I (90kg) have two 34's but the SC is poor. Non SC is at 85psi for 25% sag & the SC is 70psi for 25% sag. I wrote to Fox about the poor SC performance & this what they said;
There are a few different potential factors at play here.
Firstly, please bear in mind that although both of these forks use a 34mm diameter upper tube, the remainder of the chassis is completely unique. This does lead to completely different ride characteristics between the two, so it is difficult to make a comparison between the two. The 34 uses a larger negative air chamber, so is inherently softer off the top, whereas the stepcast is designed to sit higher in its travel, as it is more of a cross country fork.
This is not to say that there is no issue present, so it is definitely worth ruling out a few things. The easiest thing to check is your setup. Your sag reading is higher than Foxs recommended setting, which is between 15-20% of the forks travel. Running a higher sag percentage can be softer initially, however it can lead to harshness. This is due to the fork sitting deeper into its travel, and due to the progressive nature of air springs, any subsequent compression can feel harsh, as it needs more force to compress the fork.<br style="box-sizing: border-box;" />After checking this, I would confirm your compression settings. Too much low speed compression can also result in dampers feeling spiky in certain scenarios.
If this has been ruled out, then it could be the result of stiction within the fork, in which case it should come back to us for a warranty inspection. We can then dyno test the fork, and determine if there are any issues present. If yo do need to get this returned to us, please submit a warranty evaluation request by
clicking here. On the second page of the form, please be sure to mark the toggle to yes for a warranty evaluation. Be sure to have an electronic copy of your proof of purchase handy - there is a spot on the second page of request form to upload it. Once we receive the request, we will email you information on sending your product in for evaluation.
Before adjusting volume spacers I would run through the rest of your setup. Volume spacer will primarily affect the end stroke of the fork, with minimal impact on the initial compression. If you are struggling to reach full travel with the sag set to between 15-20%, then you should look to remove volume spacers.
Removing volume spacers will make the fork more linear, and therefore it will feel less harsh in certain scenarios. The flip side of this is that if you remove too many, you run the risk of a more harsh bottom out. It is for this reason that I recommend only changing one at a time, and seeing how much travel you subsequently use.
Posted : 28/11/2024 1:37 pm
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