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Did some quick CAD maths. Feel free to correct: Given a 400mm stanchion height and 20mm press distance into the axle/stachion union, a 1mm offset at the non-axle end as observed means the concentricity between the base and the top of the stanchion press union is .05mm or .002". That does not included the perpendicularity between the effective stanchion press interface axis and effective axle axis (axle + threaded sleeve concentricity and size tolerances). If the concentricity is perfect then the resulting stanchion to axle axle angle to get a 1mm offset is 0.144deg. In reality both of these tolerances...
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TEAMROBOT Liked a reply to forum topic Suspension Component Technology/Functionality Discussion

8/28/2025 11:06am
So many factors influence correct spring rate for any given rider/terrain/bike combo, like steep or flat terrain, progressive or linear leverage rate, flat pedals or clips, long legs/short torso (rearward COG) or short legs/long torso (forward COG), preferred reach length relative to height (again, short reach/tall person will have a rearward COG, whereas long reach/short person will have a forward COG). But I think 25-30% sag is a great starting point for all bikes. By always starting with 25 or 30% sag, over time you'll discover whether you're the sort of rider who consistently prefers more sag than recommended or...
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Yeah thats pretty much what I was going to say! When they say to start with "sag" I think they are just meaning to set the spring rate full stop, in whatever method so its at least in the ballpark. ie not just bolting it on with whatever spring or pressure it had in the box. And I always like to work through spring rate first - find the point which is definitely too stiff and too soft and then work back in from there. Its amazing how often the "sag" can seem about right and not obviously too stiff...
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notthatbryan Liked a reply to forum topic Suspension Component Technology/Functionality Discussion

8/27/2025 5:05pm
Setting sag with a repeatable method is the starting point. The most important thing you need to do when setting up suspension is good basic trouble shooting, make one change at a time and record your changes. You will adjust from there, but sag gets you in the ballpark for spring rate. Damping is highly dependent on spring rate, so if your spring rate is way off it's very difficult to get damping set up correctly. My process to setup new suspension is to set sag and then find the manufacturer damper setting recommendations that correspond to that air pressure...
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TEAMROBOT Liked a reply to forum topic Suspension Component Technology/Functionality Discussion

8/27/2025 5:04pm
These are great questions. You're absolutely right that sag measurements or recommendations are not sacrosanct or miraculous, and there are instances where more or less sag than recommended is going to yield a better riding bike. But we're talking about nuances that are way, way, way above the average rider, and lightyears above the riders that Jordi is speaking to on those Fox videos. As a company, Fox has to deal with angry customers and bad online reviews from people who are riding three or four spring rates off from correct sag and complaining about the compression settings being "too...
This forum topic has 667 replies.

AvgMTBEnjoyer Liked a reply to forum topic MTB Tech Rumors and Innovation

8/27/2025 2:27pm
I think it should be time to gatekeep. I've already been calling out creators using AI, I wouldn't be opposed to calling out people who take free stuff from Lewis.
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snowsnakes Liked a reply to forum topic Suspension Component Technology/Functionality Discussion

8/27/2025 1:00pm
Here's a question that's been ping-ponging around my head for a bit now: is sag actually critically important, or is it just a jumping off point? I see Fox (or at least Jordi), Cane Creek, etc. claiming that sag MUST be set properly before adjusting anything else, but also that the method you use to set sag doesn't really matter as long as it's consistent. If the methodology isn't important, I don't understand how it constitutes useful data and/or how it should be used as the baseline before any other adjustment.
This forum topic has 667 replies.

ebruner Liked a reply to forum topic Suspension Component Technology/Functionality Discussion

8/27/2025 1:00pm
Validating you have the correct spring rate is important. Achieving that with a repeatable sag measurement, data acquisition, gopro recording however you want to do it is not important. What is important is that you have a repeatable process that isn't just based on 'feel'. the various methods for setting sag are a great starting point for consumers to take measurements.
This forum topic has 667 replies.

john_likes_bikes Liked a reply to forum topic Tire chat (nerds only)

8/27/2025 10:04am
From pit bits
This forum topic has 1995 replies.

sspomer Liked a reply to forum topic MTB Tech Rumors and Innovation

8/27/2025 9:25am
team rumors.
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sspomer Liked a reply to forum topic MTB Tech Rumors and Innovation

8/27/2025 9:24am
just got pit bits in from rick. transmission DH derailleur and cassette, and more new demo pics below.
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saskskier Liked a reply to forum topic MTB Tech Rumors and Innovation

8/27/2025 8:25am
I know it's been discussed a bunch already, but got another pic of the new 40 at the Fox pit in Les Gets. Didn't get a pic of the dials, but looks like it's still running Grip X2. Dials looked the same as the current gen 40.
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Vedran_Baric Liked a reply to forum topic MTB Tech Rumors and Innovation

8/27/2025 6:55am
👀
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vinicius gabrielli Liked a reply to forum topic MTB Tech Rumors and Innovation

8/27/2025 6:07am
Content cannot be rendered.
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storm.racing Liked a reply to forum topic 32-inch Wheels and Mountain Bikes

8/27/2025 6:04am
As a tall guys, I’m just here to chime in and say I’m about this. Bring it on. Ready for 32s
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Between reading through Rockshox development articles and what you descried I've got a decent idea of what you said. I'd love to see dyno data mostly just because I'm a nerd but I think I get the idea. I did know that about measuring sag with the negative spring and always measure it with the rear wheel off the ground...
I'll see if I can put some dyno screenshots together to show it better, but the main piston is quite "high flow" which just means once the shims open there is very little resistance so increasing the base tune mostly just increases the force needed to open the shims (ie low speeds). The LSC adjuster controls bleed around the base valve, but since it works on displaced oil from the shaft it needs quite high speeds to do anything. The step between each click is large though, so 1 more click stiffer should help a bit However spring rate is...
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I don’t really want to put any more money into this shock since Im really not the biggest fan of the Touchdown Damper on a coil. I was a huge fan of it on the Vivid air so thought I would give it a try for my first coil but my experience has been it didn’t translate as well. I...

TEAMROBOT Liked a reply to forum topic Suspension Component Technology/Functionality Discussion

8/26/2025 2:18pm
I would email WPS in the UK. They make an aftermarket piston upgrade for the Vivid Coil that might address your concerns: https://wps-mtb.com/products/podium-piston-kit-rockshox-vivid-coil-c1 I'll also just say that your experience is pretty common with RS rear shocks on SC bikes, especially the Megatower. I have a Super Deluxe coil on my Megatower 2 and ended up just running the HSC wide open. That works pretty well for me, and between the LSC, spring rate, and HBO, I've been able to find a setup that works.
This forum topic has 667 replies.