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ROCKRIDER AM 500 S Full Suspension Mountain Bike - 29"

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was £1,699.99 -%


This price includes a recycling fee for electrical equipment and batteries DecathlonDeeeTaxMentionAfterPrice / Since

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£1,699.99 -%
This price includes a recycling fee for electrical equipment and batteries DecathlonDeeeTaxMentionAfterPrice / Since

* From To

* Sales from to Until end of stock
* From and limited stock
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This full suss 29er trail MTB has been designed by the riders and engineers at Rockrider to deliver an engaging ride, superb handling and to handle the toughest of trails. With the most up to date geometry the whole bike is focused on the rider control and with the addition of market beating specification, the AM 500 S really is a bike for any serious and demanding rider. New 500S all-mountain mountain bike with geometry designed for steering and premium equipment: Rockshox Pike and Monarch fork and shock, Sram XO drivetrain and Sram Guide brake.
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Due to high demand, we are currently suspending online delivery for bikes. We are now increasing the availability of our bikes in our store showrooms while continuing with our Click and Collect service.
Our Click and Collect service has hit it’s threshold limit for the day (count resets at 11pm daily). This is a temporary measure and we thank you for your patience and understanding.

Product benefits

Directional control Steering control: 66° head angle, short stem, low chainset, dropper seat post
Grip High-quality Rockshox Pike and Monarch suspension, Tubeless Ready tyres.
Braking power SRAM LEVEL T 4-piston 180/160mm hydraulic disc brakes

Technical Information

Which is the right size?

Several sizes available:
S: 1.55 m to 1.64 m
M: between 1.65m and 1.74m
L: between 1.75m and 1.84m
XL: between 1.85 m and 1.95 m
If you are on the limit between 2 sizes:
Choose the smaller size for easier steering (easier to handle) and comfort (straighter back).
Choose the larger size for easier pedalling with a more stretched-out position (position more suited to higher performance).


This mountain bike was fully designed and developed at the B'Twin Village (Lille, France) and is the brainchild of an expert team of all-mountain bike enthusiasts.
The Rockrider team designed and tested this Rockrider 500 S All-Mountain bike together with their MTB testers.
The AM 500 S is assembled at our own factory in Lille, just steps away from the bike design team.


The ROCKRIDER ALL MOUNTAIN frame offers 140 mm of travel on the rear wheel.
Its geometry has been optimised for steering: 66° steering angle, 15 mm bottom bracket under the wheel axle.
Made of 6061 and 6013 aluminium.
Lifetime warranty on the Switch & Ride frame: compatible with 27.5" and 29" wheels.
148 mm x 12 mm BOOST rear axle.
Press Fit 92 bottom bracket.
31.6 mm diameter seat post.
Compatible with a bottle cage.
Weight in size S: 2.7 kg.

Front suspension

Rockshox PIKE Select 150mm fork.
The new Maxima Plush suspension fluid reduces friction and irritating noises from the suspension.
Charger™ RC shock cartridge with adjustable compression at low speed.
The fully adjustable DebonAir™ spring provides the same even feeling as a coil spring throughout its travel.
The slightest details have been designed to reduce friction, limit rider fatigue, and offer incomparable control

Rear suspension

Rockshox MONARCH RT shocks
Its new airy design provides flexible, lightweight travel, and the DebonAir air spring also achieves a stiffness that is generally matched only by much heavier coil shocks.
2-position (open/locked) compression adjustment with external release adjustment
The fully adjustable DebonAir™ spring provides the same even feel as a coil spring, throughout its travel.


Ride anywhere, whether up or down hill with this 12-speed cassette.
SRAM XO1 EAGLE drivetrain, single 1x12 chainwheel, for larger development and easier climbs.
SRAM XG1275 EAGLE cassette with 12 cogs: 10/50 teeth. The 50-teeth cog ensures you get the right gear ratio for climbing the most challenging sections, whilst 10-teeth cog is ideal for developing the fastest speed.

Riding position

Control your steering & stay precise.
Rockrider Comp Flat handlebars, 760mm wide for greater stability.
35 mm stem.
Semi-integrated headset with sealed bearings.
Lightweight Rockrider 900 "lock on" grips (attached to the handlebar with a screw-on system).


SRAM GUIDE T 4-piston hydraulic disc brakes. 180 mm front disc, 160 mm rear disc

Saddle and seat post

The Rockrider XC/AM saddle has an Ergofit system for greater comfort while pedalling.
The height of the dropper seat post can be adjusted using the control on the bike's handlebar: 120mm of travel in size S/M and 150mm in L/XL. The ability to lower the saddle in a second with a single press of the thumb is a real advantage for all-mountain biking.
Feel at ease (and relaxed!) in your seating position on the bike during technical descents.


Mavic XA 29" wheels: the 30 mm hook spacing inside lets you ride at low pressures with great grip.
Cartridge bearings for more durability and better fluidity.


Hutchinson Taipan 29X2.25 and Toro 29x 2.35 tyres. Tubeless Ready. Hardskin.
A versatile tyre designed for riding on any type of terrain.
High side knobs for good grip in the turns.


The bike comes with B'Twin Flat Evo platform pedals. However, for improved performance when pedalling and for better control of the bike when cycling, we recommend replacing them with clipless pedals with platforms or wide platform pedals with inserts.

A unisex mountain bike

Men's or women's mountain bike? This Rockrider AM 500 S mountain bike is unisex.
For added comfort, the women on our mountain bike team recommend the Women's 500 Sport saddle, which is adapted to women's builds.


The front and rear wheels attach and remove in 1 motion: you just need a hex key (size 6).
The rear derailleur has a screed that locks and unlocks easily to easily attach or remove the rear wheel.

Free service and after-sales website

During your first few rides, your bike's equipment will stretch and move (chain, derailleur, brakes, etc.)
We offer a free service within 6 months of your purchase. Our technicians will carry out a 13-point safety check of your bike. If you need help, please visit our Decathlon after-sales website.


S - 155-164cm: 13.8 kg
M - 165-174cm: 13.9 kg
L - 173-187cm: 14.1 kg
XL - 185-195cm: 14.2 kg
bike without pedals

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Composition / advice

100.00% Aluminium
Stock advice We recommend storing your mountain bike in a cool, dry place, away from corrosive products and salty air.
Restricted use : The complete bike + fully equipped rider should not exceed 120kg

Our commitments

Test Product Ask your local Decathlon store about testing before purchase.
Guarantee : Lifetime (frame, stem, handlebar). Details on our website. Availability of spare parts: 2 years.


Q : How to assemble your bike?
Everything you need to know about making sure your bike is comfortable, secure and ready to ride.
Q : How do you adjust your brakes?
Having properly functioning brakes is vital when out on the road. Check out how to get them working to your liking.
Q : How to replace a brake lever on a bike?
Having properly functioning brakes is vital when out on the road. Here’s a video to show you how to make sure your new brake level is working nicely.
Q : How to replace a disc brake?
Having issues with your disc brake? Then this video is for you.
Q : How to adjust your bike handlebar?
A suitable handlebar height is essential to your cycling safety and comfort. Find out how to adjust it to your liking with our video.
Q : Do you offer a Cycle To Work scheme?
Find out everything you need to know about way of getting to work that’s good you and the environment.Check Here

Your reviews

Reviews by our Team Members

Our services

500 S AM Mountain Bike 29
Maintenance and repair
Maintenance and repair
Spare parts