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2026 Rockrider

Mountainbike EXPL 50 hellgrau

A 27.5″ aluminum frame hardtail crosscountry bike with modest components and rim brakes.

Manufacturer Price

€259($295)
FrameAluminum
SuspensionHardtail, 80mm
Wheels27.5″ Aluminum
Drivetrain1 × 7
GroupsetmicroSHIFT
BrakesRim
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Insights
Gearing

A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

Lowest gear

(climbing)

25 mph

Mountainbike EXPL 50 hellgrau

27 mph

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Highest gear

(descending)

Specs
Build
Frame

Aluminum, hardtail, unisex with sloping top tube, sizes S (1.50 m) to XL (2.00 m)

Fork

Suspension fork with 80 mm travel, mechanical spring

Travel80mm

Stem

Aluminum, 90 mm length, 10° angle

Handlebar

Steel, 620 mm width

Saddle

Ergofit, wide hammock shape

Seatpost

Steel, 350-400 mm length, 27.2 mm diameter, rigid

TypeRigid

Pedals

Flat pedals, hard resin MTB

Grips

Soft-touch material

Groupset
Rear Derailleur

Microshift RD-M25

Front Derailleur

Microshift FD-M20

Crank

Triple chainring with 22, 32, 42 teeth, with guard

Shifters

Microshift MS25 twist shifters with gear indicator

Cassette

Shimano TZ500 or Wheeltop, 7 sprockets, 14-28 teeth

Chain

KMC Z51, wide robust

Brakes

V-brakes with brake pads

TypeRim

Wheels
Rims

27.5 inch with hollow chamber rims, 28 spokes

Tires

Dry 27.5 × 2.0, suitable for dry terrain

Accessories
Stand

Compatible with rear stand reference 8302792

Bell

Included

Rider Notes
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First added March 7

Last updated May 26

Not listed for 13 days