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2017 Specialized

Fuse Comp 6Fattie

A 27.5″ aluminum frame hardtail trail bike with upper mid-range components.
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FrameAluminum
SuspensionHardtail, 120mm
ForkManitou Machete
Wheels27.5″ Aluminum
Drivetrain1 × 11
GroupsetNX
BrakesTRP Hydraulic Disc
SeatpostDropper
Where to Buy
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Insights
Ride Feel

Based on frame geometry and build specs.

Terrain
easyextreme
Handling
nimblestable
Fuse Comp 6Fattie
Other Trail bikes
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

21 mph

Fuse Comp 6Fattie

26 mph

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Highest gear

(descending)

Reviews

Summary

The Specialized Fuse is a versatile and fun trail hardtail that combines fat bike-like traction with trail bike handling, making it a unique and playful ride. Its modern geometry and plus-size tires offer a comfortable and confident ride, though some reviews note the tires can be sluggish on climbs. The bike is praised for its snappy, lively frame and well-thought-out features like internal cable routing and SWAT storage, but some components like the dropper post and fork receive mixed feedback.

Pros
  • Combines trail bike nimbleness with near fat bike traction

  • Stiff and light frame providing a snappy, lively ride

  • Modern trail geometry and playful handling

  • Well spec'd and budget friendly

  • SWAT frame storage and tools are well designed and useful

Cons
  • 6Fattie tires are a little sluggish compared with normal 2.3-inch-wide rubber

  • Press-fit bottom-bracket shell

  • TransX dropper requires a crazy amount of weight to drop it all the way down

  • Component spec underwhelming for the price

  • High volume 27.5+ tires tend to bob a bit under hard pedalling

Key Quotes
The Fuse climbs incredibly well.
BIKE Magazine logoBIKE Magazine
I didn’t expect to be this smitten over a hardtail, but I’ve been all grins for the last two months on the 27.5+ Fuse.
Bikerumor logoBikerumor
The Specialized Fuse Expert 6Fattie is a monster-tyred trail machine that soaks up the bumps and is ideal for high-mileage off-road missions.
Cyclist logoCyclist
Hardtails aren’t dead. Not by a long shot.
MTBR logoMTBR

Feedback?

View all reviews

Cyclist
Specialized Fuse Expert 6Fattie review

Aug 2017 · Joseph Delves

A monster-tyred trail machine that's ideal for high-mileage off-road missions

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BikeRadar
Specialized Fuse Expert Carbon 6Fattie first ride review

Mar 2017 · Guy Kesteven

2kg complete bike weight is comparable with the other similarly priced alloy plus bikes we’ve tested though and the component spec is a little underwhelming for the price. . .

Read Review

Bikerumor
Long Term Review: Specialized Fuse Expert Carbon 6Fattie mountain bike

Feb 2017 · John Herron

Specialized has peppered it’s lineup with “Plus” bikes, and its Fuse lineup is helping bring new life to the hardtail by combining trail bike nimbleness with near fat bike traction. Using modern trail bike geometry and a dropper post, the Fuse rides a lot like a small-travel full suspension rig. I didn’t expect to be this …

Read Review

MTBR
Specialized Fuse Expert Carbon 6Fattie review

Nov 2016 · Nick Legan

Hardtails aren’t dead. Not by a long shot. Specialized’s new Fuse Expert Carbon 6Fattie proves that thanks to its fun geometry, excellent parts spec, and agreeable price point. - Mtbr.com

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BIKE Magazine
Review: Specialized Fuse Expert 6Fattie

Apr 2016

We test out a plus-size hardtail, the Specialized Fuse Expert 6Fattie.

Read Review

Flow Mountain Bike
Tested: Specialized Fuse Expert 6Fattie

Jun 2015

3″ tyres on mountain bikes. Yes, ‘semi fat’ is now officially a thing. Get used to it, we’ll be seeing ‘semi fat’ bikes popping up a lot as we roll toward 2016. The new standard will surely provoke heated discussions and much throwing of hands in the air. But for now we’ll cast all opinions …

Highs
  • Boat loads of fun.

  • All the excitement of riding a hardtail.

  • Traction!

  • Corners and climbs anything in its path.

Lows
  • Sluggish on buff trails.

  • Clunky Manitou fork.

  • Pricey for the spec.

Read Review

Enduro Mountainbike Magazine
First Ride | The all-new Specialized Fuse Expert – the hardtail comeback?

May 2015 · Laurenz Utech

First Ride Specialized Fuse with 6Fattie Ground Control plus size tyres. Trail Days.

Read Review

Geometry
Specs
Build
Frame

Fully butted M4 Aluminum w/smooth welding, tapered head tube and seat tube, forged post mount 160mm disc, 148mm thru-axle dropout, alloy replaceable derailleur hanger

BB StandardBB30, Press Fit

Fork

Manitou Machete 29/27.5+, Absolute Plus damper, air spring, adjustable rebound and compression/lockout, 110x15mm thru-axle, 100/120mm travel

Travel120mm

Spring TypeAir

Bottom Bracket

BB30, sealed cartridge bearings

Stem

Alloy, 7-degree rise, 31.8mm clamp

Handlebar

Double-butted alloy, 9-degree backsweep, 5-degree upsweep, 15mm rise, 750mm width, 31.8mm

Saddle

Body Geometry Henge Comp, hollow Cr-Mo rails, 143mm

Seatpost

TranzX dropper, internal cable routing, remote lever, 30.9mm, S/M: 100mm, L/XL: 120mm travel

TypeDropper

Pedals

Specialized Dirt Pedals

Grips

Specialized Sip Grip, half-waffle, S/M: regular thickness, L/XL: XL thickness

Groupset
Rear Derailleur

SRAM NX, long cage, 11-speed

Crank

Specialized Stout XC, forged alloy, 30mm Cr-Mo spindle, 76mm BCD spider, 28T

Shifters

SRAM NX, 11-speed, trigger

Cassette

SRAM PG-1130, 11-speed, 11-42t

Chain

SRAM PC-1130, 11-speed w/PowerLink

Brakes

Front: TRP Slate X2, hydraulic 4-piston disc, I-spec compatible, metallic pads, 203/180 rotor, Rear: TRP Slate X2, hydraulic 2-piston disc, I-spec compatible, metallic pads, 180/160mm rotor

TypeTRP Hydraulic Disc

Wheels
Rims

Stout 650b, alloy, disc only, 38mm inner width, 24/28h

Spokes

Stainless, 14g, black

Front Hub

Specialized Stout, alloy, sealed cartridge bearings, 15x110mm spacing, 24h

Rear Hub

Specialized Stout, SRAM XD driver, 12x148mm spacing, sealed cartridge bearings, 28h

Rider Notes
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First added November 6

Last updated November 6

Not listed for 2,401 days