Decathlon Rockrider E-ST100: An In-Depth Look for Indian E-MTB Enthusiasts



Electric mountain bikes (e-MTBs) are rapidly gaining traction in India, and the Decathlon Rockrider E-ST100 is a compelling option for enthusiastic riders seeking an affordable and capable trail bike. Here’s a detailed breakdown to help you decide if it’s the right e-MTB for you

Built to Conquer Trails

The E-ST100 is a true e-MTB, featuring:

  • Powerful Motor: The 250W rear hub motor with 42 Nm torque provides ample power to climb hills and navigate technical sections.
  • Long-lasting Battery: The 380 Wh Samsung Lithium-ion battery offers a claimed range of up to 100 km on Eco mode (flat terrain), making it ideal for exploring further. Three assist modes (Eco, Standard, Boost) tailor assistance to your needs. The detachable battery allows for convenient charging.
  • Durable Frame: The 6061 aluminum frame with hydroformed tubes is designed for a balance of weight and strength, backed by a lifetime warranty for peace of mind.
  • Suspension: The Suntour XCT fork with 100mm travel absorbs bumps and roots, enhancing comfort and control on trails. While a hardtail design, the frame is compatible with dropper posts for additional control on descents (sold separately).
  • Reliable Braking: Powerful hydraulic disc brakes with 180mm rotors ensure confident stopping power in all conditions.
  • Drivetrain: MicroSHIFT drivetrain with an 8-speed cassette offers a wide range of gears for tackling climbs and varied terrain (specific gear ratios not mentioned).
  • W tubeless-ready wheels: 27.5″ wheels with wide, grippy 2.35″ Ralston E-MTB tires provide excellent traction on loose surfaces. These wheels are tubeless-ready, allowing you to upgrade to a tubeless setup for better puncture resistance and a lighter ride quality (tubeless valves and sealant sold separately).

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Key Features

  • Ergonomic Design: The Rockrider ErgoFit saddle and raised handlebar position enhance comfort and control on longer rides.
  • Sized for You: Available in three sizes (S, M, L) to accommodate riders from 150 cm to 184 cm. Test rides and store pickup are available in select Indian cities (refer to Decathlon website for details).
  • Compliant with Indian Regulations: The motor cuts out at 25 km/h, adhering to ARAI (Automotive Research Association of India) standards.

Additional Details

  • Weight: M – 22.3 kg, L – 22.4 kg (net weight without pedals).
  • Display: LCD control screen provides various data points like speed, distance, battery level, and selected assist mode.
  • Walk Assist: A “pedestrian mode” allows for easier maneuvering when walking the bike.
  • Assembly: Some assembly might be required upon purchase.
  • Fenders and lights: Not included and would need to be purchased separately.
  • Warranty: Lifetime warranty on the frame, 2 years or 500 charging cycles on the battery.

Table 1: Decathlon Rockrider E-ST100 Specifications

Frame Material6061 Aluminum with hydroformed tubes
Size OptionsS (150-164cm), M (165-174cm), L (175-184cm)
Weight (without pedals)M: 22.3 kg, L: 22.4 kg
Motor250W rear hub motor
Torque42 Nm
BatterySamsung Lithium-ion, 380 Wh
Claimed Range (Eco Mode)Up to 100 km (flat terrain)
Assist ModesEco, Standard, Boost
DisplayLCD control screen
Suspension (Front)Suntour XCT fork, 100mm travel
BrakesTektro TKD68 Mechanical disc brakes, 180mm rotors (front and rear)
Wheels27.5″ tubeless-ready
TiresRalston Vector 27.5″ x 2.35″ E-MTB
DrivetrainMicroSHIFT drivetrain, 8-speed cassette (specific gear ratios not provided)

Cost Considerations

  • Price: ₹84,999 (subject to change)
  • Running Cost: Estimated electricity consumption per full charge is 0.38 units (assuming ₹6 per unit, this translates to ₹2.3 per charge).

Who Should Consider the Rockrider E-ST100?

The E-ST100 is a great option for Indian riders seeking an affordable entry point into the world of e-mountain biking. It’s ideal for exploring trails, enjoying exercise with a boost, and navigating city streets with ease.

Things to Consider

  • Hardtail Design: While capable, the hardtail design might be less comfortable on very rough terrain compared to full-suspension e-MTBs.
  • Limited Availability: Stock might be limited at times, so checking online or calling your nearest store is recommended.

Overall, the Decathlon Rockrider E-ST100 offers a compelling package for Indian e-MTB enthusiasts, balancing affordability with trail-worthy features. If you’re looking for a fun and capable way to explore the outdoors on electric power, the E-ST100 is definitely worth considering.

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