2013 Fox Racing Shocks CTD damper and 650B forks

Fox Racing Shox has update their damping technology and function to make it more user friendly and better match front and rear performance.

“In the past we treated front and rear as separate,” said Mark Jordan, Fox’s global marketing communications manager. “We did what we thought the front needed for the front and the rear for the rear. Riders really needed a solid understanding of how low and high speed compression and rebound works to really get the most out of their suspension. And these settings and adjustment were different from our forks to our shocks.”

“For 2013, we made it simpler by creating the CTD damper fr both the forks and shocks. CTD stands for Climb, Trail and Descend, and you simply set it for the type of riding you’re doing.”

There’s also a new 650B fork in the 34 Series and the DOSS adjustable height post is finally for real!

2013 Fox Racing Shocks CTD damper and 650B forks

CTD will be on the Evolution (mostly OEM), Performance (also mostly OEM) and Factory (top of the line aftermarket) lines. The latter two have their FIT cartridge, the Evo line is open bath. On the lower lines, they’ll have a simpler CTD lever. On the Factory, there’s a more advanced middle setting that’s reminiscent of Pro Pedal. Put it in Trail, and there’s an outer Trail Adjust bezel that let you pick between three settings: soft, medium and firm.

CTD will be on all forks in these lines up to 160mm travel for all three wheel sizes: 26, 650/27.5 and 29er.

Rebound remains basically the same, just a different looking lever on the shocks.

2013 Fox Racing Shocks CTD damper and 650B forks

Two (obnoxiously large) remotes will be offered, a dual control one that’ll change CTD settings simultaneously on the fork and shock, or a single version for one or the other. the dual is shown above, note the two cables exiting.

2013 Fox Racing Shocks CTD damper and 650B forks

Using the remote eliminates the external Trail Adjust feature. They’ll be letting OEM customers customize the compression settings, but aftermarket forks with the remote will be in the middle (2) setting. The aftermarket kit to add the remote to the top of the fork will come with parts to let you set the Trail Adjust where you want it, though. Shocks will be sold either as a remote or regular, but forks will be able to add the remote after the fact.

Jordan says you should put it in the fully open Descend mode to set sag and they recommend starting between 15% and 20%.

CTD forks and shocks are shipping for OEM now, and aftermarket parts should be available around June.

2013 Fox Racing Shocks DOSS adjustable height seatpost

They were also developing the DOSS dropper seatpost while developing the CTD system, and they’ve incorporated it into its settings nomenclature. Climb is all the way up, Trail drops it 40mm and Descend drops it all the way down – 4″ or 5″ depending on model. They’ll offer 30.9 and 31.6 diameters. It uses a (very large) remote dual lever, and they designed it so that the in we black lever goes to the Trail setting and the outer lever will drop to either the middle or bottom level. There’s a Schrader valve on the bottom of the post to adjust air pressure and return speed. It returns pretty quickly, ad Jordan says that’s because the keys that stop it in each position retract completely. The benefit is claimed improved durability and less friction. There are eight locator pins, four to drop it to the mid setting and all eight when your bringing it to the bottom. When compressed, you can lift the saddle without pulling up the post.

Pricing is $439 and it starts shipping in May.

2013 Fox Racing Shocks CTD damper and 650B forks

The 34 forks will get a new chassis with lower axle dropouts for 650B/27.5 wheels. They’re going to see how demand is before making the 32 available in 27.5, but there’s OEM demand for the 34’s. Jordan wouldn’t say who other than there’s at least one major brand that’ll be spec’ing it.

Something I didn’t know is that all of their bicycle suspension products are made in Watsonville, CA. USA! USA!


  1. nice job explaining the marketing. would have been nice to know what the CTD control actually does. oh well.

    i’m hoping climb is lockout, trail is low speed compression on, descend is open. I don’t like twisting the lsc knob while riding, so this would be a useful feature.

  2. I can see the usefulness of the suspension settings for varied riding, and for people who struggle to get their rebound, compression, and sag set up properly. However, those remotes are horridly ugly, and look like they would be in the way. Also, the price on the seat post is ridiculous. Sadly, the name will sell it, and not the innovation or technology. Plus, I can’t see myself ever not wanting infinite adjust on my dropper post. Lastly, Fox you took this long getting your post ready for the market, don’t you think you should’ve moved away from a cable go to the seat clamp? The market is asking for it and your competitors are responding.

  3. Can you freaking imagine if you had a ride set up with duall CTD and Doss? The bike would look like a spider web with an airplanes amount of levers to push….now I see why the are developing the electronic version. And now we know what the “settings” were on that. Sheesh those shifters are nasty huge and ugly.

  4. Is it just me or does that look like an IGUS bushing for the shock mounting hardware instead of the usual DU bush and alloy reducers?

  5. Actually, their forks are only assembled in the US, not made. The components all come out of Taiwan and China (like everyone else).

  6. Looks sweet… too bad I’ll never be able to afford any of it. Almost $500 for a seatpost??? It better be twice as good as a Gravity Dropper at that price.

  7. That DOSS seatpost is two steps behind all others on the market now. Anyone who would buy a new dropper post WITHOUT a stationary cable operation is buying old technology. Only two posts (KS LEV and Kronolog) are worthy of consideration. So let me get this straight- Remote for shock and fork on right side and remote for dropper with dangling up and down seat cable near your rear tire on the left side. You would need matchmakers and 800+ mm bars just to fit all this cabling. I dont have this much cabling spaghetti on my street legal enduro with mirrors, blinkers, key, starter, throttle…seriously

    Also….Marzocchi came out with this technology about 3 to 5 years ago. Next thing you know FOX will invent the elastomer bumper system like Manitou back in the 80’s. Keep drinking the marketing kool-aid everyone!

COMMENT HERE: (For best results, log in through Wordpress or your social media account. Anonymous/fake email comments may be unapproved or deleted. ALL first-time commenter's posts are held for moderation. Check our Comment Policy for full details.)

This site uses Akismet to reduce spam. Learn how your comment data is processed.