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Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5" - 29"

Sale price: $2,499.00 Regular price:

This version of our AM Fifty_S full-suspension mountain bike opens the door to official routes and technical trails, making it the most versatile bike in the all-mountain range.

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Sale price: $2,499.00 Regular price:

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About this item:

  • The full suspension aluminum bike with perfect travel to conquer your favorite trails
  • Rockshox Recon Silver 140 mm fork, Manitou Radium 140 mm shock
  • 12 speed Sram SX 12spd drivetrain/ Tubeless ready wheels
  • Hutchinson Toro tires: 27.5 x 2.25 in size S and M, and 29 x 2.10 in L and XL
  • Lifetime Warranty: frame, stem, and handlebars guaranteed for life
Model: 8787134

Product Videos

Product Features

A photo of the Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5" - 29" in use
A photo of the Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5" - 29" in use

Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5" - 29" | This AM Fifty_S mountain bike has been designed for use on landscaped terrain and technical trails.

This version of our AM Fifty_S full-suspension mountain bike opens the door to official routes and technical trails, making it the most versatile bike in the all-mountain range.

Directional control

Steering control: 67° head angle, low bottom bracket, dropper seat post

Shock absorption

Rockshox Recon Silver 140 mm fork, Manitou Radium 140 mm shock

Braking power

SRAM Level brakes with dual-piston calipers and 180 mm / 160 mm discs.

Grip

Hutchinson Toro tires: 27.5 x 2.25 in size S and M, and 29 x 2.10 in L and XL

Product Lifestyle Image Gallery

Image Gallery



Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5 

Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5 

Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5 

Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5 

Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5

Questions & Answers

Product Customer Reviews

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236 Reviews
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Rockrider AM Fifty_S 12-Speed Full Suspension All-Mountain Bike 27.5
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Very good mountain bike, which…

Very good mountain bike, which lacks a bit of bite when braking!

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Rear derailleur problem

After 8 problems with the rear gears or the 2 small chainrings no longer shift. Repair done but nothing happens and still the same problem which would be known to your services

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Great product

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ONE YEAR OF USE

The bike rides really well. I had some small problems with the brakes as soon as I picked it up but worse after I took it to be fixed. I even had to go to another center to use it. The gearbox has some small indecision in shifting but I read that this is also the case for bikes from other brands. In summary, good bike, but terrible assistance.

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A very good report…

Very good value for money, convenient descent without worries, even the tires grip well. I recommend.

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It is very good

It is a very good bike

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MTB top shame…

MTB top shame to put poor quality pedals and a wooden board as a saddle.

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Best quality price report

Very very good value for money decathlon has really taken a big step forward in recent years, particularly on two wheels

Top notch bike. He…

Top notch bike. We just need to fine-tune the suspension settings. I made the first outing with the standard setting, flush. Great bike, unbeatable value for money especially with the promo

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good bike but very poor preparation

the preparation of this bike is extremely poor for its price! tire mounted upside down stem mounted upside down no adjustment instructions brake cable passing a few millimeters from the chainring Fortunately, good mountain bikers offer tutorials for adjusting the bike...

Super nice bike

8/10

Decathlon at the top

2 months that I ride with 3 times a week sports drill and road and quays Super mountain bike at the top especially given the price cushioned top comfort top put a comfort saddle because back problems previously and 44 pins braking at the top I had seen a lot of negative opinion on the braking rear brake but not flush steering top handling of the handlebars magnificent tt handlebars suspended suspension travel of 140 mm magnificent especially given my size 1m87 pr 95 kg limit of this bike 100 kg user front and rear 100 times better than a rigid or semi-rigid telescopic saddle terrible nickel weight not too heavy nickel resistance because I weigh 95 kg solid crankset responds well but you have to adapt put wider tires and in tubeless tubeless it looks like you have on a super light cloud in the impacts put a comfort saddle because it hurts the buttocks change the pedals because they are fragile resin plastic change the lights I also changed the chainring from 30 to 34 teeth to be able to go faster on the road and downhill, like that it also suits me very well on the Seine banks etc..... the negative points why not directly in tubeless with real pedals the transmission the speeds poorly adjusted and shifts poorly very hard to make the adjustments, often goes wrong having to re-adjust on delivery the adjustments not done for my size my weight or very poorly done for the pressure of the shock absorbers the rear derailleurs cables interfere with the rear wheel and chainring it rubs the same on the other side for the telescopic saddle return cable of the tires wider would have been better also given the machine a meter of good lights a canister offered as an accessory would have been welcome given the investment of 1400 euros therefore I am very happy with my purchase and my modifications I enjoy my outings in the forest and road a real all-terrain I go to work with Decathlon provided great bikes at a great price from a big bike brand I should have added 1000 euros to have the same equipment

