B'Twin Rockrider ST 530 MDB Mountain Bike

B'Twin Rockrider ST 530 MDB MTB

Photos of the ST 530 MDB

Spec for the Rockrider ST 530 MDB

This 27.5" MTB is designed for MTB rides lasting 2 to 3 hours, all year round.

Accelerate and brake easily to adapt to the terrain! The ST 530 MDB's single chainring and cable-operated disc brakes will revolutionise your mountain bike touring rides! Enjoy an upright position, adjustable stem, 100mm suspension and hammock saddle.

Adjust your speed without thinking: Single Chainring Drivetrain.

Control your trajectory: mechanical disc brakes, wide tyres and handlebar.

Light alu frame, 27.5" wheels, 9-speed single chainring. Rockrider offers a lifetime warranty on the frame, handlebars and stem.

Weight: 13.8 kg in size M (without pedals).

Frame material: Aluminium.

Type: Hardtail.

Wheel size: 27.5".

Fork travel: 100 mm.

Drivetrain: 1x9.

Brakes: Cable-operated.

Seat post: Steel.

Frame, stem and handlebar warranty: lifetime.

Weight: S: 13.7 kg.

M: 13,8 kg.

L: 13,9 kg.

XL: 14 kg.

Net weight without pedals.

Frame: Composition: 6061 aluminium. 135 mm x 9 mm rear axle.

QR axle. 68 mm threaded bottom bracket (BSA).

Seat tube diameter: 27.2 mm.

Straight head tube. 1 bottle cage mount / Pannier rack mount.

Drivetrain: 32 T single chainring (compatible with 30 and 34 T).

175 mm crank. "Square taper" bottom bracket. Microshift Advent.

9-speed shifter and rear derailleur. 11-42 cassette. KMC Z9 chain.

Suspension: Rockrider U-FIT fork. Coil spring. 100 mm travel.

Stanchion diameter: 28 mm. QR axle. 9 x 100 mm.

Wheels: 27.5". Tubeless ready rims, Schrader valve. 23 mm inner width (28 mm outer).

28 spokes. 6-bolt discs. Shimano / Sram freehub.

Brakes: Cable-operated disc brakes. Tektro TKD 68.

Number of pistons: 1.

Front disc: 160 mm.

Rear disc: 160 mm.

Adjustable reach: Yes.

Riding position: Handlebar: Rockrider Sport.

Material: Aluminium.

Width: 720 mm.

Stem: Rockrider.

Material: Aluminium.

Size: 70 mm (S), 80 mm (M / L), 90 mm (XL).

Can be raised by 30 mm.

Grips: Rockrider SPORT.

Saddle / Seat post: Rockrider Ergofit saddle.

Rockrider Sport seat post.

Material: Steel.

Diameter: 27.2 mm.

Length: 400 mm.

Tyres: Rockrider All Conditions. 27.5"x2.0".

Carcass: 30 TPI.

Pedals: Rockrider 520 Grip resin flat pedals.

Warranty: Lifetime (frame, stem, handlebar).

Availability of spare parts: 2 years. Weight without pedals.
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B'Twin Bikes

B'Twin are a popular choice of bike in the UK, partly due to their widespread distribution by Decathlon, and partly due to the value they offer. Their bikes are divided into several slightly overlapping ranges, with Triban best known for road and gravel bikes, and Rockrider gaining a reputation for high performing MTBs to suit every budget. Elops largely consist of a range of city bikes, whereas Riverside focus on hybrids. All in all, B'Twin bikes are well worth checking out given the size of their ranges; there's a model to suit most budgets.

Rockrider Mountain Bikes

Rockrider are Decathlon's off-road offerings, comprising of a series of kids bikes and adult hardtails, full suspension steeds and even a handful of high end E-MTBs.

This brand was launched in 2018, when Decathlon decided to split their B'Twin bikes into different genres. In terms of prices, there's something for everyone, with adult's MTBs starting at just over £200 and rising up to high end lightweight race bikes at nearly the £4000 mark.

If you want to ride off-road, and would prefer to buy from Decathlon, then the Rockrider mountain bike range is for you.