Rockshox MC 3.3

If you are working with one of these shocks today, you either have a bicycle that you have loved forever or are doing some used bicycle shopping.

I’m part of the former category. One of my favorite bikes that I purchased about five years ago came with the MC 3.3. Jon (you guys know Jon! Crazy mohawk guy?) was shopping one of these for his nephew and wanted my take.

I got nostalgic, so I decided to do a quick write up.

The short is, these shocks are at least eight years old, and they still work well. I don’t ride that Trek much, but you guys know the kind of serious off-road riding we do, and this Trek is still one of my favorites to ride.

You’ll want to service them as you do with any of the Monarch series, but the replacement rings are pretty affordable, and the whole thing only takes an hour of shop time (I typically mix my shock rebuilding time and whiskey drinking time and AC/DC time together. )

It offers 80 to 130 mm of travel, but the shock adds very little weight and is rather plush (it is a single air shock). I find it perfect for my style of all-mountain riding.

A typical air shock, it is pretty easy to check and adjust for each riding style. You also have the floodgate control for adjusting the responsiveness and overload you want to allow, depending on how aggressive you are riding.

The floodgate isn’t as smooth as some of the other ones I’ve used, but it does a lot to help reduce pedal bob when climbing.

It does have sag markers which make it rather easy to adjust. I run mine with about 60 PSI (190 lb rider)

My only concern is that replacement parts are getting impossible to find. I haven’t serviced it for a few years, and it is high time, but I’m not having luck finding new rings.

So I’ll probably keep riding (and loaning) it until it becomes a pain and then replace it. (This is why they allow things to become obsolete, right?