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ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
ST540 S 27.5 Mountain Bike

ROCKRIDER

8500761

ST540 S 27.5 Mountain Bike

$860.00
95 reviews
89 of 95 people recommends this product
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
  • ST540 S 27.5 Mountain Bike
ST540 S 27.5 Mountain Bike
Size :

Store Availability

This 27.5 MTB is designed for 2 to 3 hour MTB rides in any season.

BENEFITS

Cycling comfort

Enjoy an upright position, adjustable stem, 120-mm suspension, hammock saddle.

Directional control

Control your trajectory: hydraulic fork and brakes, tires, and a wide handlebar.

Efficiency

Ride efficiently with the 27.5 wheels, 18 speeds, and light tires.

Easy to use

Lock the fork in one quick step and adjust the saddle effortlessly.

Lifetime warranty

Rockrider offers a lifetime warranty on the frame, handlebars, and stem.

TECHNICAL INFORMATIONS

What size mountain bike should I choose?

Several sizes available:
M: 1.65 m to 1.74 m tall
L: 1.75 m to 1.84 m tall
XL: 1.85 m to 2.00 m tall

If you’re between two sizes:
Choose the smaller size for easier handling and comfort (straighter back).
Choose the larger size for easier pedalling with a more stretched-out position (for better performance).

Unisex frame

The ST540 S MTB has a unisex frame.
The ST540 S frame has been carefully designed down to the smallest detail, from the top tube’s relatively pronounced slope to the wide range of sizes (M: 1.65 m to XL: 2 m). The ST540 S is not only lightweight and comfortable, but also unisex.
For even more comfort, the women on the Rockrider team recommend the 500 Women’s Sports Saddle, which is specially designed for the female form.

A word from our team

The ST540 S mountain bike was fully designed and developed by our passionate MTB team at the Btwin Village in France (Lille).
A comfortable, efficient mountain bike: more progressive and powerful hydraulic disc brakes, air shock, a 120-mm fork to get over obstacles easily, and a simple and effective double chainring.
Women mountain bikers have been involved at every stage of this bike’s development.

A comfortable, playful frame

For less weight and more efficient pedalling, the Rockrider ST540 S frame is made from 6061 aluminum (only 2.7 kg in size M without suspension). Its 120-mm rear shock uses a single-pivot system (more sensitive to small impacts while remaining firm during large impacts) and sealed bearings for a great lifespan.

120-mm front suspension

The hydraulic fork with 120-mm travel allows you to easily ride over more obstacles (roots, pebbles, stones, mud, etc.).
Steer on narrow paths thanks to wide dampers (32 mm). The fork’s built-in lockout system helps prevent bobbing and loss of speed on faster terrain.

Rear air suspension

This bike has a light 120-mm X-Fusion E1 air shock that has been specially adapted to fit this frame. It’s easy to adjust it according to your weight using the Schrader valve, for the right balance between sensitivity and performance.
A special high-pressure pump is required to adjust this shock (Rockrider fork and shock pump - ref: 3310286).

Double chainring derailleur and drivetrain

Two 9-speed chainwheels for 18 easy-to-use speeds.
The thru-axle bottom bracket is very stiff and long-lasting.

In detail:
-Shimano Altus 22- and 36-tooth double chainring
-Microshift FD-M462 front derailleur
-Shimano Altus rear derailleur
-Shimano Acera shifter with speed indicators
-Microshift H092 9-cog 11- to 36-tooth cassette
-KMC X9 chain

Handlebar, stem, and grips:

The adjustable stem brings the ST540 S controls close to your hands. The all-aluminum Rockrider stem is 80 mm (size M/L) or 90 mm (size XL) and can be raised to five adjustment intervals: + 0 mm, + 7.5 mm, + 15 mm, + 22.5 mm, + 30 mm.
In detail:
-720-mm oversized Rockrider aluminum handlebar
-Rockrider ergonomic grips for good traction and a comfortable feel.

Saddle:

Our teams developed an exclusive Rockrider Ergofit Evo saddle. Designed for all hip widths, its hammock shape is very comfortable for long, athletic rides. The aluminum Rockrider seat post, 31.6 mm in diameter and 400 mm in length, is lightweight and has a wide adjustment range.

Quick and easy tool-free adjustment of your saddle height using the adjustment lever on the seat post clamp.

Hydraulic disc brakes:

No matter what conditions you ride in, the Rockrider by Tektro 160-mm double hydraulic disc brakes will come through for you, even in the mud.
Hydraulic braking adds more power and progressive braking and requires less pressure on the brake levers.
The aluminum brake levers are easy to grip, lightweight, and precise.

27.5 wheels with double-walled rims and all-conditions tires.

The aluminum wheels are effective and sturdy: 27.5” diameter and double-walled rims. Their diameter offers the perfect balance between comfort and performance. With 28 spokes, they are lightweight, stiff, and durable.

The exclusive Rockrider All-Conditions Light 27.5x2.1 60 TPI wide tires have side knobs designed for riding on all types of terrain (dry, wet, etc.).

Tubeless-ready 23-mm rim: you will need rim tape, a Schrader valve, and a puncture sealant.

Platform pedals:

The ST540 S comes with Rockrider Flat platform pedals with a wider pedalling surface and larger dots for better grip on the pedals.

Easily transport and store your mountain bike

We added a quick-release system for easily attaching/removing the front wheel.
Tip: a bike rack is an easy way to transport your mountain bike without getting your car dirty.

Accessories:

Your ST540 S mountain bike comes with a bell, lights, wheel reflectors, and pedals.

The frame is compatible with:
-Front and rear mudguards, bottle cage, saddle bag, etc.

