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  • Thunder Step-Thru RX Electric Bike
  • Bicycle handlebars with a screen on a road
  • Electric bike on a paved road with trees and clear sky in the background
  • White electric bike on a paved road with trees and signs in the background
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Thunder

Thunder Step-Thru RX Electric Bike

Thunder Step-Thru RX Electric Bike

$2,199.00 CAD
$2,399.00 CAD $2,199.00 CAD
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The Thunder Step-Thru RX Electric Bike is a practical step-through commuter e-bike designed for everyday city riding, errands, and longer recreational trips. It features a 500W Bafang G02 rear hub motor with up to 80 N·m of torque, paired with a 48V 17.5Ah Samsung lithium-ion battery (840Wh) and a manufacturer-listed range of up to 120 km.

With 26" × 1.95" Kenda tires, Tektro hydraulic disc brakes, a MOZO adjustable suspension fork, Shimano 7-speed gearing, a thumb throttle, integrated lighting, and a rear cargo rack, the Thunder Step-Thru RX combines easy mounting with comfortable and practical commuter-focused components.

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Assembled, tuned & safety-checked before pickup
1-year local warranty · in-house service team
Free local pickup in Vancouver, or shipping across BC

Free installation: Ask us for FREE installation when you pickup your purchased item

Shipping & Returns

In-store pickup available. Local support and e-bike service are available through ProMechBC. Returns and exchanges are subject to store policy, product condition, and final-sale or special-order rules where applicable.

Fit & Sizing

Best for riders who want easier mounting, upright comfort, and a practical layout for commuting, errands, and everyday use.

View full details
500W hub motor Motor power
Up to 120 km Range per charge
Urban commuter class Top speed
Vancouver workshop Free local pickup — 1199 Grant St.
Why riders choose the Thunder Step-Thru RX

What makes it a step-through commuter e-bike.

Every figure below is labelled with where it comes from, so a manufacturer’s claim never reads as a measurement.

01 Power

Null, geared for gradient

Bafang Hub Motor 500W 48V G02 80 N.m. Watts set the ceiling; what you feel on a grade is how much pulling power is available low in the range, where a climb from a standstill actually happens.

Vancouver is not a flat city, and a bike specified for one is obvious within a week. Assistance that holds its character on a sustained grade, rather than fading as the motor heats, is the difference between arriving comfortable and arriving determined never to take that route again.

  • 500 WMotor

Any climbing claim assumes a rider putting in their share. A throttle-only ascent drains the pack far faster than the range figure suggests.

Null, geared for gradient
Thunder Step-Thru RX Electric Bike — Bafang Hub Motor 500W 48V G02 80 N.m
02 Range

Up to 120 km claimed, and what that means

Up to 120 km claimed, 48V 17.5Ah Samsung Li-ion. The figure that shapes your week is not the maximum but the margin left at the end of an ordinary day, in the cold, with the lights on.

Range is the most quoted figure in this category and the least reliable, because it is measured in the conditions most favourable to it. What actually shapes your week is charge time and how much margin you have left at the end of a normal day — a pack you top up twice a week without thinking about it beats a bigger one you have to plan around.

  • 120 kmClaimed range
  • 48 VBattery

Up to 120 km is the manufacturer's figure, measured on flat ground, in warm weather, with a light rider holding a steady low speed. Vancouver hills, winter temperatures and stop-start traffic all cost you range. We have not yet run our own road test on this one; when we do, the tested figure goes in the spec table beside the claim.

Up to 120 km claimed, and what that means
Thunder Step-Thru RX Electric Bike — 48V 17.5Ah Samsung Li-ion
03 Control

Null, and why it matters

Hydraulic disc brakes - Tektro disc 180 mm, 26x1.95" tyres. Stopping distance is set by the contact patch as much as by the caliper: hardware can only ask for as much grip as the tyre has to give, which is why both are quoted here rather than just the one that sounds impressive.

Stopping distance is set by the tyre as much as by the caliper. The best brakes in the world cannot exceed the grip available, which is why contact patch, compound and pressure matter as much on a wet Vancouver morning as the hardware clamping the rotor.

  • 27.2 kgWeight

BC requires a standard e-bike to stop from 32 km/h within 9 m on clean, level pavement. That is a dry-surface test — assume noticeably longer in Vancouver rain, and leave the gap to prove it.

Null, and why it matters
Thunder Step-Thru RX Electric Bike — 26x1.95"
04 Comfort

Sized for 73"x28"x42" LxWxH

Size: 73"x28"x42" LxWxH, Step-Thru frame. Fit decides whether a bike is still being ridden in month three, and it is the one specification a photograph cannot tell you — reach, standover and saddle height interact, and two riders of the same height with different inseams want genuinely different setups. It weighs 27.2 kg, which is worth knowing before you commit if it has to come up a flight of stairs or onto a bus rack at the end of the ride.

Come and stand over it. Ten minutes with the saddle at the right height tells you more than any size chart, and it is the difference between a bike that disappears underneath you and one you are always slightly negotiating with.

  • Step-ThruFrame
  • 27.2 kgWeight

Height charts assume average proportions. Two riders at the same height with different inseams will want different setups, so treat any published range as a starting point and expect to move the saddle and bars.

05 Drivetrain

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Gears: Shimano Tourney TX50R7CT Shifter Plus 7-Speed · Chain: KMC chain, Throttle: Thumb Throttle. Gearing decides what the motor is asked to do: the right gear on a climb keeps you spinning and keeps the drive unit cool and efficient, and the wrong one grinds through your knees and your range at the same time.

Assist cut-off is set by regulation, not by ambition, and a bike that keeps helping past the legal limit is a different legal class the moment it leaves the shop. Knowing where the motor stops and you start is worth understanding before you buy rather than after.

