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Rockrider 27.5"+ Electric Hardtail MTB Bike E-ST 900

Model year: 2024 MountainTrail Electric bicycle Manufacturer page (opens in a new tab)
Price
Not published
United Kingdom
£1,999 Last known price
Fork travel
120 mm
Wheels
27.5″
Gear range
382%
Battery
599 Wh
Weight
22 kg 48.5 lb · Reference configuration not specified
Brakes
Hydraulic disc

Not published by the manufacturer

  • Sizes and geometry

Components

3 of 12 identified

Parts found in a manufacturer catalog show their brand, model and key numbers, and the steps show how precisely they are identified: brand, series, model, or the exact product. The info button has every detail and the text the manufacturer published.

Electric system

3 parts
  • Battery

    500 to 599 Wh Not identified

  • Charger

    sector Not identified

  • Motor

    middle position Not identified

Suspension

1 part
  • Fork

    suspended fork Not identified

Specifications

Frame and fork

Intended fit
  • Unisex
Bicycle weight
  • 22 kg
  • 48.5 lb

Suspension

Suspension configuration
  • Hardtail
Front travel
  • 120 mm

Drivetrain

Derived by Bikelake
Front chainrings
  • 1
Smallest chainring
  • 34
Largest chainring
  • 34
Smallest sprocket
  • 11
Largest sprocket
  • 42
Lowest gear
  • 22.3 in
Highest gear
  • 85.0 in

Technical analysis

4 measures

How these figures sit among bicycles of the same class and model year. Context, not a ranking.

Front travel

120 mm

This value is within the central range for this class.

Cohort
Mountain / Trail Model year: 2024
Sample
2,032 bicycles with this information
Coverage
96.6% of the class

Lowest gear

22.3 gear inches

This value is above the central range for this class.

Cohort
Mountain / Trail Model year: 2024
Sample
1,555 bicycles with this information
Coverage
73.9% of the class

Gearing

Estimated speeds at 80 rpm

This bicycle

Lowest gear
8.5 km/h
Highest gear
32.6 km/h

Total gear range 382%

Pedaling rhythm
80rpm
40
60
80
100
120

Lineup changes

The published facts that differ across this family's builds and from the same model a year earlier. Missing information never counts as zero.

Differences across 2024 builds

Differences across 2024 builds
Specification This bicycle Rockrider 27.5"+ Electric Hardtail MTB Bike E-ST 900 Rockrider 27.5" Hardtail Electric Mountain Bike E-ST 100 Rockrider 27.5" Hardtail Electric Mountain Bike E-ST100 Rockrider 27.5" Hardtail Electric Mountain Bike E-ST 500 Rockrider 27.5" Hardtail Electric Mountain Bike E-ST520 Rockrider 29" Hardtail Electric Mountain Bike E-EXPL 520
Frame
Bicycle weight 22 kg 21.5 kg 22.5 kg 22.5 kg 22.1 kg 24 kg
Frame material Not informed Aluminum Aluminum Aluminum Not informed Aluminum
Suspension
Front travel 120 mm 100 mm 100 mm 120 mm 120 mm 130 mm
Drivetrain
Front chainrings 1 Not informed Not informed 1 Not informed 1
Smallest chainring 34 Not informed Not informed Not informed Not informed Not informed
Largest chainring 34 Not informed Not informed Not informed Not informed Not informed
Smallest sprocket 11 11 11 12 Not informed Not informed
Largest sprocket 42 34 34 42 Not informed Not informed
Lowest gear 22.3 in Not informed Not informed Not informed Not informed Not informed
Highest gear 85.0 in Not informed Not informed Not informed Not informed Not informed
Rear sprockets Not informed 8 8 8 9 8
Brakes
Brake type Hydraulic disc Mechanical disc Mechanical disc Hydraulic disc Hydraulic disc Hydraulic disc
Electric bicycle systems
Battery capacity 599 Wh 380 Wh 380 Wh 420 Wh 499 Wh 500 Wh
Other specifications
Tire width 2.8″ 2.2″ 2.2″ 2.35″ 2.4″ 2.4″
Wheel size 27.5″ 27.5″ 27.5″ 27.5″ 27.5″ 29″
Fork spring Not informed Coil Coil Coil Not informed Coil

No exact 27.5"+ Electric Hardtail MTB Bike E-ST 900 publication is available for 2023.

Other models in this family

7 models

Published versions from the same family and model year.

Rockrider 27.5"+ Electric Hardtail MTB Bike E-ST 900, by Rockrider

This bicycle

E-bike, Trail

27.5"+ Electric Hardtail MTB Bike E-ST 900

  • Weight: 22.0 kg
  • Suspension: 120 mm

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