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Rockrider RACE 900S GX Eagle XC Mountain Bike

Sale price: $4,800.00 Regular price: $5,999.00

This frame was awarded several times in the 2022 season: 2 top 10 in XCO World Cup, France Marathon Champion and winner of the Transvesubienne - Primary race tool of the Rockrider Ford Race Team

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Sale price: $4,800.00 Regular price: $5,999.00

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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

Product Videos

Product Features

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

Rockrider RACE 900S GX Eagle XC Mountain Bike | This is a light weight, cross country (XC) and XC Marathon race machine. Excellent climbing, energy transfer and active suspension while braking

This frame was awarded several times in the 2022 season: 2 top 10 in XCO World Cup, France Marathon Champion and winner of the Transvesubienne - Primary race tool of the Rockrider Ford Race Team


Lightweight carbon fibre XC racing frame, with high pivot bearings

Questions & Answers

Product Customer Reviews

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XC Race 900S

Excellent bike

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Super mountain bike super good…

Super mountain bike, super well equipped (except the brakes) and super pleasant to ride. It restarts very easily and the steering is super precise with the carbon wheels. The electric AXS derailleur is also a plus. A nice evolution from my black and red XC 900S.

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Spectacular bike

Spectacular bicycle, unbeatable price quality, very happy with this machine

Very good value for money…

Very good value for money, too bad it's missing the telescopic seat post and having the choice of front chainring size.

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Service content

Very pleasant and efficient with small flaws

Very pleasant, efficient and light bike. A few small downsides that could (should) be improved. A problem not unique to this Rockrider and which I find really frustrating is the locking twist lock handlebars. Even if the system has been improved compared to the XC500 for example, it remains an impractical system compared to poploc where the position is not explicit. This makes changing grips, which is rather standard, complicated since the two grips do not have the same size... The majority of grips that are sold even by Decathlon are not compatible with this system without modifications, why keep this system ! The saddle is light but one of the most uncomfortable I have used, even with shorts, but that may be a problem with your body shape. The SRAM brakes are clearly not the most pleasant, especially when doing everything has much more pleasant Shimano brakes. Apart from these faults, the bike fits perfectly, the SRAM AXS shifter is a pleasure to use, the tires and wheels easily go tubeless . Not much to complain about in terms of driving and on the ground. What fun

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without character

I've been using it for 1 year. quite heavy, not very dynamic. Fragile paint and very average brakes. The +: the AXS system I do not recommend

Great mountain bike

Mountain bike with unbeatable value for money, nothing to complain about except the brakes which lack power. Small downside on the front tire which is porous and certainly old, it is impossible for me to keep it under pressure in tubeless despite the quality preventative... we will have to change the tire... Small disappointment on the reception side where the mountain bike is stored on a rail, when taking it out the saleswoman bumped it in all directions without embarrassment. There is a lack of professionalism in this price range even if the saleswoman is certainly not an expert in cycles.

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Great value for money!

Super mountain bike suitable for CX practice, including in the mountains. Quality device, small downside on the braking which could be more biting. Essential addition of a telescopic seat post.

Happy although I expected a more dynamic bike

Going up or accelerating it seems a little heavy to me. Could be improved in this regard. The rest, very good. Stable, safe, fun.

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Good change

I had to change my bike... the previous one had the frame damaged. With today's crazy bike prices, I was looking for a bargain... I was never a fan of Decathlon bikes (although I am a fan of the Decathlon store) because they had poor reviews. For 2-3 years I have noticed that the quality of bicycles is getting better and better, especially the top ones. I bought it blindly because this model was not available in stores. I wasn't disappointed. Starting with the very precise GX AXS (previously only Shimano) and ending with the Reynolds carbon wheels, everything is fine. Of course, I'm learning it a little bit. It behaves differently than a hardtail. I have great fun with every ride. I sincerely recommend it. It seems to me that it is heavier than other companies' full houses... it may just be an impression. One more problem, but of a financial nature... I used the Letyshop Plugin (Decathlon offered a 4% discount). Which was the final nail to the purchase (I was also thinking about Lapier...)... unfortunately Decathlon rejected the application.... that's probably the only minus ;)

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Meets expectations

Missing telescopic seat post

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A big thank you to the Wagram Vélo team for all the advice that made me choose this car. The reception was impeccable with a lot of attention and perfect settings. Very happy with my acquisition which is top notch. very agile, precise, flexible in accidental situations. The suspension locking is super responsive and the gear change is very precise and fast. I climbed a 25% slope without problem. The brake system is certainly the area for improvement and perhaps the flat chainrings would benefit from greater performance to go faster (a larger chainring at the front?) to follow on my next outings.

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Excellent value.

It's not the lightest mountain bike but it doesn't weigh 15 kg either. Excellent comfort on all terrains and the fork locking system is very effective. Perfect for training and long outings.

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Top ! Very good quality/equipment/price ratio

Bike purchased via Decathlon Second Life, it is like new. Just an error with the pedals provided but the salesman at the Ponts de Cé store agreed to make an exchange, thank you!
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Additional Product Information


Frame (for bike): 100.0% Carbon Fiber


Weight, in basic GX version and Mavic Crossmax wheels (Even less tubeless with Reynolds wheels)S: 11,7 kgM: 11.8 kgL: 11.9 kgXL: 12.0 kgWeight without pedals but with inner tubes


Full carbon (frame and connecting rod)1980 grams in size M with connecting rod and screws120 mm travel31.6 mm seat post Compatible with telescopic seat posts (internal passage)Thru axleBoost format PressFit 92 casingCompatible with 1 bottle cageSram UDH derailleur hanger


Sram GX AXS rear derailleur and Sram GX AXS shifter.Truvativ Stylo 6K aluminium 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 Fork32 mm damping rodsThru axleBoost formatRockShox Twist Lock 2022 2-position remote lockoutWeight: 1670 gramsRockShox SidLuxe Select + 190 x 45mm shock absorberSpecific model suited to the kinematics of the bikeWeight 236 grams


Reynolds TR309/289 XC 291665 gCarbon fibre, hookless, Tubeless Ready rimsInner width: 30 mm / 28 mmFreehub: Reynolds TR MTNSpokes (front/rear): 24 / 28 - Sapim SprintCenterlock rotor mountingLifetime warranty (when registered on the Reynolds website)


Sram Level TSram Centerline 180 mm front and 160 mm rear rotors6-bolt rotors

Riding position

Rockrider aluminium stem-7° angle60 mm in size S70 mm in size M80 mm in size L90 mm in size XLRockrider aluminium flat handlebar720 mm wide6.5° angle256 gGrips: Rockrider 900 Lock On

Saddle and seat post

Saddle Fizik Argo Vento230 g31.6 mm carbonLength: 350 mm (size S and M) / 400 mm (size L and XL)255 g


Front: Hutchinson Kraken Racing Lab 29 x 2.30Tubeless ReadyRace Ripost XC compound127 TPI carcassWeight: 700 gRear:Hutchinson Kraken Racing Lab Hardskin 29 x 2.30Hardskin protectionTubeless ReadyRace Ripost XC compound127 TPI carcassWeight: 800 g

Product testing

Ask your local Rockrider dealer about testing before purchase.

Storage instructions

Store in a dry, cool place


2 years




Size Guide Visual

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