Mtbr's 2016 Winter Biking Gear Reviews and Roundups





GT Marathon Carbon Team XC Full Suspension

5/5 (7 Reviews)
MSRP : $6000.00

Product Description

  • Seat Post: Thompson Elite
  • Grips: GT Alloy Lock Down
  • Headset: FSA Integrated, sealed angular contact bearing
  • Brake Levers: XTR seperate Hydraulic
  • Shifters: Shimano XTR trigger

Review Options:  Sorted by Latest Review | Sort by Best Rating

Reviews 1 - 7 (7 Reviews Total)

User Reviews

Overall Rating:5
Value Rating:5
Submitted by Team Flight a Racer from Johns Creek, GA, USA

Date Reviewed: August 25, 2010

Strengths:    confidence-inspiring handling on fast, technical XC race courses

Weaknesses:    Pre-2010 models could develop an annoying squeak in the pivot points

Bottom Line:   
The Marathon offers a lot of versatility. It is competitive for XC racing (especially on rougher courses), stout enough to race on most Super-D courses and Beginner/Intermediate Downhill courses. Their downhill version is the bike of choice for the present world champ. I have shopped hard and ridden lots of demos. It is impossible to find a better dollar-for-dollar value on a versatile premium race bike.

Don't buy the Marathon if you are strictly racing in a region where terrain is smooth, fast and where you don't need to handle the big hits. Get a Zaskar for those conditions... again, great value and nothing is faster than a Zaskar. It has been race-proven and ridden by champions for years.

Finally, let me mention that Performance Bike has taken great care of me over the years. When I once cracked a frame, they didn't just warranty the frame; they got me a whole new bike... who else does that?? I've also cracked Cannondale, Specialized and K2 - they just replaced the frame. GT would have probably warranted a frame only replacement too, but Performance Bike Atlanta took care of the whole enchilada!

Expand full review >>

Duration Product Used:   2 Years

Price Paid:    $5000.00

Purchased At:   Performance Bike

Similar Products Used:   Cannondale Rush, Specialized Epic, K2 Razorback

Bike Setup:   I am actually on my 3rd GT Carbon Team in 3 years. No real issues with the old ones, I just enjoy having the latest gadgets and pass the older models down to my kids who also race.
'08 model is all XTR... great set-up. Only weakness seems to be that after 2 years of hard riding, the XTR spokes were fatigued and needed more frequent replacement. The frame performs magnificantly, but the pivots have to be maintained or it squeaks under some conditions. The squeak does not affect performance, but it does prevent me from sneaking up on the next racer to pass.
'10 model SRAM X0 - the Elixer CR brakes needed more maintenance that was ever necessary with XTR. The double-thumb-paddle X0 shifters were very smooth, but when riding fast over rough ground, the X0 shifters gave me frequent, accidental, double-shifts on the forward most paddle. It is just too sensitive for fast riding. I eventually removed the X0 set up and returned to XTR. This frame had the same squeaking issue. The GT guys at the MTB National Championships were kind enough to install some new nylon bushings which resolved the issue. I like the newer Fox shock better.
'10 model - back to the XTR set-up. The 2010 model comes with the nylon bushings already installed. All is good!

Overall Rating:5
Value Rating:5
Submitted by Leyland King a Weekend Warrior from NC

Date Reviewed: April 21, 2010

Strengths:    Low weight to strength

Weaknesses:    Had an itermittent squeak curiously attractive to stray dogs which retarded front wheel free spin and necessitated disassembly when new was only moderately successful, but it did increase my speed;-). One year later, the problem appears to have been the front break -- it has needed bleeding all this time! Once I got used to the Crank Brothers Egg Beater C Pedals, I stopped separating my shoulders and spraining my wrists, but they were my choice. A lower price abd weightless kick stand would be nice features.

Bottom Line:   
By far the best bike I've ever owned. I'd be riding right now if I wasn't writing this review.