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Very good

I've tried it and it's good

Unexpected quality from decathlon

For a Decathlon bike, it's unexpectedly good

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a very ok bike

the child has only been using it for a short time but it looks like an excellent bike

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Size Guide

Size Guide Visual

Additional Product Information

Composition

Bike frame: 100.0% Aluminium

Which is the right size?

Several sizes available: S: 5'1” to 5'5”M: between 5'5” and 5'9”L: between 5'9” and 6'XL: between 6'1” and 6'5”If you are on the edge between 2 sizes: Choose the smaller size for easier handling and comfort (straighter back).Choose the larger size for easier pedaling with a more stretched-out position (position more suited to higher performance).

How this mtb was designed

Entirely designed and developed in France at the B'Twin Village (Lille), this mountain bike is the fruit of the work of a team of experts and passionate all-mountain bikers who test the products in the Vosges and the Alps. The Rockrider team designed and tested this AM Fifty_S All-Mountain bike together with their MTB testers. The AM Fifty_S is assembled at our own factory in Lille, just steps away from the bike design team.

Frame

The Rockrider All Mountain frame offers 140 mm of travel on the rear wheel.Its geometry has been optimized for steering: 67° head angle, 15 mm bottom bracket under the wheel axle.Made of 6061 and 6013 aluminum.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: 6 lbs.

Front suspension

Rockshox Recon fork with 140 mm travel.Compatible with 27.5” and 29” wheels and tires up to 2.8” wide. It uses the boost standard for maximum control, fun, and comfort.The Recon fork has been designed with a tried-and-tested Motion Control cartridge, with low speed compression adjustment to lockout and external rebound adjustment.Fast Black steel finish on the dampers.Solo Air spring that takes just seconds to adjust, for a smooth, predictable ride.

Rear suspension

Manitou Radium 140 mm rear shock designed specifically for the Rockrider AM Fifty_S mountain bike.Adjustable to reduce bobbing during long climbs on faster terrain.

Drivetrain

SRAM SX 12S 30 x 11-50 drivetrainSingle chainring for less weight, more precision, faster gear changes, and more durability.Rack: 30 teeth, easily replaceable (32 or 34-tooth chainring, available) without changing the chain. Cassette: SRAM Eagle in 11-50 (11-13-15-17-19-22-25-28-32-36-42-50). The 50-tooth sprocket guarantees good gear reduction to help you climb the steepest slopes.

Riding position

Control your steering and stay precise.RockRider Comp Flat handlebars, 740 mm wide for greater stability. 60 mm stem for a position that's more suited to fast terrain Semi-integrated headset with sealed bearings. Lightweight RockRider 900 ”lock on” grips (attached to the handlebar with a screw-on system).

Brakes

SRAM Level brakes: The dual-piston brake caliper performs perfectly for all-mountain beginners and is a safe bet. 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 pedaling.The height of the dropper seat post can be adjusted using the control on the bike's handlebar: 120 mm of travel in size S/M and 150 mm in L/XL. The ability to lower the saddle in a second with a single press of the thumb is a real advantage in all-mountain biking. Feel at ease (and relaxed!) in your seating position on the bike during technical descents.

Product testing

Ask your local Decathlon store about testing before purchase.

Storage instructions

We recommend storing your mountain bike in a cool, dry place, away from corrosive products and salty air.

Guarantee

Lifetime (frame, stem, handlebar). Details on our website. Availability of spare parts: 2 years.

Origin

Imported

Ca warning

California Prop65 WARNING: This product can expose you to chemicals including Lead, which is known by the State of California to cause cancer. For more information, go to www.P65warnings.ca.gov.

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
  1. product-research

    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

  4. laptop-checkout

    Minimal retail footprint

    lowers overhead and indirect costs

 

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