About time the HD4 gets it's own Pic and Build thread! Mods, can you stick this one?
From what I have been told and read/seen, the DPX2 makes for a more poppy playful ride while the X2 makes the bike feel softer and more supple which makes it better suited for someone who primarily uses the bike in a DH setting. No first hand experience though. I would be interested in hearing more from people who have ridden both.What are peoples thoughts on the rear shock options from Ibis? A LBS told me he preferred the DPX2 to the X2. Has anyone tried both? Thoughts? Any killer aftermarket options?
Yeah. I initially thought the shock was not holding air or my shock pump gauge was broken. I'm 180 all geared up and had to do 240 psi!Question for everyone..... How much air pressure are you guys running in your shock?
I weigh 185 lbs and it took 245 PSI to get me to 14 mm of sag which seemed like a lot of pressure to me. This is assuming the gauge on my shock pump is correct. I don't have another one to compare it to.
Edit: Just found the setup guide on Ibis' site and I am right where I should be.
Any idea if Fox air springs take more pressure that Rockshox do to achieve the same rate or does the HD4 linkage just have a lot of leverage on the shock? My old Canyon with a RS Deluxe shock only took like 160 PSI.Yeah. I initially thought the shock was not holding air or my shock pump gauge was broken. I'm 180 all geared up and had to do 240 psi!
Not sure on what the reason is, but it's definitely needing way higher pressure than any other shocks I've run. I've also had to set the rebound fairly slow. I'm going to order the volume spacer kit for it so I can run a bit lower PSI but still avoid bottoming.Any idea if Fox air springs take more pressure that Rockshox do to achieve the same rate or does the HD4 linkage just have a lot of leverage on the shock? My old Canyon with a RS Deluxe shock only took like 160 PSI.
Not equalizing the chambers during inflations would make you end up with a lower pressure than you should. Like I said though, per Ibis' setup guide, I am right where I should be at 185 lbs.Im 190 geared up and i need 215psi to get 14.5mm sag. 240 sounds too high. When pumping up the shock make sure you're equalizing by cycling the shock at every 50 psi. Jump on the bike and try to cycle the shock 15 times.
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It is the DPX2. I just went back and looked at their charts. That is interesting.Which shock is on your bike? The recommended pressure for the DPX2 is higher than the X2.
I was going to try 30% (17mm) but it doesn't feel feel harsh at all at 25% and I am still able to use all the travel so I'm not sure I want to run any more sag.Don't be afraid to run more sag than 14mm also. I'm running more like 18mm and don't have issues with pedal strike
I cycled the shock every 50 PSI per the guide. I bottomed the shock at the PSI the shop I bought from had it set at so I went a little more conservative considering the epic I had coming up. Even after quite a few fast rooty sections and some decent drops I have about 6-8mm of travel left so yes I could probably go a little lower, but not much.Im 190 geared up and i need 215psi to get 14.5mm sag. 240 sounds too high. When pumping up the shock make sure you're equalizing by cycling the shock at every 50 psi. Jump on the bike and try to cycle the shock 15 times.
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