Expand full review >>

Favorite Trail:   Mill Creek, ATT

Duration Product Used:   1 Year

Price Paid:    $4000.00

Purchased At:   Performance Bicycle

Similar Products Used:   N/A

Bike Setup:   Stock

Overall Rating:5
Value Rating:5
Submitted by john from horse hill a Racer from Merrimack, NH, USA

Date Reviewed: January 15, 2010

Strengths:    Super light weight, stable at all speeds, climbs, descends, and stears perfectly.

Weaknesses:    I-Drive and headset units require constant cleaning, lubrication, and tightening. Deraillure hanger is very weak.

Bottom Line:   
This bike is a speeding bullet. The geometry inspires ripping up and bombing down over everything. I continue to beat lap times at previous years races. This bike is for anyone who loves to ride fast. It's best for those who can their own repair and tune ups. As stated before this bike requires frequent disassembly, cleaning, and lubrication of the headset and I-drive units. Take care of this bike and it'll keep you upright, out front and on the podium more often than not.

Expand full review >>

Favorite Trail:   Jacobs Ladder Holyoke MA

Duration Product Used:   6 months

Price Paid:    $3000.00

Purchased At:   GT Demo

Similar Products Used:   Jamis XC Pro, Specialized S-Works Stump Jumper

Bike Setup:   As is from factory. Didn't need to change a thing.

Overall Rating:5
Value Rating:5
Submitted by WheelerDog a Cross Country Rider from KY

Date Reviewed: January 11, 2010

Strengths:    Smooth! Small bumps, drops, fast twisty singletrack, climbing, weight, easy control. GT is a great company that stands behind their bikes. They have a great website with plenty of trouble shooting and FAQ's.

Weaknesses:    A small amount of flex. That's what comes with such a responsive chassis. Internal cable routing can be tricky.

Bottom Line:   
I'll hate to see this bike go. It's so smooth! The suspension inspires great confidence when the riding gets tricky.

The i-drive frame is designed for small bump absorption. The frame does tend to have a little flex if it isn't set up properly. I have not heard a single squeak coming from the rear end. New, the frame needs adjustment after a few rides to ensure proper set-up. I used the website video to take apart the frame and rebuild the rear end. Two bb tools and away you go, it didn't take long at all.

It just works so well for all sorts of riding, big hits need a good rider, but the bike rolls through most anything without fail. THe carbon version is nice but any model Marathon does the job. Get one and enjoy.

Expand full review >>

Favorite Trail:   Rattlesnake

Duration Product Used:   6 months

Price Paid:    $6000.00

Purchased At:   Capital City Cycles

Similar Products Used:   Kona Kikapu, Specialized Stumpjumper and carbon Epic, GT alloy Marathon and a carbon Force

Bike Setup:   Full XTR, Fox suspension, Crossmax SLR

Overall Rating:5
Value Rating:5
Submitted by Mark Weso a Cross Country Rider from Deerfield Beach, Fl., USA

Date Reviewed: October 4, 2009

Strengths:    Well designed & stiff carbon frame , fast take off with no peddle-bob, climbs like a plane and the 120mm Fox shocks and MP-23 takes downhill hits with ease , an excellent cross country race bike, great head angle for steering and fast shifters XTR shifters & derailers.

Weaknesses:    It came with lightweight Kenda Karma tires but I prefer a beefer tire for my riding style. Also it did not come with peddles but since I have Shimano clip-ons that was no problem.

Bottom Line:   
This is a champion cross-country races this bike. It really hammers for super fast take-offs, power sprints and handles great. It climbs like an airplane and descends with confidence. Steering is accurate due to 70 degree head angle. It has been the fastest cross-country racer that I've ever owned.