Pedal-assist levels are a controller setting, not a measurement. What one brand tunes into its middle level another spreads across two, so treat the count as a range of options rather than as a spec you can compare across bikes.

Thunder Step-Thru RX Step-Through Electric Bike

The Thunder Step-Thru RX Electric Bike is designed for riders who want an easy-to-mount commuter e-bike with useful range, comfortable components, and dependable everyday performance.

A 500W 48V Bafang G02 rear hub motor delivers up to 80 N·m of torque, providing useful assistance for starts, city hills, and longer rides. The removable 48V 17.5Ah Samsung lithium-ion battery offers approximately 840Wh of capacity and a listed range of up to 120 km under suitable riding conditions.

Comfortable Step-Through Design

The lower step-through frame makes getting on and off the bike easier, making the Thunder RX well suited to commuting, errands, and riders who prefer a more accessible frame design.

A MOZO suspension fork with adjustable preload and mechanical lockout provides approximately 100–120 mm of travel, helping absorb bumps and vibration from rough pavement and uneven urban surfaces.

Hydraulic Brakes and Shimano 7-Speed Gearing

Front and rear Tektro hydraulic disc brakes with 180 mm rotors provide controlled stopping performance, while the Shimano Tourney 7-speed drivetrain gives riders practical gearing for hills and everyday cycling.

A thumb throttle provides additional flexibility when needed, while the King Meter LCD display shows key riding information.

Practical Commuter Equipment

The Thunder Step-Thru RX comes equipped with 26" × 1.95" Kenda tires with reflective sidewalls, front and rear lights, full fenders, a kickstand, bell, and a rear carrier rated for up to 25 kg of cargo.

At approximately 60 lb (27 kg), it is designed more for stability, range, and everyday utility than lightweight portability.

Buy the Thunder Step-Thru RX in Vancouver

For riders looking for a comfortable step-through electric bike in Vancouver, the Thunder RX offers a useful combination of Bafang motor performance, Samsung battery capacity, hydraulic braking, suspension, and commuter-ready accessories.

ProMechBC provides local Vancouver pickup, product support, service, repairs, and access to experienced electric-bike technicians.

Full specification

Every number, in one place.

Pulled straight from the product record — if it changes on the bench, it changes here.

Power
MotorBafang 500W 48V G02 hub motor
Motor torque80 N·m
Top assisted speedUrban commuter class
Pedal assist levels & throttleThrottle: Thumb Throttle
Drivetrain / gearsGears: Shimano Tourney TX50R7CT Shifter Plus 7-Speed · Chain: KMC chain
Battery & charging
Battery capacity48V 17.5Ah Samsung Li-ion (840Wh)
Range (manufacturer claim)Up to 120 km
Charging timeApprox. 6–8 hr
Battery removable-
Safety
Brake systemTektro hydraulic disc brakes
Suspension / fork travelMOZO adjustable preload fork
Tyres26 x 1.95 in Kenda tires
LightingHeadlight: Yes
Dimensions & weight
Weight60 lbs
Max total load-
Frame size & standoverSize: 73"x28"x42" LxWxH
Design & connectivity
Frame materialStep-Thru
Certifications & compliance
BC legal class-

Specifications are supplied by the manufacturer and can change between production runs. We update this page when we are told they have.

Customer Reviews

Owners put it best

verified riders have rated the Thunder Step-Thru RX Electric Bike. Unedited impressions from daily commutes, rain rides and hill climbs.

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Loved by riders

What our customers say

Unedited reviews from riders across the Lower Mainland — and a few who crossed the border just to see us.

4.9
656 Google reviews · Read them all →
★★★★★

I drove all the way from Seattle to bring my daughter's scooter to ProMechBC and I could not be more pleased with both the repairs and the customer service. I will definitely be bringing the scooter North of the border when it needs some love.

Katie Barber
Posted on Google
★★★★★

Recently had an accident with my Apollo Go — luckily nothing major was damaged, but it still needed some repair and replacement parts. Service was great, and I got my scooter back within a week. :D

nw
Posted on Google
★★★★★

The service was incredibly fast, professional and efficient — they fixed my scooter wheel quickly and the quality of the repair was outstanding. Honest, reliable, professional and fast.

Amirreza Najmi
Posted on Google
Read all 656 reviews on Google
06 Owning it

Ride it home today — the rest is on us.

Ride now, pay later

Split it into predictable monthly payments — 0% APR on approved credit, no hidden fees.

Based on $2,199.00 at 0% APR. Rates from 0–19.99% APR. Subject to approval.

12-month warranty

A full year of coverage backed by our own technicians — plus lifetime service on everything we sell. No mailing it away, ever.

Price match guarantee*

Find the same product for less at an authorized Canadian dealer and we'll match it — you keep the local build, tuning and support.

Trusted local support

Bought here. Fixed here. By the people who built it.

Every ride leaves our bench assembled, torqued to spec and safety-checked — and stays local if it ever needs attention.

  • In-house assembly & safety check before pickup
  • Warranty work handled by our own technicians
  • Genuine parts stocked, plus a free 30-day tune-up
Book a service visit
ProMechBC Workshop
1199 Grant St, Vancouver, BC V6A 2J7
Open today · 10:00 – 18:00
Get directions (604) 200-4166
  • < 24 h Reply to service requests
  • 1 year Local warranty, in-house
  • Free 30-day first tune-up
Support

Frequently asked questions

The Thunder Step-Thru RX uses the 500W Bafang rear-hub platform used across the Thunder City RX family. It is designed to provide smooth everyday assistance and hill support while retaining an easy-access step-through frame.

Ride safe & legal

Riding safely and legally in Vancouver

Know the local rules for e-scooters, gear up properly, and keep your ride maintained. Our team can walk you through everything at pickup.

Talk to a specialist
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