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I've got some 2016 RS Revs (32mm stanchions) that are currently 140mm. I'd like to shorten them to 120 (or less if possible!) so I can stick them on my lads bike. Is it an air spring change or travel spacers? If an air spring, anyone know where I might be able to buy one?
You should be able to download the workshop manual in PDF from from the RS website. I think you will need a new airshaft, the manual should give you the parts numbers, otherwise you'll be able to get them from the RS website. Changing the airshaft isn't a difficult job.
Edit. Page 13 here links to the spare parts catalogue:
Ta. That would seem to suggest I can just whack a load of bottomless tokens in to change the travel, anyone know if that's the case? I thought it was spacers or an air shaft change. Maybe that guide is just badly written!
Bottomless tokens change how the spring rate ramps up through the travel. They don't actually change the travel. They will still be the same length, just harder to bottom out.
Reading that SRAM link and my understanding from having Revelations of that era is that the travel is adjusted by swapping the air spring.
Pretty sure a solo air revelation is an airspring change. The recon etc used a different method to change travel with spacers on the air shaft.
I had a 2015 Boardman Pro Fs I think it was - that had a revelation solonair and I extended travel from 130mm to 150mm and that was a new air shaft.
I would try some 10mm id nylon washers. Use 10 2mm thick ones to get a 20mm reduction. Put them on the airshaft, between the bottom of the piston and the valve head that fits into the bottom of the stanchion.