Comfort and safety

Your bike’s components (chain, derailleur, brakes, etc.) will adjust over time. Take advantage of a free servicing within 6 months after purchase. Our technicians will carry out a 13-point check of your bike. Just come to your nearest Decathlon workshop with your Decathlon card and/or receipt.

Legal disclaimer

To make components last longer, we recommend a maximum load of 120 kg (rider and MTB included).

Reviews

4.4/5 95 reviews
89 of 95 people recommends this product
Réglages soignés et bon rapport qualité prix
Nicolas (Canada) Used for 1 semaine ou moins
Réglé avec soin par le technicien du magasin de Québec (Joël?). Aucun équivalent en prix dans grandes marques. Très peu utilisé pour l'instant. En espérant qu'il résiste au temps.
Un très bon vélos…
Christophe (France) Used for 2 à 8 semaines Verified purchase What is a review "Verified purchase" ?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If review is not marked as "Verified purchase", this does not mean that the author's review has no experience with the product may have given his review directly on the site without unique identification, or the product has been offered or paid.

The label "Verified purchase" lets help you judge the reliability of a review.
Un très bon vélos
Avis pour vtt
Mickael (France) Used for 1 semaine ou moins
J'ai acheter se VTT a Decathlon narbonne j'ai fait 200m sur le parking et déjà un problème j'ai du le ramener pour le fair révisé ! Beaucouo de vus btr foirée, manque de serflex a certain endroit...
Je me régale vraiment…
Anthony (France) Used for 2 à 8 semaines Verified purchase What is a review "Verified purchase" ?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If review is not marked as "Verified purchase", this does not mean that the author's review has no experience with the product may have given his review directly on the site without unique identification, or the product has been offered or paid.

The label "Verified purchase" lets help you judge the reliability of a review.
Je me régale vraiment a utiliser ce vélo !! Top !!
un tres bon velos.…
Sebastien (France) Used for 2 à 8 semaines Verified purchase What is a review "Verified purchase" ?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If review is not marked as "Verified purchase", this does not mean that the author's review has no experience with the product may have given his review directly on the site without unique identification, or the product has been offered or paid.

The label "Verified purchase" lets help you judge the reliability of a review.
un tres bon velos. robuste
génial…
Véronique (France) Used for 7 à 12 mois Verified purchase What is a review "Verified purchase" ?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If review is not marked as "Verified purchase", this does not mean that the author's review has no experience with the product may have given his review directly on the site without unique identification, or the product has been offered or paid.

The label "Verified purchase" lets help you judge the reliability of a review.
génial
Super produit , dommage…
Patrice (France) Used for 3 à 6 mois Verified purchase What is a review "Verified purchase" ?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If review is not marked as "Verified purchase", this does not mean that the author's review has no experience with the product may have given his review directly on the site without unique identification, or the product has been offered or paid.

The label "Verified purchase" lets help you judge the reliability of a review.
Super produit , dommage qu'il n'y ai que 2 plateaux.
a voir sur la durée de vie des accessoires car beaucoup de bruits parasites (sifflement, claquement) que je n'ai jamais eu sur un vélo Lapierre en 10 ans d'utilisation.
incredible
Cyril (France) Used for 1 semaine ou moins
excellent velo
Excellent produit rien à…
Wilfried (France) Used for 2 à 8 semaines Verified purchase What is a review "Verified purchase" ?

Where review is marked as "Verified purchase" confirmed by Decathlon, this means that we could verify that the client who filed this opinion has purchased the product from us.

We can confirm purchases for the reviews expressed on a request by e-mail after purchase or when the customer has this review from his personal space.

If review is not marked as "Verified purchase", this does not mean that the author's review has no experience with the product may have given his review directly on the site without unique identification, or the product has been offered or paid.

The label "Verified purchase" lets help you judge the reliability of a review.
Excellent produit rien à redire
Encore un "VTT" pour chemin plat...
Julien (France) Used for 1 semaine ou moins
J'ai changé mon VTT520 il y a 1semaine après avoir eu une vingtaine de crevaison en a peine 1 ans de pratique malgré une vérification de l'état des chambres à air une bonne pression des pneus ainsi qu'une vérification de l'état de la jante. ..
Je suis donc passée sur un vélo de qualité supérieure avec le 540 S
Au final dès la première sortie la pédale ( en plastique pour un vélo de ce prix ) a rompu malgré une bonne utilisation...
Le dérailleur se dérégle sans cesse et il faut toujours réajuster celui ci pour un bon passage des vitesses...
Response of the brand

Bonjour Monsieur,


Tout d'abord je vous remercie pour votre retour d'expérience et votre fidélité malgré vos multiples crevaisons à répétition.

Je vous confirme que les pneus du ST 540 S ont une structure moins sensible à la crevaison que ceux du ST 520.

Concernant les pédales 520 Grip (qui équipent nos vélos ou qui sont vendues séparément), nous avons identifié un lot de pédales accusant un problème de fabrication et une faiblesse structurelle.

Vous devez être malheureusement concerné par ce problème qualité.

Je dois donc vous inviter à rejoindre votre magasin pour un échange des pédales incriminées sous garantie.

Concernant le dérailleur, il serait peut-être bon de profiter de votre visite pour faire faire le réglage par un technicien qualifié. A savoir que certains composants se mettent en place dans les premiers mois d'utilisation (tension de câble, tassage de gaine, ...) provoquant de légers dé-réglages. C'est pourquoi nous proposons la révision complète et gratuite de tous les réglages et serrages du vélo dans les 6 premiers mois qui suivent sa date d'achat. Surtout n'hésitez pas à solliciter ce service.

Désolé pour la gène occasionnée sur les pédales.


Sportivement.


Sylvain _ Chef de Produit