Expand full review >>

Favorite Trail:   Boyette, Alafia, Markum, Santos, Oleta

Duration Product Used:   6 months

Price Paid:    $4500.00

Purchased At:   Bell Bycycles

Similar Products Used:   Cannondale Rush

Bike Setup:   The carbon fiber frame has a part aluminum matrix and the I-Drive system by the bottom bracket. This I-Drive is revolutionary technology for eliminating peddle-bob which really allows for hammering this machine.Fox F-120mm fork is a dream along with the RP-23 Fox rear shock with 3 positions. The Shimano XTR shifters and derailers make for fast shifting when needed. Tubeless wheels. Thompson Post,
a solid Fizik saddle, Richey Stem & FSA carbon headset.

Overall Rating:5
Value Rating:4
Submitted by Leyland a Weekend Warrior from USA

Date Reviewed: September 7, 2009

Strengths:    Well-selected components compose this smooth rideing, precise handling, gravity-defying fun bike

Weaknesses:    Spin Doctor at the shop can't diagnose a persistent dog-attracting squeak that developed after mile 5. Fizik Gobi XM mountain bike saddle is ergonomically unrideable.

Bottom Line:   
Currently hospitalized shortly after factory delivery under its "full medical" plan, my GT Marathon Carbon Team SRAM X.O Cross Country Full Suspension Mountain Bike - Platinum Series is currently a squeaky treat after swaping the Fizik seat on the way to eBay. Prognosis: Good. A frame adapter will be required to carry this non-standard frame style on a rear bike rack.

Expand full review >>

Favorite Trail:   Lake Michael

Duration Product Used:   Less than 1 month

Price Paid:    $4000.00

Purchased At:   Performance Bicycle

Similar Products Used:   My first, and hopefully last, of this type at this price point.

Bike Setup:   Cassette: SRAM X.0 - Brakes: Avid Juicy Ultimate, 140mm rear and 160mm front - Fork: FOX 32 RL 120 mm travel, rebound adjust and remote lockout (is nice) - Brakes: Avid Juicy Ultimate, F:160mm R:140mm - Frame: i-Drive 4 monocoque carbon fiber front triangle and rear triangle with 4" travel, integrated headset and main pivot bearings, internal cable routing - Handlebar: Ritchey Carbon WCS Lo Rizer - REAR SHOCK: Fox Float RP23 with rebound adjust lockout and adjustable ProPedal - SADDLE: Fizik Gobi XM - SEATPOST: Thomson Elite - SHIFTERS: SRAM X.0 - STEM: Ritchey WCS 4 Axis - TIRES: Kenda Karma 2.0 - WHEELSET: Mavic Crossmax SLR Disc - CRANKSET: TruVativ Noir XC 3.3, 44/32/22T

Overall Rating:5
Value Rating:4
Submitted by ajriding a Racer from Stone Mtn, GA / usa

Date Reviewed: August 23, 2009

Strengths:    pedals well. pretty. easy to ride. handles well in tight singletrack. easy to work on the main pivots.

Weaknesses:    I am guessing the frame to be in the mid 5 lbs range, little overweight for the price, but still light. the downtube is way overbuilt as the shock mounts to the middle of it, where most frames use a more robust mount location.
bottle cage mount seems an after thought. hard to route internal cables.

Bottom Line:   
This is a great bike! I love it. It was an easy transition to this bike, on the first ride I had no problem getting used to it. The linkage system works wonderful, I have had no problems out of it at all. I rebuilt it after a dirty muddy race and it was actually very clean inside.
The bike built up around 23.5 lbs, and with not a ton of super light parts either.
I gave it 4 for value, just b/c it is so expensive compared to others, but guess carbon always is.

Expand full review >>

Duration Product Used:   3 months

Similar Products Used:   khs full sus bike.

Bike Setup:   Large frame. used frame and Fox 120mm fork only from original build, Middleburn cranks, xtr ders, twist shifters, Thomson post stem, Nokon housing, flat bars.

Reviews 1 - 7 (7 Reviews Total)

Review Options:  Sorted by Latest Review | Sort by Best Rating