ABP travel up to 130mm, paired with 140mm forks. The new suspension gets optimized leverage ratios that benefit from the larger negative air springs on the new Fox EVOL and RockShox Deluxe shocks, allowing them to keep pressures low and supple. The bikes also use the new slightly longer metric-sized shocks which were touted earlier in the  year.

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Key to the new bikes is new version of Bontrager’s Chupacabra tires, now in 27.5″ x 2.8″, and rolling on 40mm rims. The tire aims to keep weight (and rolling resistance) low so they are quick enough to compare with the non-Plus size Fuels, but deliver big steps in extra traction and control.

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If you are still a fan of 29ers, don’t worry the 29″ Fuel EX isn’t going away, but you will be able to even run 29″ wheels and 2.4″ tires in the new Fuel EX 27.5 Plus, although it will raise the bottom bracket. At the same time Trek doesn’t recommend running standard with 27.5″ tires, as that will actually lower the BB too much and affect both handling and clearance.

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The Fuel EX 27.5 Plus will be available in an OCLV Mountain Carbon frame, and an Alpha Platinum Aluminum option, both with alloy chainstays. Both frames use the same modern trail geometry, short-ish 433mm chainstays, ISCG05 tabs, and Boost spacing. They also get a DH-style steering stop to keep your fork from bashing into the frame, full internal cable routing (including for dropper posts), and integrated downtube protector.

 

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The Fuel EX+ will come in three price points for now. The 9.8 will get the carbon frame, Fox suspension, and an XT double groupset for $5300. The 8 will get the alloy frame, Fox suspension, and a SRAM GX 1×11 for $3300, while the 5 will get the same alloy frame with Rock Shox suspension, and a Deore double for $2400. The Fuel EX 8 and 9.8 are available now, while the more affordable 5 should be ready to hit the trails in June.

TrekBikes.com

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boom
boom
5 years ago

it has more travel and can now run 29″ or 27.5+? Count me in. My Fuel EX right now absolutely rips, and this looks even better

Frank
Frank
5 years ago

Is 2.8 the MAX tire width? seems like a lot of 27.5+ tire are coming in at 3.0 or above, especially those with more aggressive tread. Might be limiting.

Haromania
Haromania
5 years ago

It will fit 3.0 tires.

Haromania
Haromania
5 years ago
Reply to  Haromania

27.5 X 3.0 that is….That is a sweet machine, Trek is just killing it this year.

Jason Miles
5 years ago

I read elsewhere that the shock size was 210 x 52.5mm. I thought metric shocks in this length were 50mm or 55mm of stroke. Isn’t the point of metric sizing to standardize the sizing?

Rman
Rman
5 years ago
Reply to  Jason Miles

Metric shocks can have stroke custom shortened 2.5 millimeters with spacers.

Birdman
Birdman
5 years ago

Very nice geometry, short chainstay, short seat tube, long reach. NICE!

Bazz
Bazz
5 years ago

Wish there was a 29+ version.

Lars V.
Lars V.
5 years ago

@Bazz: Just wait till you see the Remedy 29+… It does not have a headset at all. Just point it downwoards and crush EVERYTHING. 😀 😉

Tony
Tony
5 years ago

All metric shocks are 210x55mm, the 210x50mm version use a 5mm spacer, and this one uses a 2.5 spacer…

Tom
Tom
5 years ago

Looks sweet. For MY purposes — rugged trail riding, mostly on the ground — it might be a better choice than my Remedy. But I think I’ll give the new Bonty 29 x 2.55 tires a shot, first.

Jack
Jack
5 years ago

Anyone have a real world review on this yet? Would love to view some thoughts.

Josh
Josh
4 years ago
Reply to  Jack

I recently picked up a 2018 fuel ex8. I’m coming from a 2009 fuel ex9. This new model has tons more traction, loves to get the wheels off the ground. One thing to note is that its modern geo makes this much more fun going down than up. 66.5 ha vs 69 a couple years ago. I have failed to make it up climbs that I could a couple months back, might get it back when I feel more comfortable with the geo, but huge grin on my face coming down.

Jimmy Bond
5 years ago

I rode the bike this weekend in the Czech Republic. I was blown away. The 2.75 tyres were a lot of fun and certainly confidence inspiring. The biggest dig for me is being able to stick 29ers on it if you are doing less gravity orientated trail work. The bike is a real winner!