Decathlon is now open at The Avenues Mall, first avenue, level 1, for the full list of stores please click here

Product Colors and Sizes

Special product, Innovation Special product, New Release Special product, Sale End series Personalize me Eco-design

Women's 27.5" Mountain Bike - Navy Blue

Sale price: 133.000 KD Regular price:
Color: Choose a color
Size: Select a size
Sale price: 133.000 KD Regular price:
Model: 8587688

Product Features

A photo of the Women's 27.5" Mountain Bike - Navy Blue in use

Women's 27.5" Mountain Bike - Navy Blue : This mountain bike has been designed by us especially for women getting started with mountain biking, for rides of up to 90 minutes in dry weather.

The women's bike features a raised position, an ergonomic saddle and 27.5" wheels for comfort when riding. It also offers disc brakes and quick shifters.

Directional control

Dual mechanical disc brakes and tyres with side knobs for more grip


Smooth riding: light aluminium frame, 24 speeds and fast rolling tyres.


An ultra-strong MTB: welded saddle, double-wall rims.

Ease of use

Adjust the fork using a dial from 45 kg. Adjust the saddle with one movement.

Lifetime warranty

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

Product Lifestyle Image gallery

Image gallery







Product Reviews

Skip to reviews AR en
352 reviews

Women's 27.5
Filtered by translation missing: Loading reviews…
Excellent bike

Excellent service, great bike with smooth ride

icon-circle-checkmark Verified purchase
Womens 27.5 mountain bike ST 520

Loving this bike alot!

icon-circle-checkmark Verified purchase
Good enough

Not an amazing bike, still heavy by today's standards and you can see where the savings are made. But still at this price you really can not complain! Just wish Decathlon could sort out their supply chain, I need sooo much more!!

icon-circle-checkmark Verified purchase
bang for your buck

awesome bike for how affordable it is - L size was perfect for my long legs .. anyone looking for something to bike to work on but equally shred some trails , this will do nicely

icon-circle-checkmark Verified purchase
Great value for money.

I would had preferred the cheaper model if it was possible, but I can't complain as my wife is more than happy with the bike. A small side note about transport damage in the form of scuffed paint but as it is a bike that will be used and abused, this was a small point.

icon-circle-checkmark Verified purchase
Стрехотен велосипед

Много съм доволен

icon-circle-checkmark Verified purchase

Това е велосипеда, който търсех - удобен и стабилен.

icon-circle-checkmark Verified purchase
Dobrá kvalita

Super za ty peníze

icon-circle-checkmark Verified purchase
Za málo peněz hodně muziky

Po 500 metrech se povolila levá klika tak ze nic moc . Za týden jsem koupil st 530 a to stejně. Tak že příští kolo si sestavím sám. Jinak kola super za tu cenu

icon-circle-checkmark Verified purchase

Dcera ho koupila teď v zimě, ale už ho vyzkoušela je s kolem velmi spokojena.

icon-circle-checkmark Verified purchase

Jezdí se na něm dobře. Od této značky máme více kol. Jsme s nimi spokojeni

icon-circle-checkmark Verified purchase
Dámské horské kolo 27,5" ST520 modré - super

Vše v naprostém pořádku, dcera jej využívá 2x denně a je velmi spokojená.

icon-circle-checkmark Verified purchase
kolo pro běžné rekreační cyklisty. zvládne i terén

spokojenost, doporučuji

icon-circle-checkmark Verified purchase


icon-circle-checkmark Verified purchase

Dobrý den, manželka je s kolem spokojená ne 100% ale tak na 80, vzhledově se jí velmi líbí. Kolo jsme objednávali na eshopu s dodaním na prodejnu protože všechny cyklo jsou vymetené i náhradní díly také jsme museli objednat na které čekáme. Kolo nám tam smontovali dohromady měli problém s přehazovačkou která nebyla prý moc dobře seřízená i musíme navštívit servis po 60km ujetých na určitém převodu divně cvaká při jízdě do kopce dokonce se ji na středním kole řetěz zahryzl do rámu tak tam má první šrámy. Brzdy hodnotí velmi dobře, brzdí na 1. Nastavení tuhosti pružení předních vidlic je pro ní strašně složité a nemůže s kolečkem skoro pohnout, musíme ještě zkusit vy zjistit na servisu. Jinak jsem kupovali jiné sedlo, gelové a zde jsme narazili na další problém i když je cenoví rozdíl sedlovky 10kč od nastavitelné na originálu je namontován bez možnosti nastavení úhlu sedla, velké - stojánek na kolo i to není vychytané kupovali jsme středový jako vždy ale problém je že při namontování doma zjištěno že ze spodu je vedené lanko na přehazovačku a není zde možnost přidělaní na imbusový šroub, tak že do držáku stojánku jsem musel vyříznout drážku pro lanko. Tak to jsou naše poznatky ke kolu.

icon-circle-checkmark Verified purchase
Skip to reviews

Additional Product informations



  • 100% Aluminium

Which is the right size?

