GT Force Carbon Pro and Sanction 1.0 - Interbike 2009

Oct 19, 2009
by Mike Levy  
2010 GT Sanction 1.0 and Force Carbon Pro:
Views: 5,291    Faves: 2    Comments: 1

GT Sanction 1.0

The Sanction is GT's 150 mm travel platform that would fit the bill as a 'do it all' all-mountain bike. There are two models built upon the same frame, a more economical Sanction 2.0, as well as the top end 1.0 pictured here. If you like to pick and choose your own parts then GT also has a frame only option. While the brawny Sanction may have the same amount of rear wheel travel as its lighter brother, the Force, the geometry really puts the Sanction in a different class. With a slacker 67 degree head angle (versus the force's 69 h/a) it really is a bike that is meant for higher speeds over rougher terrain and bigger moves.

The Sanction's strapping front end leaves no questions as to whether it's ready for action

GT Sanction 1.0 spec

Frame and Size6061 monocoque frame with 6.0 inches of rear wheel travel. With new forged I-link. Standardized bearings and modular dropout system with 12mm rear maxle.
Rear ShockFOX DHX Air 5.0 XV, air sprung damper with rebound and compression adjust
ForkFOX 36 Talas RC2 FIT, air sprung travel adjustable 20mm through axle with rebound and compression damping.
HeadsetFSA Orbit X 1 1/8" forged cups, sealed bearings
CrankarmsSRAM Hammerschmidt, 22T, 2 speed internal shift system
Bottom BracketSRAM Integrated for Hammerschmidt
ChainHG-73 Nine Speed
CassetteShimano XT 11-34t
Rear DerailleurSRAM X .9
ShiftersSRAM X .9 and Hammershmidt
HandlebarSyncros AM 20 carbon "grunge" with 20 mm of rise
StemThompson Elite X4
GripsGT Lock Down, co molded locking grip system with alloy collars
BrakesSAvid Elixir CR with 185mm rotors
Front WheelFSA Gravity wheelset 20 mm
Rear WheelFSA Gravity wheelset 12mm x 135mm for Rock Shox Maxle
Tires26"x 2.3 Kenda Nevgal, 120 tpi with Kevlar bead
SaddleWTB Pure V Race
SeatpostThompson Elite

A DHX Air 5.0 can takes care of the rear end

Another telltale sign of the Sanction's intentions is the off the shelf spec that includes SRAM's burly HammerSchmidt cranks. Mounted via the big gray bike's ISCG tabs, the HammerSchmidt system gives the bike a bit more ground clearance, as well as the ability to shift on demand and even act as a proper chainguide. Putting the power down to the ground is GT's Independent Drive (ID) suspension system. The ID system is used by GT throughout their entire full suspension lineup, from the XC bikes to the DH race machines. While looking a bit different than some other options out there, ID's high pivot combined with a floating BB arrangement to counter chain growth has been proven to both pedal well and absorb the terrain.

Non-drive side detail of the Sanction's ID suspension

A new forged I-Link and massive pivots make up the ID system

Modular 12 mm Maxle dropouts are adaptable to other hub sizes

2010 GT Force Carbon Pro

GT pulled no punches when building the Force Carbon Pro. From the full carbon frame (both front and rear triangles), to the graphics and an obviously no holds barred component spec, the Carbon Pro is sure to attract attention where ever it goes. There is no getting around the bike's distinctive lines and shapes, unlike anything else out there. Those in charge of paint at GT wisely chose to leave much of the Force's frame bare to see, only covering the carbons weave with a protective clear coat. Add to the mix Shimano's grey finish on the Forces's XTR component group and you have a bike that manages to be both stealth and flashy all at the same time.

The GT has some unique lines! Check out the cable routing

The silver GT's front triangle is a single monocoque carbon piece

As opposed to using multiple pieces of carbon tubing glued together with lugs, GT chose to build the Carbon Pro's frame as a monocoque (one piece) unit. Because the front triangle is built as a single piece there is far less chance of imperfections or mis-alignments. The lay up of the Force's carbon is far more complicated than simply placing a sheet of fiber of the mold and letting it take shape. Each part of the frame is under different stresses and has different needs and GT accommodates this by laying down the carbon fiber weave in different directions depending on the riding characteristics that they are looking for. Different grades and types of fibers are also used in different places to have the finished product be as light and strong as possible.

