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Fox Racing Shox 34 Float Factory FIT4 27.5" Suspension Fork - 2019

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Product Description

For the very best trail bike performance, the Fox 34 is the go to fork for mid travel mountain 27.5” bikes. This Factory version from Fox Racing Shox gets the composed damping performance of the FIT4 damper alongside the super slick performance of the Kashima coating on the upper tubes.

Key Features:

  • Damping: FIT4 3-Pos Lever w/adj.
  • Spring: FLOAT
  • Travel: 140mm, 150mm
  • Upper Tube Finish: Kashima Coat
  • Steerer: 1.5 Taper
  • Wheel Size: 29”
  • Rake/Offset: 44mm, 37mm
  • Axle Options: 15QR x 110 Boost, 15QR x 100

Designed for the aggressive trail rider, the Factory Series 34 features a FIT4 damper, FLOAT air spring, and super lightweight chassis. Starting at only 3.92 pounds, the 34 provides proven trail performance that instils confidence and control.

"Factory" says it all. The best-of-the-best technology we have to offer is available in our Factory Series models with our buttery smooth, and ultra-durable Genuine Kashima Coat. These products are World Cup proven.


  • FIT4 damper for improved control.
  • 15QR x 110 Boost and 15QR x 100 axle options.
  • FLOAT air spring for plush performance.
  • Genuine Kashima coating for slick running


Note: Occasionally, without notice, manufacturers change product design and/or specifications.

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Suspension Forks Guide


Suspension Forks Guide

A new suspension fork is one of the most noticeable and worthy upgrades you can make to your mountain bike. A higher quality fork will be able to deal with more difficult terrain, remaining composed on the trail and keeping your wheel in contact with the ground. This gives more grip, and therefore a more confidence inspiring ride.


The amount of distance the fork can move vertically is referred to as travel (shown in mm). The frame manufacturer will have designed the bike around a certain amount of travel. The general rule is to stay with this. Increasing or decreasing the fork travel can result in the geometry being severely compromised, making the bike handle worse than intended and putting more stress on the headtube structure.

*Changing fork travel can void frame warranty from the manufacturer, please check with the manufacturer before any travel increase/decrease.

As fork travel increases so can flex, to combat this a triple clamp design is used for forks with over 180mm of travel. The hub plus the two crowns creates a triple clamp. The forks are for DH use.

A triple clamp DH fork, travel is measured from the lower crown to the top of the fork lower legs


The distance the axle is offset from the steering axis. This directly affects the “Trail”. Trail is the distance between the contact point of the tyre and where the steering axis hits the floor. The shorter the offset the longer the trail and vice versa. Wheelsize also affects trail. Larger wheels have a longer trail. With the popularity of 29er MTB’s, there is often an offset choice to be made.


The most common offset for a 29er fork is 51mm, however, fork manufacturers offer shorter offsets to increase trail.

Without going too far into things, a longer trail (Shorter offset) will increase stability at speed in a similar way to a slacker head angle. A longer offset (shorter trail) will sharpen the bikes handling at low speed but might not feel quite as stable at high speed. Often it is best to stick with whatever offset was chosen by the manufacturer to work with the geometry of the frame.


Spring type

Although the vast majority of forks are air sprung, some entry level and a handful of high-end forks use coil springs.

Air sprung



  • Lightweight
  • Less plush than coil
  • Easily adjustable
  • More internals than coil to maintain
  • Easy setup
  • Less small bump sensitivity

Coil sprung



  • Increases traction
  • Less adjustable
  • More supple and plush
  • Not as easy to set up as air
  • Ground hugging feel
  • Heavier than air shocks


Compression damping controls how the fork moves through its travel. Almost every fork will have some form of compression adjustment. On entry level forks a lockout might be a feature, the more the fork costs the more adjustment is available. Forks might have multiple compression options, for example, a “Climb, Trail, descend” or “open, medium, firm” dial, while top-line forks have precise control of both high and low-speed compression.


Adjusts how fast the fork returns to full extension or sag point. Rebound adjustment can be found on entry level shocks. Top-line shocks will have separate high and low-speed rebound adjustment controlling how the fork reacts after high and low-speed compressions.

Setting Sag

See our full guide to setting sag here

Jargon Buster

Compression – Controlling how the suspension moves through the available travel.

Head Angle – The angle of the fork to the floor, this will range in degrees from low 60’s to high 70’s depending on the bike

High-speed compression – How the suspension moves through the travel from High-speed hits, not high-speed riding. For example, rocks, roots, braking bumps, landing from jumps/drops etc.

Low-speed compression – How the suspension moves through the travel from low-speed movement, not low-speed riding. For example, when under compression through a berm, going up a transition of a jump etc.

Preload – How much the coil spring is compressed in its static state.

Bolt On – An axle that is incorporated into the hub with nuts on the end. Designed to work with traditional 9mm or 10mm dropouts.

Rebound – How fast a shock returns to full extension.

Sag – How much travel is used under rider weight.

Shock pump – A high-pressure air pump used to adjust air shocks, running at a much higher pressure than a normal inner tube/tyre pump.

Spring rate – The force needed to compress the shock.

Triple clamp – A fork with two crowns, used on long travel DH forks to combat flex.


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