Posted by: Ripbro
Assuming the Mattoc is like a Mezzer, changing the fork travel requires removing the air spring. This requires removing the lowers and unthreading the air spring from the stanchion from the bottom (opposite the IRT) and removing/adding spacers. 15-30 minute job depending on experience. It requires disconnecting the front brake at a minimum.
Alternatively, you could set the air spring at 150mm travel, then with a pump attached, push the fork down 10mm, then disconnect the pump. The travel will stay at 140mm until you reconnect the pump. I have talked to some owners who run their fork like this by default as it increases the size of the negative air spring.
Get a good digital pump with a two stage head. My mezzer is quite sensitive to changes in pressure. You can feel 5 psi difference on the trail.
That's a neat feature (or bug, as the case may be). Since it comes at 140, I could ride it for a bit that way, change it to 150 to get a feel for the travel adjust/lowers service and then immediately try the "hacked" 140 with the 150mm air spring to see how it feels. If that provides a more desirable ride feel, that would almost be better, since I don't think I'll run it at 150 too frequently, but it would be nice to not have to remove the fork or brake to swap it. I also have been looking for an excuse to upgrade shock pumps, so this may be it. Perhaps a stupid question, but if one were to go from 150 to 140mm travel in this way (or vice versa), would it require more or less pressure?