Mountain bike touring st 120 grey orange 27.5″

Technical information

Weight
S: 15.1 kg
M: 15.2 kg
L: 15.3 kg
XL: 15.5 kg

Lightweight, Comfortable, and Playful Frame
Our designers have created a new, easy-to-mount frame. This CGF (Comfort Geometry Frame) made entirely of aluminum is both comfortable and easy to handle. The geometry has been designed to keep your back upright while shortening the rear stays to ensure good agility when cornering.

Derailleur and Transmission: A Single Chainring Like the Pros!
Discover the efficiency and ease of a single chainring:
1 chainring and 9 speeds.
Accelerate on flat terrain and easily tackle uphill climbs without compromise.
With just one shifter on the handlebars, no more thinking!

ROCKRIDER FC ATB 100 single chainring – 32 teeth with 2 chain guides (anti-derailment)

MICROSHIFT RD-M46-L Rear Derailleur

MICROSHIFT SL-759 Right Shifter with speed indicator

MICROSHIFT H092 Cassette (9 cogs, 11 to 36 teeth)

Strong KMC Z9 Chain

Front Suspension
The 80mm front suspension allows you to comfortably tackle your first obstacles on slightly rugged trails.
Easily adjust the hardness with U-FIT (Weight Adjuster) technology. Simply turn the dial on the fork to match your weight (from 55kg to 105kg).

27.5″ Wheels and Tires for Dry Terrain
The ST 120 wheels are forgiving and robust, with 19mm rims and 28 spokes on 27.5-inch double-wall rims.
Conquer your first obstacles with ease: small stones, roots, holes, and bumps!
The DRY 27.5 x 2.0 tires are ideal for dry terrain, with optimized rolling efficiency thanks to a central tread and lateral studs for good grip in turns.

Mechanical Disc Brakes
The 160mm TEKTRO TKD 68 mechanical disc brakes offer powerful and progressive braking at the front and rear.
The TEKTRO brake levers are made of aluminum, easy to grip, and precise. Only two fingers are needed for braking.
For optimal braking, perform 3 or 4 series of 10 dry and intermittent brake applications to break in your brake pads.
Consider having your disc brakes serviced once a year.

Handlebar, Stem, Grips
With its 10° upward-angled stem, the ST 120 mountain bike’s handlebar setup is raised, accessible, and comfortable.

90mm aluminum stem with 10° angle for maximum comfort

640mm aluminum handlebar for stability and control

Soft-touch grips for excellent grip and a comfortable feel.

Saddle
The welded saddle mount on the ST 120 prevents saddle movement.
We offer an exclusive ERGOFIT saddle, which is wider with a hammock shape for better comfort.
Easily adjust the saddle height with the 350mm or 400mm (depending on size) steel FLEX seat post. The 27.2mm diameter provides flexibility, offering 30% more than standard posts.

Flat Pedals
The ROCKRIDER ST 120 mountain bike comes with hard resin flat pedals for lightness and safety.
If your foot slips off the pedal, the risk of injury is reduced.

Transport and Storage
To easily remove and install the front wheel, we’ve added a quick-release system.
Our advice: A bike rack is a simple way to transport your mountain bike without dirtying your car.

Which Mountain Bike Size to Choose?
Several sizes available:

• S: 1.50m to 1.64m

• M: 1.65m to 1.74m

• L: 1.75m to 1.84m

• XL: 1.85m to 2.00m
  To adjust the bike to your size and morphology, follow these tips:

While sitting on the saddle, your feet should just touch the ground.

When adjusting the saddle, your knee should be slightly bent with your foot at the lowest pedal position.

If you’re between two sizes, choose the larger size.

Accessories
Your ST 120 mountain bike comes with a bell, front and rear lights, wheel reflectors (catadiopters), and pedals.
The frame is compatible with:

Central stands 300 (ref. 8172767) and 500 (ref. 8172769)

Bottle holders 100 (ref. 8049106) and 500 (ref. 8358133)

MTB mudguard kit (ref. 8385291)

Saddle bags 100 (ref. 8347394) and 500 (ref. 8354448)

Rear rack 500 (ref. 8364376)

Baby seat 100 (ref. 8486913 and 8487125) for sizes M and above.

Warranty
Lifetime warranty (frame, stem, and handlebars). Spare parts availability: 2 years.

Weight
15.2 kg