Rockrider REFURBISHED 27.5 INCH MOUNTAIN BIKE ST 540-MEDIUM

This is a grade A product and has been either quickly tested or returned by our customers. It is still in good working order but cannot be sold as new.

WARRANTY
Lifetime (frame, stem, handlebar). Availability of spare parts: 2 years.

This 27.5″ mountain bike has been designed and developed to best suit mountain-bike rides lasting two to three hours, all year round, in any conditions. Discover the effectiveness and playful side of the ST 540 with 27.5″ double-walled rims, hydraulic disc brakes, and the simplicity of its 18-speed double chain wheels. All whilst staying comfortable. This item has been checked and if necessary refurbished by our expert team of specialists so it can be sold online and in our stores as a Second Life product at a discounted price.

ADVANTAGES
-Enjoy an upright position, adjustable stem, 100mm suspension and hammock saddle.
-Control your trajectory: hydraulic disc brakes, wide tyres and handlebar.
-Ride efficiently thanks to 27.5″ wheels, 18 speeds and light tyres.
-Lock the fork in one quick step, and adjust the saddle effortlessly.
-Rockrider provides a lifetime warranty on the frame, stem and handlebar.

TECHNICAL INFORMATION
Which is the right size?
Several sizes available:
S: between 1.50m and 1.64m
M: between 1.65 m and 1.74 m
L: between 1.75 m and 1.84 m
XL: between 1.85 m and 2.00 m
If you are 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 performance).

UNISEX FRAME
With a heavily sloped top tube and a wide range of sizes (from S: 1.50m to XL:2.00m).
The ST 540 mountain bike frame is UNISEX.
The ST 540 mountain bike is available with the same frame in a WOMEN’S version: fitted seat, narrower handlebar, shorter stem, fork with a more flexible spring, and brake levers that are closer together.
As a WOMAN, if you choose the MEN’S model, we recommend at least purchasing the WOMEN’S SPORT 500 saddle which is fitted to the female form.

A WORD FROM THE TEAM
The ST 540 mountain bike was fully designed and developed by our passionate MTB team at the B’Twin Village in France (Lille).
A comfortable, efficient mountain bike: more progressive, powerful hydraulic disc brakes, 100mm travel in the fork to easily ride over obstacles, and simple and effective double chainring,…
MTBers have been involved at every stage of this bike’s development process.

A COMFORTABLE, PLAYFUL FRAME
For less weight and more efficient pedalling, the Rockrider ST 540 MTB frame is made from 6061 aluminium (only 2.1 kg in size M).
Our designers created this bike to be comfortable and easy to manoeuvre. Its slope has been designed to keep your back straighter. The lower bottom bracket helps keep you more stable during turns.

100 MM FRONT SUSPENSION
Ride over obstacles with the hydraulic fork. Its 100 mm travel allows you to calmly overcome more obstacles (roots, pebbles, stones, mud).
Its built-in lockout system helps to prevent bobbing and loss of speed on faster terrain.

DOUBLE CHAINRING DERAILLEUR AND DRIVETRAIN
2 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 shifters with speed indicators
-MICROSHIFT H092 9-cog 11 to 36 tooth cassette
-KMC X9 chain

HANDLEBARS, STEM, GRIPS
The adjustable stem brings the ST 540 controls to your hands. The all-aluminium Rockrider stem is 70 mm (size S), 80 mm (size M/L), or 90 mm (size XL) and can be raised to 5 adjustment intervals: + 0mm, + 7.5mm, + 15mm, + 22.5mm, + 30mm.

In detail: – 720mm oversize Rockrider Sport aluminium handlebar

• Rockrider Sport “soft touch” ergonomic grips for good grip and a comfortable feel.

HYDRAULIC DISC BRAKES
No matter what conditions you ride in (dry/wet), the Rockrider by Tektro 160mm double hydraulic disc brakes will come through for you, even in the mud.
Hydraulic braking adds more power and progressive braking and requires less powerful use of the brake levers.
The aluminium brake levers are easy to grip and precise.

EASILY TRANSPORT AND STORE YOUR MOUNTAIN BIKE
We added a quick release system for easily removing/reattaching the front wheel.
Our advice: a bike rack is an easy way to transport your mountain bike without dirtying your car.

COMFORT & SAFETY
Your bike’s fittings (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 inspection of your bike. Just come to your nearest Decathlon workshop with your Decathlon card and/or receipt.

bike frame material

aluminium frame

place of practice

outdoor

suspension type

spring suspension

suspension

with suspension

type of brakes

hydraulic disc brakes

suspension travel

100 mm

number of chainrings

double chainring

wheel size

27.5″

mudguard

without mudguard

level of practice

intermediate

condition

returned

number of speeds

18 speeds