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2020 Specialized

Fuse M4 Frameset

A 29″ aluminum frame trail frameset.

Manufacturer Price

$800
FrameAluminum
Wheels29″
Where to Buy
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Insights
Sizing
XS

5'1" – 5'6"

SM

5'4" – 5'9"

MD

5'7" – 6'0"

LG

5'10" – 6'3"

XL

6'0" – 6'5"

🐐 Estimated

Rider Fit Notes
  • 5'7", size M, Just right
  • 6'0", size LG , Just right
Reviews

Summary

The Specialized Fuse is a versatile trail hardtail that defies traditional expectations with its fun, frisky ride and capability in rough, technical terrain. Its 130mm fork, slack geometry, and plus-sized tires enhance confidence and comfort on descents, while the steep seat angle aids in efficient climbing. However, some reviews note issues with front-end height and brake performance, and comparisons often highlight bikes like the Calibre Line 29 and Vitus Sentier 29.

Pros
  • 130mm fork for tackling rough terrain

  • Slack geometry and plus-sized tires enhance ride confidence

  • Steep seat angle improves climbing efficiency

  • Versatile frame design with adjustable dropouts

  • High-quality components for a fun trail experience

Cons
  • Front end may feel too low for some riders

  • Brake performance not as powerful as competitors

  • Higher bottom bracket than necessary

  • Short head tube affects riding position

Key Quotes
Most hardtails are cross-country-focused these days, but we wanted Fuse to be the perfect trail riders’ hardtail and excel in rough, steep, and technical terrain similar to a full-suspension bike but at a fraction of the cost.
Bicycling
The Fuse frame, with its smooth welds and rich paintwork, looks sleek and reassuringly expensive up close.
BikeRadar logoBikeRadar
A fast, fun and efficient alloy hardtail, but best of all it doesn't shake the life out of you on rougher trails
MBR logoMBR
Not everyone wants to ride a full suspension mountain bike, and not everyone wants to be on an angry XC race hardtail.
Singletrack World logoSingletrack World

Feedback?

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BikeRadar
Specialized Fuse 27.5 review

May 2020 · Seb Stott

A comfortable and traction-rich ride, but the cramped rider position stymies climbing and descending poise for taller riders

Highs
  • Plus tyres offer extra traction, comfort and confidence on rough terrain

  • Dropper post and 1x drivetrain help you maintain your flow through undulating terrain

Lows
  • The XL bike is too cramped and low at the front, making steep climbs and descents awkward

  • With its small chainring, heavy weight and big tyres, the Fuse feels somewhat muted and unresponsive, even if it’s no slower in reality than the other bikes on test

Read Review

Bicycling
Want the Most Fun You’ll Ever Have on a Hardtail? Ride the Specialized Fuse Comp 29.

Mar 2020 · Riley Missel

Credit to the slack geometry, ample maneuverability, and a fork with plenty of travel.

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MBR
Specialized Fuse Expert 29 review - MBR

Jan 2020 · Alan Muldoon

The new Specialized Fuse Expert 29 lends a lightweight alloy frame with 29in wheels and a 130mm fork. Ther most aggro trail hardtail.

Highs
  • High-tech frame design

Lows
  • Front end is too low

Read Review

Mountain Bike Action
MBA Bike Test: Specialized Fuse Expert 29

Nov 2019 · McCoy

Far from entry-level performance

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Outdoor Gear Lab
Specialized Fuse 27.5

Aug 2019 · Jeremy Benson

The Specialized Fuse 27.5 rode away from the competition in our budget mountain bike test. This is hands down the best budget hardtail we've tested...

Highs
  • Solid all-around performance

  • Meaty tires

  • Modern geometry

  • Fun on a wide range of terrain

Lows
  • Big tires can feel a little slow rolling

  • Seat post is too short

  • No chain stay protection

Read Review

BIKE Magazine
First Ride: Specialized Fuse Expert 29

Jun 2019

The newly modernized Fuse hardtail just got a more aggressive spec, geometry and price point ... but not too aggressive.

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off.road.cc
Specialized Fuse Comp 29 review

Jun 2019

Specialized's Fuse Comp 29 is a 130mm trail hardtail that blends balanced handling with some very neat features. It's got a very respectable spec list for a shop bought bike, but dedicated distance sluggers will find it too heavy and those after techy thrills will find the geometry a bit tame. The best mountain bikes you can buy for under £1,500 - full sus and hardtails Is it worth converting your mountain bike to tubeless?

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Singletrack World
Review | 2020 Specialized Fuse Comp 29

Jun 2019 · Wil Barrett

The 2020 Specialized Fuse Comp is a new-school hardtail ripper with a 130mm travel fork, 2.6in tyres, and modern trail-oriented geometry.

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Geometry
Specs
Build
Frame

Specialized M4 Premium Aluminum, 148mm thru-axle, adjustable dropout, SS compatible, tapered head tube, internal cable routing

Rider Notes
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First added November 6

Last updated July 31

Not listed for 2,133 days