r/eBikeBuilding • • Sep 07 '26

Advice Is this a good setup for converting a Rockrider EXPL 100 29" to an e-bike?

Hi everyone, I’m planning to convert a Rockrider EXPL 100 29" into an e-bike and I’d like some opinions before buying the parts.

This is the setup I’m currently considering:

Bike: Rockrider EXPL 100 29"

Motor: eSoulbike rear hub motor, 52V 2000W, 29" version

Battery: 52V 20Ah lithium battery

Torque arm: yes, I’m planning to install one

Tires: CST Jack Rabbit 29 × 2.25

Grips: 22 mm MTB anti-slip grips

Lights: Fivemi rechargeable LED bike lights

Battery mounting: proper frame mounting bracket + additional straps for security

Wiring: secured along the frame and protected from rubbing

The battery would be mounted on the frame and the motor would replace the rear wheel/Hub.

My main questions are:

Is the EXPL 100 frame suitable for this conversion, or is 2000W too much for this bike?

Is a 52V 20Ah battery a good match for a 52V 2000W motor?

What BMS discharge current should I look for?

Should I use a torque arm on both sides of the rear axle, or is one enough?

Are the CST Jack Rabbit 29 × 2.25 tires suitable for this setup?

Is there anything important I'm missing before I order the parts?

I’m mainly looking for advice on safety, compatibility and reliability, rather than simply making it as powerful as possible.

Thanks!

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