While Fox's latest FIT GRIP2 damper gets the limelight for 2019, the FIT4 continues as an option for those who prefer easy on-the-fly adjustability. The GRIP2 offers a whopping 4-way range of high/low speed compression as well as high/low speed rebound, one click at a time. If this sounds like a headache for you, then the FIT4 damper may be up your alley, as it offers three main presets to choose from.
3-Position FIT4 Damper
Now in it's fourth generation, the FIT4 damper tune has been tweaked and improved, featuring a reconfigured shim stack that provides more sensitivity while maintaining support under aggressive riding conditions. Fox's FIT4 damper offers three main compression settings, Open/Medium/Firm. In the open position, the fork's oil flow is maximized, providing a very plush and responsive feel overall. The medium position stiffens the initial compression, allowing the fork to ride slightly higher in it's travel, reducing pedal bob/feedback. The firm setting will be increase initial compression resistance even more, and will offer the firmest ride of the three settings. Naturally, the open setting is intended for downhill trail sections, the medium setting is intended for primarily flat trail sections, and the firm setting is intended for climbing. In the open mode, the FIT4 damper offers 22 clicks of low speed compression, though it does lack the externally adjustable high speed compression and high speed rebound that the GRIP2 damper offers (found on some of Fox's 2019 36-series forks). Why offer such a range of compression adjustment in the open setting when you could just flip the knob to the medium setting? Good question. The medium setting is intended for a quick on-the-fly switch to a firmer platform. On the inside of the fork, the medium setting, the fork has to push through a shim stack ever time it is compressed, which results in slightly harsher small bump performance. The open setting however does not utilize that shim stack, resulting in unadulterated performance - so it makes sense to give those extra 22 clicks of compression adjustability in this setting, as that is where you'll likely be spending the most time when riding.
The FIT4 utilizes a 10mm shaft and seal head design that increases oil flow to the base valve. Fox also increased flow through the rebound circuit for faster recovery from hard hits. With the increased oil flow throughout the entire damper, as well as improvements to inner seal heads, the FIT4 forks will be very plush and responsive in the open setting.
EVOL Air Spring
The EVOL air spring remains mostly the same for 2019, though Fox did tweak it to provide a slightly more linear spring curve gives EVOL forks plushness off the top, extra mid-stroke support, and more tunable bottom-out progression, allowing riders to tap into the ideal pairing of front and rear-end feel. EVOL also increases negative air spring volume, specifically positioned and sized for optimum small bump sensitivity.
In the box
- 36 Float 27.5" 3-Pos FIT4 EVOL 15x110 Boost Factory
- (3) Volume Spacer
- Star nut
|Travel:||150mm, 160mm, 170mm|
|Disc Mount:||Post Mount 180mm|
|Axle Configuraton:||15x110mm Boost|
|Min. Rotor Size:||180mm|
|Max. Rotor Size:||203mm|
|Steertube Diameter:||1.125" - 1.5" Tapered|
- FIT4 Damper Tune
- EVOL Extra Volume
- Genuine Kashima coat
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