A Fox RP23 handles the bikes 150 mm of travel

The Force's carbon weave is left naked to see

GT Force Carbon Pro spec

Frame and SizeGT designed carbon monocoque frame with Independent Drivetrain suspension. 6.0 inches of rear wheel travel. With forged I-link, standardized bearings and modular dropout system.
Rear ShockFox Float RP23 Shock
ForkFox TALAS 32 RL wth QR 15 through axle system adjustable travel from 110 - 150mm with air spring pressure and rebound adjust with 7050 aluminum steerer
HeadsetFSA integrated sealed bearing
CrankarmsShimano XTR 44/32/22
Bottom BracketShimano XTR Outboard
ChainShimano Nine Speed
CassetteShimano XT 11-34t
Rear DerailleurShimano Shadow XTR
Front DerailleurShimano XTR
ShiftersShimano XTR
HandlebarRitchey Carbon WCF Rizer 31.8 clamp, low rise
StemThompson Elite X4
GripsGT Lock Down, co molded locking grip system with alloy collars
BrakesShimano XTR Disc, 180/160 mm
Front WheelMavic CrossMax ST disc, 15 mm TA
Rear WheelMavic CrossMax ST disc
TiresKenda Nevgal, 120 tpi with Kevlar bead, 2.3"/2.1"
SaddleFIZIK Gobi XM with manganese rails
SeatpostThompson Elite

A closer look at the Force's Independent Drivetrain

The Force Carbon Pro uses GT's Independent Drivetrain suspension design. The I.Drive system has been proven to work well when the needs are both a forgiving platform and a good pedaling bike. Despite the complicated look, the rear axle actually rotates around a simple single pivot that sits high on the front triangle which should give the bike great square edge ability and make it carry speed well.

Clean modular dropouts make it easy to switch things up

Force Carbon Pro from the front

If you want to see GT's entire range, including other models of the Force and Sanction series, head on over to the GT website!

Mike Levy


  • 7 1
 Guys, As expressed in previous articles its not that the chains are rusty, its the dirt in the desert that makes it look so rusted out.
  • 6 1
 That Carbon Pro is niiiiice! Um, does the chain look a little used to anyone else though? Smile
  • 2 0
 It's the red dirt from the desert....
  • 3 1
 I rode the Sanction down at demo days in Boulder City, and to be honest it was one of the worst riding 6" bikes I have been on in quite some time. The GT guys said that it was because it had been demo'd not only at Interbike but also at Eurobike... to me there were no worn just rode terribly! The bike was set up for my body weight and yet when pedaling the bike felt like it locked out over the small bumps and then when i hit some of the little jumps and drops on the BC trail the bike blew through the travel and bottomed out. I was hoping that the bike was going to be nice to ride but honestly the Mongoose Khyber felt 100 times better and has a better parts kit for less money. Anyway just thought I would share my experience.
  • 1 0
 Ruckus 7:

And yes the Slopestyle bike is a nice tight, stiff little package. Rode it at Rays indoor MTB park during a demo day for GT. Thumbs up!
  • 1 0
 i wonder why the sanction didn't come with an adjustable seat post like the gravity dropper. they seem pretty much the standard on these types of bike nowadays.
  • 2 0
 I really like this, i would be riding the hell out of it almost effortlessly Smile Great job GT.
  • 3 1
 he said Movic wheels? is that how you pronounce Mavic?
  • 3 0
  • 2 1
  • 1 0
 mah-vick I believe is how American's (are supposed to) pronounce the brand name
  • 4 0
 Well it's a French word, so I'm gonna go with the French pronunciation. I suppose the most common American version I hear is "mah-vick," but that doesn't mean it's right.
  • 1 0
 lol. just like marzocchi. I first thought it was mars-o-chi. lol not mars-o-ki
  • 2 0
 Ya. It does look a little used. But that's a pretty sweet bike.
  • 1 1
 even the dude in video called it a long-travel cross country bike (to avoid liability I'm sure) before he talked about how it rode on the mountain.
  • 1 0
 +1 I rode the prototype last Jan in Cleveland and none seen at interbike? What is going on with this SLopestyle bike anyway?
  • 1 0
 Spoke to a mate in GT about this very thing!

