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Rockrider RACE 900S GX Eagle XC Mountain Bike

Sale price: $5,999.00 Regular price:

This frame has received a number of accolades in the 2022 season: 2 top 10 in XCO World Cup, France Marathon Champion and winner of the Transvesubienne.

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Sale price: $5,999.00 Regular price:

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San Francisco, 735 Market St. Options

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About this item:

  • Full carbon frame and swingarm
  • 4.36 lbs Frame shock weight
  • Sram Eagle GX AXS drive train
  • Rockshox Reba fork and Rockshox Sid shock with 120 mm travel
Model: 8832747

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A photo of the Rockrider RACE 900S GX Eagle XC Mountain Bike in use

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Product Customer Reviews

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33 Reviews
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Brakes are a little lacking…

Brakes lack a bit of bite.. number of teeth on the crankset too low... Insufficient development downhill I'm going to change the crown to improve it by at least two teeth since we can play on the rear wheel cassette if necessary.. .

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Comment title about the product I purchased

It absorbs the impacts tremendously. It's a complete MTB bike. Gear shifts are great. Definitely recommended.

the bike very good. But…

the bike very good. But what's not so good: the bike is supposedly tubeless, but comes with an inner tube. to convert it tubeless 30 euros more. The bike comes with flat pedals, I asked to exchange them with automatic pedals. The seller didn't want to take them back, so I added 33 euros and kept flat pedals so I'll never use them. I asked for a telescopic rod, but no offer. I have to manage to buy one and make an appointment for the climb. With the purchase of the bike I was supposedly entitled to 200 vouchers, I only got 100 euros False advertising!

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Bike top

Bike top

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Mountain biking Awesome!

Hello, I bought this mountain bike 2 months ago to replace my aging Spark 900 RC. I don't want to give an opinion too early to judge it properly. After 2 months of outings, on various terrains, it's a super pleasant bike to ride. The performance is very good, the Reynolds wheels are top notch. The frame is very well finished and the protections already in place are very sturdy. The AXS derailleur is incredibly comfortable to use, it's very pleasant and the battery life is long. The damping is very good whether for the shock absorber or the Reba. I replaced the handlebars with a carbon handlebar which could have been originally provided on this type of bike. The Sram Level T brakes do not have great finish and braking quality but do the job, I am going to upgrade them to metal pads to improve braking. To conclude, I am super happy with this bike and I highly recommend it. The quality to price ratio is excellent ! Thank you to Décathlon for bringing out mountain bikes of this quality.

very good bike just…

very good bike just a little problem unscrewing the screw of the canister support problem which should be fixed for the first service

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Top level

Very satisfied

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Mountain biking

I don't regret my purchase, I love it!!! A few more outings to fine-tune the settings and it will be great! For more information, do not hesitate to read the reviews and tests on “VTT magazine” for the month of May 2023! They summed up the behavior of the bike well! Too bad not to have provided for the passage of the brake hose in the "non-AXS" frame as well as the passage plug kit!!!

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Discontent with purchase

The bike has a high weight, the brakes are regular and, above all, the rear is unstable and noisy in sharp turns. After taking it to a trusted workshop, he sees little stability in the chainstays, although the bearings are fine. I took them to Decathlon and at a glance he told me it was fine. The best is the cushioning and the Reynolds wheels. I do not recommend your purchase.

a good bike but poor braking!!

after 6 months of normal use change the pads and always too long travel of the brake lever!!

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The bicycle seems incredible to me but it has been impossible until now for them to answer me what the "standover" measurement is so I can know if size S is right for me. This measurement DOES NOT APPEAR in the drawing of the frame geometry and is the one that goes from the half of the upper tube to the ground. It is necessary to know if, when positioned on the painting, the feet touch the ground. Thanks and regards

Responsive and precise

Responsive and precise

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great mountain bike, not only…

super mountain bike, not only for its quality/price ratio. Super performance, as soon as you press it apart and what's more, it's beautiful. Didn't hesitate to take this model with electric derailleur and carbon wheels.

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Fork is 100mm not 120mm!!!

The bike has a fork configured as 100mm not 120mm as in the description. The Decathlon service said they cannot change it to 120mm as they do not have the tools to do it. !? And RockShocks supplier in Bucharest said they deliver all the forks as 100mm and they cannot do anything for this. So finally it is up to my 'pocket' to change it to 120 mm in another bike service point. The bike came with the handlebar screws loose. Fortunately I escaped without accidents. The pinions still came loose. I also bought another 'top' Rockrider 900s bike that came with the handlebar off-center and the screws still loose for both handlebar and pinions. Overall is a good bike (except the brakes but for those i knew what u buy) if i can make it as a 120mm finally as i thought i will get.


I have little to say, it suits me perfectly

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Additional Product Information


Weight, in basic GX version and Mavic Crossmax tyres S: 25.8lbs (11.7 kg) M: 26lbs (11.8 kg) L: 26.2lbs (11.9kg) XL: 26.5lbs (12 kg) Weight without pedals but with inner tubes


Full carbon. 1980 grams in size. 120 mm travel. 31.6 mm seat post. Compatible with internally routed dropper post. Thru axle. Boost format. PressFit 92 casing. Sram UDH derailleur hanger.


Sram GX AXS rear derailleur and Sram GX AXS shifter. Truvativ Stylo 6K aluminum crankset (170 mm in S and M, and 175 mm in L and XL) 32T chainring (compatible with 30, 32, 34 and 36T) SRAM PG1275 10-52 cassette (520%) Sram PF 92 bottom bracket.


RockShox Reba RL 120 mm Fork. 32 mm stanchion tubes. Thru axle. Boost format. RockShox Twist Lock 2-position remote lockout. RockShox SidLuxe Select + 190 x 45mm shock. Specific model suited to the kinematics of the bike.


Reynolds TR309/289 XC 29. Carbon fiber, hookless, Tubeless Ready rims. Inner width: 30 mm / 28 mm. Freehub: Reynolds TR MTN. Spokes (front/rear): 24 / 28 - Sapim Sprint. Centerlock rotor mounting. Lifetime warranty (when registered on the Reynolds website)


Sram Level T. Sram Centerline 180 mm front and 160 mm rear rotors. 6-bolt rotors.

Riding position

Rockrider aluminum stem. -7° angle. 60 mm in size S. 70 mm in size M. 80 mm in size L. 90 mm in size XL. / Rockrider aluminum flat handlebar. 720 mm wide. 6.5° angle. 256 g. / Grips: Rockrider 900 Lock On

Saddle and seat post

Saddle Fizik Argo Vento. 230 g. 31.6 mm carbon. Length: 350 mm (size S and M) / 400 mm (size L and XL) 255 g.


Front: Hutchinson Kraken Racing Lab 29 x 2.30. Tubeless Ready. Race Ripost XC compound. 127 TPI carcass. Weight: 700 g. / Rear: Hutchinson Kraken Racing Lab Hardskin 29 x 2.30. Hardskin protection. Tubeless Ready. Race Ripost XC compound. 127 TPI carcass. Weight: 800 g.



Superior quality. Unbeatable prices.

For 40 years, Decathlon has delivered the best value in the retail sports industry by offering high-quality, sustainable and cost-effective products.

Decathlon makes the difference
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    Research and development

    delivers high-quality cost-effective products

  2. State-of-the-art production processes

    minimize manufacturing costs

  3. Optimized supply chain

    reduces retail prices

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    Minimal retail footprint

    lowers overhead and indirect costs


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