[Closed] Rockshox Recon lost travel

Possibly air leaking past the seal between the upper and lower chambers. You could try burping them with a zip tie. Basically carefully push the pointy end of a zip tie past the stanchion seal to let any air out. Also letting all the air out then cycling them up and down a few times before reinflating seems to help. Longer term it may be due a service and new seals.

You could try burping them with a zip tie. Basically carefully push the pointy end of a zip tie past the stanchion seal to let any air out. Also letting all the air out then cycling them up and down a few times before reinflating seems to help

Longer term it may be due a service and new seals.

Okay I tried it and it didn't work. For some reason, something is making the fork stick down and lose travel. If I pull the fork up, its back to 100mm, but start riding again and it is quickly lost.

Today I rode it for a while and didn't pull it up, had a look at the fork and it looked like it was down to about 30mm! Shocking

Yes the fork is under warranty but I got the bike-second hand (but in brand new condition - never been ridden) so have no receipt or anything.

I'm not sure what mileage the bike has done but it is very little - it's still on it's first chain and it has yet to get past the 0.75% wear point on the chain tool! That to me means it must have done less than 500 miles. Certainly shouldn't be due anywhere near a service.

Cold weather used to have a massive effect on my Rebas, if the bike was left in the conservatory in winter. I used to have to run higher pressures on colder days.

Is it a solo air Recon? I don't know if this is the same, but on my son's solo air Rebas, the negative air chamber was sucking the fork down. Solution was to undo the allen key bolt in the foot of the non-rebound adjusting size, and underneath that bolt is a schrader valve. A quick press with an appropriate implement to release the pressure (after first removing the wheel, as a little oil comes out, and I think also removing all pressure from the top of the fork) and the "suck" was gone. Having read elsewhere, something about the amount of grease in the fork as assembled possibly covering the air bypass port that allows for the airflow to balance positive and negative chambers in the solo air fork?

See http://www.bikeradar.com/forums/viewtopic.php?t=13067420 for another post on the same subject and http://singletrackworld.com/forum/topic/rs-solo-air-fork-issues

Solo air sufferer here.
Mine are about to go back for warranty assessment as I think there's air leaking into the lowers (blew the wiper seal out and they feel indexed).
I've posted a couple of threads on here about them that had some useful answers.
You'll find them in my posting history somewhere.
[url= http://singletrackworld.com/forum/topic/pop-goes-the-reba-and-then-it-worked-better ]here is one[/url]

[url= http://singletrackworld.com/forum/topic/reba-2014-coil-conversion ]and another[/url]

Is it a solo air Recon? I don't know if this is the same, but on my son's solo air Rebas, the negative air chamber was sucking the fork down. Solution was to undo the allen key bolt in the foot of the non-rebound adjusting size, and underneath that bolt is a schrader valve. A quick press with an appropriate implement to release the pressure (after first removing the wheel, as a little oil comes out, and I think also removing all pressure from the top of the fork) and the "suck" was gone. Having read elsewhere, something about the amount of grease in the fork as assembled possibly covering the air bypass port that allows for the airflow to balance positive and negative chambers in the solo air fork?

I have another bike with Rockshox Reba's and the above works 100%

However the Rockshox Recon on my Specialized Crave 2015 doesn't have the Schrader Valve. When you undo the bolt in the foot of the non-rebound adjusting side, there is no valve there, there is nothing at all, for some reason.

Plus this problem with the Recon is different because you can pull the fork back up to full travel. With the other problem described above (with the negative air chamber) the fork is permantatly running at shorter travel and its not even possible to pull it back up. On the Recon it only starts sticking down again after a bit of riding.

The Mrs solo air recon are back with sram with similar issue after extremely low miles with 50kg on board.. Meanwhile my fox are running smooth and trouble free. Brexit trump and now Fox reliablity>rs. Worlds gone mad

This Spec Crave 2015 seems riddled with manufacturing faults. Already had a Bottom Bracket replaced, a wheel bearing that needed a service already and now forks are giving me grief. All this, and it hasn't even gone through 1 chain yet! How did this get past quality control

Other than the forks , which are fitted to many different brands of MTB , you have in over 1 year had to replace a bottom bracket and a wheel bearing . Hardly " riddled with faults ." Sometimes your cleaning regime can cause these faults , as can leaving the bike standing for a long period after riding in wet conditions .

The bike has spent the vast majority of that 1 year standing still with no use. It is a backup bike in case the FS isn't working. Over the last month my FS has been out of use due to failed brake calipers... the Spec Crave has suddenly had regular use for the first time yet.

The fork has been known to go down to about 30mm of travel at times when I've not pulled the sticking forks back up for a while. Nearly got knocked off at Lee Quarry on a red descent , looked at the forks when I got to the bottom and then I knew why. They were only operating at 30mm.

I have a similar issue with my 2016 epixon air fork, it works fine and is good and I'm happy with it for my bimblecore style of riding.

But it's a 120mm, but I generally only get about 80mm travel judging by the O ring. Maybe it's just designed like that? With an extra 40mm in reseve if it really gets hit hard? Sag set at manufacturers rating.