The Slopestyle bike got put on hold along with the "Speed Series" BMX's
and some other prototype stuff (by which i presume he means that Ruckus 7
proto we've seen). Apparently the guys developing this stuf got re-
assigned during the corporate reshuffle but these are still very much
alive and still in development.

Both Slopestyle and Speed Series are still being riden and tested and have
been re-sheduled for 2011 release.

Morpheous, does the Slopestyle ride as well as it looks?
  • 1 0
 i want one of those speed series bikes but NEVER EVER PUT mountain biking on "HOLD"Frown
  • 3 1
 sweet i like it!
  • 1 0
 oooh the new TALAS w/o travel adjust and VAN lowers /s
  • 1 0
 Uhm...a Talas without travel adjust wouldn't be called a Talas, since it stands for "Travel Adjustable Linear Air Spring."
  • 1 0
 I've always wondered about its true meaning...
  • 1 1
 Yeah I have them on both of my bikes.... I was being sarcastic.
  • 1 1
 Man they put all that high end spec on the Force and then give us a Float 32 RL? Come on, GT!
  • 1 0
 Which one has Floats?

The Force has TALAS 32 QR15 and the Sanction is runnin TALAS 36 RC2's

What Float's are you talking about?
  • 1 1
 Talas, Float, whatever...
  • 4 7
 Why do these idiot manufacturers keep trying to make carbon fiber work in mountain biking? it's a failed material for this sport and should never be sold to the public as a working product. It's over-priced, disposeable, unsafe garbage designed to sell to rich little weight weenies that have more money than brains. Everybody listen to me, carbon fiber WILL fail and it will be catastrophic when it does, oh and guess what...NOONE will give carbon fiber a warranty because they know it will fail yet aluminum bikes are now coming with 25 yr warranties because the companies have faith in those pruducts.
  • 4 0
 I remember the days when people said the same thing about aluminum.

I agree with you but only a tiny bit. Yes, carbon fails catastropically, but first you have to get it to fail. GT say the (carbon) Fury is 10 times stronger than an aluminum frame. They say they hit the downtube with a hammer and broke its handle.

The thing I don't like about carbon is not knowing if it is still sound or not. Is that damage cosmetic or structural and only x-ray can tell. That's not economical for a set of bars. So back to aluminum bars I go.
  • 2 0
 What are you talking about? The only one DH bike I didn't crack is a nine years old Remec Carbon.
  • 3 0
 So, just to be clear, you are saying Santa Cruz is producing garbage!!!
  • 1 0
 Carbon as a material is fantastic. Companies need to be smart in the way
they work with it and generaly speaking they are getting better and better.
So EasyKillah, You'r telling us that Formula One teams are stupid for
using carbon to make the entire chassis of a car when they should be using
aluminium? Or are you saying you're so hardcore you put more stress through your bike than an F1 race car's engine?
  • 2 1
 eder, those videos prove nothing. worse things would happen to an aluminum XC frame if you hit it with a hammer.
  • 1 0
 Then you didn't see the entire video, because they did it with an aluminum frame and it bent in the first beat.
  • 1 0
 Iamamodel, these videos proof the carbon is very resistant. I believe you understood I was trying to say the inverse. But i'm trying to say the carbon fiber is great. I broke all my aluminum DH bikes, but didn't my carbon fiber one.
  • 1 0
 actually they said the carbon frame would take an impact that would normally dent an aluminum frame. I know lots of guys still riding dented frames but if they were riding a carbon frame they would have had to throw it away. imagine replacing your frame after every decent crash like a helmet, sounds great for the manufacturers tho. Also, do you think anyone at the factory would have taken that frame they tested with their very scientific method of using a hammer and ridden it afterwards? Not on your life! carbon should stick to road use as you don't have to worry about regular impact. the fact that this is even a matter of discussion proves that this is problematic.
  • 1 0
 My scientific method was to ride my DH Carbon Remec about 5 years until to break the rear aluminum swing arm and the crow of a Marzocchi Monster. The carbon front suffered several hard impacts and is integer until today.

Here is it
  • 1 0
 How did you all miss the GT Ruckus 7 ?
  • 1 0
  • 1 0
 Tire clearance seems tight on the Sanction...
  • 1 0

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