Bike Comparison
    MSRP
    ($1,265)$8,500
    Where to Buy
    $1

    At

    $8,500

    At Specialized

    Category
    Trail, E-BikeTrail
    Weight
    48.7 lbs26.7 lbs
    9.7
    Carbon
    Fork
    Suntour XCRFox Factory Float 34
    Shock
    Fox Float X Factory
    Wheels
    AluminumCarbon
    27.5″29″
    Brakes
    Mechanical DiscHydraulic Disc
    42Nm hub-drive
    Groupset
    X9X0 Eagle Transmission, X01 Eagle AXS
    Drivetrain
    1 × 12 Electronic
    Suspension
    HardtailFull
    Front Travel
    120mm130mm
    Rear Travel
    -120mm
    Brand Site

    decathlon.co.uk

    specialized.com

    Summary
    The Rockrider E-ST500 Electric Mountain Bike, - 27.5" is a 27.5″ hardtail trail e-bike with modest components and mechanical disc brakes.
    Similar Bikes
    Accessories
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    2024 Epic 8 EVO Pro
    Other Trail bikes
    Gear Range

    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)

    28 mph

    2024 Epic 8 EVO Pro

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    Frame

    FACT 11m Carbon, Progressive XC Race Geometry, Rider-First Engineered™, SWAT downtube storage, threaded BB, 12x148mm UDH compatible rear dropout, internal cable routing, 120mm of travel

    Fork

    Calmly overcome new obstacles (roots, rocks, gravel, etc.) thanks to the 120mm of travel in the Suntour XCR hydraulic fork. Our Rockrider mountain bike team worked with Suntour to design a superior lubrication and wiper seal for this electrically-assisted mountain bike. This ensures the fork stays sensitive over time.

    Travel130mm

    Spring TypeAir

    Fox 34 Factory, Grip2 Damper, 4 way adjust, 130mm travel, 44mm offset, 15x110mm

    Travel130mm

    Spring TypeAir

    Shock

    Fox Float Factory, Evol LV, Ride Dynamics Tuned, LSC/ Rebound adjust, 190x45mm

    Bottom Bracket

    SRAM DUB Threaded Wide

    Stem

    Raceface Turbine R, 50mm, 35mm clamp

    Handlebar

    Roval Control Rise Carbon Handlebar, 780mm wide, 20mm rise, 35mm

    Saddle

    Since your mountain bike rides will get longer and longer, it is important to have a suitable seat. So our teams designed the exclusive ROCKRIDER Ergofit Evo saddle. It fits all hip sizes and has a curved shape that is particularly good for sport trail rides. The 31.6 mm aluminium seat tube ensures compatibility with most dropper and suspension seat posts on the market.

    Body Geometry Power Expert

    Seatpost

    Fox Transfer Factory, 30.9, 1X remote, (SM:125mm, MD: 150mm, L-XL: 175mm)

    Grips

    Specialized Trail Grips

    Groupset
    Rear Derailleur

    SRAM X0 Eagle Transmission

    Crank

    The E-ST500 electric bike is equipped with a single chainring and SRAM X-SYNC anti-drop technology to prevent chain drops. A single shifter on the right handlebar makes it easy to shift between the 9 speeds. In detail:, - SRAM X-Sync 32-tooth chainring, - Shimano Altus M2000 9-speed rear derailleur, - Shimano Altus M2000 shifter with gear indicator, - Shimano Altus 9-cog 11-36 cassette, - KMC X9 chain

    SRAM X0 Eagle, DUB, 170/175mm, Alloy, 32T

    Shifters

    SRAM AXS POD Controller

    Cassette

    SRAM XS 1295, 12 speed, 10-52

    Chain

    SRAM X0 Eagle

    Brakes

    No matter the conditions you ride in, (dry, muddy, wet), the Hayes MX5 cable-operated disc brakes on the front and rear provide powerful, progressive braking. Oversized 180mm diameter discs provide even more power.

    Front: SRAM Code Silver Stealth, 4-piston caliper, hydraulic disc, 180/200mm HS2 rotor, Rear: SRAM Code Silver Stealth, 4-piston caliper, hydraulic disc, 180mm HS2 rotor

    Wheels
    Rims

    These wheels were specially designed for this mountain bike:, - 19 mm rim with 28 spokes at the front, - 23 mm rim (distance between flanges) with 36 oversize spokes at the back for more sturdiness and a good hold on wide tyres up to 2.5". - Cone hub with bearings (easy to maintain) at the front, - Sealed motor bearings at the rear, - TUBELESS compatible at the rear: you'll need rim tape, a TUBELESS tyre, a PRESTA valve and tyre sealant

    Roval Control, Carbon offset design, 29mm internal width, 4mm hook width, Tubeless ready, 28h

    Spokes

    Stainless, 14g, black

    Front Hub

    Industry Nine 1/1, 6-bolt, 15mm Thru-axle, 110mm spacing, 28h

    Rear Hub

    Industry Nine 1/1, 12x148mm thru axle, XD freehub body, 28h

    Tires

    So you feel safe on any terrain and for traction adapted to your motor, the E-ST500 mountain bike is equipped with Hutchinson Cougar 27.5" x 2.4" tyres. Our test riders particularly liked these tyres for their good grip. Mounted on wide rims, these tyres ensure grip, traction and comfort on any terrain.

    Front: Specialized Purgatory, GRID Casing, T9 Compound, 29x2.4, Rear: Specialized Ground Control, GRID Casing, T7 Compound, 29x2.35

    Electric Components
    Motor

    The motor on the rear wheel was co-developed with VISION for mountain biking:, - a torque of 42Nm to overcome any slope, - a 150x12mm hub to stand up to rough terrain, - and sealed bearings to withstand the weather, which can often be tough when mountain biking. What if you get a puncture? 8 Mm Allen key a needed to unscrew the wheel nuts. This tool is available in our 900 multi-purpose tool/bike multi-tool.

    Battery

    Our Rockrider mountain bike team has designed a battery that locks in place with a simple lever. Child's play! This locking system stops the battery getting shaken when you go adventuring on rough terrain. There is also a lock in case you want to stop your battery getting stolen. For example, if you park your bike in the street.

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