Revelation diving through travel: diagnosis and cure ??

I’ve had half a dozen OTBs in the last couple of months, which I put down to crappy technique. That’s still the most likely explanation, but I went out for a very gentle ride today (as I’m still recovering from the last OTB); just fire roads and some grassy slopes and I noticed that I still used all but 10mm of the 150mm travel on my Revelation RLTs. So, I’m wondering whether the Revs are diving through their travel and if so, what to do about it.

These are 2010/2011 Revelation RLT dual-position shocks with a poploc remote and I’m running 15-20% sag. I’m guessing that I need to increase compression damping, but can’t work out how to do that. The poploc locks the fork, but despite the dial on the crown saying “Compression” the remote seems to be either on or off.

Cheers,

Andy

turn the threshold dial

Doesn’t that only come into effect when the forks are locked out? I assumed that it was a sort of blow-off for the lockout (i.e. they are locked until they get a hit bigger than some threshold then they work as normal). Don’t really want to ride with the lockout on all the time and presumably they would still dive if the hit is above the threshold. Or have I got it all wrong again?

Cheers,

Andy

nope, threshold also affects compression “unlocked”.. not sure at what speeds though. i don’t think there’s much you can do with a poploc other than changing to manual adjuster or just adding more air. sag is misleading with dual air forks because -ve makes it look really different. you have to do it by ride not so much %

My old (2009) revs that had poploc had a dial on the LEVER that adjusted how far “open” it would go when off… I.e. not returning to zero compression damping.
Does yours?

DrP

how heavy are you and how much pressure in the +ve side?

For compression adjust you need the adjustable poploc which has a blue dial but I would say the problem is elsewhere.

Sound like there is not enough air in.

Thanks All,

These are dual position not dual air (so, basically, solo air with travel adjust) and it’s just a poploc (rather than poploc adjust) lever, so no compression adjust on the lever. I’ll check the pressure tomorrow, but I think it ended up about 10% higher than the recommended value for my eleven and a half stone.

I’ll try a bit more air and winding the threshold up a bit, but I’ve also seen some instructions on how to remove the poploc and replace it with a “proper” dial for adjusting compression, so that might be on the cards one day.

Cheers,

Andy

Set the sag in your attack position, not sitting down. The taller you are, the softer the forks will be when set for seated sag compared to correct sag.

the recommended pressures are rubbish IMO.

I’m suspicious of your air spring. If you really are getting only 20% sag (bearing in mind it’s checked in the riding/attack position not in a back-weighted seated position) then it should be supportive.

Old dual-airs could leak between the positive and negative spring, makes me wonder if something sort of similiar is happening here.

Thanks Folks,

I was setting sag in the seated position. In the attack position it looked more like 30%, so I’ve increased the pressure so that it is 20% in the attack position and we’ll see how it goes.

I still don’t understand why these forks have a compression dial that can only be either fully open or fully locked, but is seems a simple enough job to ditch the poploc and ad a knob to allow the compression to be adjusted, so I’ll add that to the list of jobs.

Cheers,

Andy