Here are our tips for adapting this mountain bike to your height and body shape:S: between 1.50m and 1.64mM: between 1.65m and 1.74mL: between 1.75 m and 1.84 m1/ Sitting on the saddle, you should be able to touch the ground with the tips of your toes.2/ To adjust the saddle height, your knee should be slightly flexed with the foot on the pedal in the lowest position.3/ If you're between two sizes, choose the larger size.

The women's rockrider mtb project

Designed and developed entirely in France at the B'Twin Village (Lille). The team studied the features of the female form and used this to design and test the ST 520, aided by real mountain bikers at every stage of the process.Our aim is to make you want to jump onto your comfortable, easy-to-use mountain bike so that you enjoy every one of your rides.

A mountain bike designed for women

We carried out studies to create a mountain bike specially designed for women. These included studies with the Decathlon Sports Lab, and real-world tests with hard-core women mountain bikers. 6 months later, this was the result: a bike with positioning elements designed for women!- An adjustable fork based on your weight.- A shorter, adjustable stem.- A shorter distance between the grips and brake levers.

A comfortable, playful frame

It isn't always easy to get the right position on a mountain bike. Our designers created a frame that's easy to get onto.The CGF frame (Comfort Geometry Frame), made of 100% aluminium, provides excellent comfort and manoeuvrability.The incline on this women's model, paired with the 60 mm stem, keeps your back straighter, while the shorter chain stays give you good agility on corners.No more aching back or neck!

Front suspension for added comfort!

You can adjust how stiff the suspension is using the dial on the fork based on your weight (riders over 45 kg) so that roots and stones are easier to get past. This UFIT technology is patented and exclusive to Decathlon. Simply turn the dial!The 80 mm front suspension is designed for slightly uneven trails, helping you to get past your first obstacles with no problems. Its mechanical spring system guarantees reliability and easy maintenance.

How to change speeds

3 x 8 speeds, 24 speeds total!2 shifters on the handlebar.Left (chainrings): control ascents/descents.Right (speeds): more precise control over your pedalling.In detail:-22, 32 and 42 triple chainwheel guard + protection from grease-SHIMANO ALTUS front derailleur-MICROSHIFT RD-M46-L rear derailleur-MICROSHIFT TS39 shifters-SHIMANO 8-speed cassette (11 to 32 teeth)-KMC Z7 wide and sturdy chain

Comfortable saddle

The ST 520's saddle fixing (welded) prevents any saddle movement during your mountain bike rides.Want an even comfier saddle? Add a saddle cover. Adjust your saddle height quickly and without tools using the quick-adjust lever.

Get a grip on your braking

The Hayes MX 160 mm double disc brakes provide powerful, progressive braking at the front and rear. The aluminum Tektro brake levers are light, precise, and easy to hold. The brakes can be applied using only two fingers.We recommend that you have your brakes checked at least once a year.The brake levers are closer on the ST 520 women's mountain bike for a more comfortable position!

Ready to roll?

Take on your first obstacles! The Aero Trail Evo aluminium wheels are efficient and robust: 27.5" with double-walled rims. Their diameter offers an excellent balance of performance and comfort. With their 28 spokes, they are lightweight, stiff, and durable.The exclusive 27.5" x 2.0 B'TWIN ALL TERRAIN DRY tyres are designed for dry terrain. Their side lugs provide good traction during turns. Recommendations for pressure based on the cyclist's weight are marked on the sidewalls.

Platform pedals

The women's ST 520 comes with platform MTB pedals mounted on bearings, made from hard resin for light weight and safety.If your foot slides on the pedal, there's less risk of injury.

Easily transport and store your mountain bike

Not all rides start on your doorstep. This is why we've made it easy to remove and attach the front and rear wheels. They are equipped with a quick-release system making it quick and easy!A bike carrier will make your life easier if you want to avoid dirtying your car.

Compatible accessories

Your ST 520 women's mountain bike comes with a bell, lights, wheel reflectors, and pedals.The frame is compatible with:- front and rear mudguards,- stand,- bottle cage,- saddle bag,- rear pannier rack,- child seat (add an additional pannier rack for sizes S and M to avoid touching the rear wheel)etc.

Our advice for your first rides

If you are a beginner, we recommend wearing 3/4 tights or shorts with a foam pad. Alternatively, try a gel saddle pad to make sitting in the saddle comfierFor longer rides, it's always a good idea to take something to drink in a hydration backpack or a water bottle.Even for short mountain bike rides, a helmet, gloves and glasses are highly recommended!

Instructions in sight

The stickers, which are resistant to wear, tell you how to adjust your bike:- adjusting the fork,- tyre pressure (on the wheels) and type of valve for the pump.- rim diameter- adjusting the saddle height, etc.When you're getting set up, it's super handy having the instructions on the bike itself!For other information (washing, chain maintenance, etc.), please refer to our bike care guide.

Product Recently viewed


Size Guide Visual