Fox Racing Shox DHX 4.0 Air Rear Shock Review

2.00 out of 5
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Fox Racing Shox Fox DHX 4.0 Air

December 17, 2012
Model/Year: DHX 4.0 Air 2009

Pros: - Air sprung
- Weight (compared to a coil)
- Piggy back reservoir
- Makes your bike look tough
- Easy to rebuild and to install seals

Cons: - Not progressive
- Requires high air pressures
- Not consistent
- Required multiple and frequent servicing
- Pro Pedal adjustment not significant

Recommendation: Overall I'm not entirely impressed the with DHX 4.0 Air. First of all it never felt consistent (going from plush to a pogo stick in seconds); second it required very high air pressures to maintain 25% sag and I would still blow through all of the travel.

Furthermore, in the 3 years that I owned the shock it was returned to the Fox factory 3 times for rebuilds (took them about 1 1/2 months) and to my LBS 4 times for new seals. Finally in the last few months that I had it I did some research on my own and began doing my own servicing.

All in all I have given up on the DHX Air series and have gone to single canister rear shocks like the RP23.

Fox Racing Shox DHX 4.0 Air 2.00 out of 5 based on 1 ratings. 1 user reviews.