whatever is taken off the compression, needs to be put onto the negative side of the cartridge.

you could get a smaller spring, and use some kind of spacer in the cartridge to reduce them. the spacer would have to go ontop/below the top out bumper in the negative side of the cartridge for it to work. dont think im explaining this clearly. sorry.

wassell

they will probably have a spacer on top of the spring upderneath the topcap, this needs to be placed between the compression/rebound cartridge and the preload clp that holds the cart into the stanchion.that is if they can be reduced, so no cutting down of springs or anythign silly.

In theory it's perfectly feasable to reduce them to 130mm you simply need to get a 130mm spring and either a longer top out spring or a spacer for the existing one, there is certainly a 130-110mm travel reduction kit (see here) it might be a little trickier to find out what bits you'll need to go from 150-130mm.

Try e-mailing windwave about the parts needed for a travel change, or looking at the online tech support docs on their site.

Alternatively they do offer a travel change option with their fork servicing...

Good luck...