Video: TQ HPR40 e-Bike Motor Deep Dive
As e-bike technology continues to weave itself deeply into the fabric of cycling, advances in torque, battery life, and weight can sometimes be tempered by a herky-jerky ride feel that lacks that more natural, intuitive feeling that we all know and love.
All of which raises a central question: what if an e-road bike could truly look, ride, and feel like a traditional road bike?
That’s the promise of the TQ HPR40, a revolutionary e-bike motor system available on many of the bikes in Contender’s lineup.
Video: Deep Dive on the TQ HPR40 E-Bike Motor
In our latest video (above, plus cheat sheet below), Contender owner Ryan Littlefield breaks down exactly what makes the TQ HPR40 so unique and exceptional, including how it was engineered specifically for road and gravel cyclists, and not retrofitted from a mountain or commuter platform. Designed by a firm known for its prowess in aerospace engineering, it delivers quiet, efficient power that all but disappears beneath you.
The result is a new kind of ride experience: all the endurance and assistance of an e-bike, with the agility, balance, and purity of a true road machine. For riders who have resisted e-road bikes for fear of added bulk, bad aesthetics, or ride feel concerns, the HPR40 rewrites the rules.
Problem/Solution: How The TQ HPR40 Is Changing The Game
Industry / e-Bike Problem:
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Traditional e-bike motors add bulk, noise, and awkward weight distribution, diminishing a more organic, intuitive ride feel.
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Most were adapted from mountain or commuter designs, and were never tuned for a true road feel.
TQ’s Solution:
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TQ started from scratch, developing a motor system that’s smaller, lighter, and seamlessly integrated into modern road frames.
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The entire drive system, from motor to battery, controls to display, vanishes into the bike, leaving behind only the familiar, beloved feel of smooth, silent speed.
New & Noteworthy: Key Features of the TQ HPR40 Motor
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Harmonic Pin-Ring Technology (HPR): A double-tooth ring engages multiple teeth at once, reducing size and friction while maximizing efficiency and durability.
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Lightweight Design: At just 1,170 grams, it’s the lightest mid-drive motor in its class, a fraction of the weight of most e-road bike systems.
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Road-Tuned Performance: 40 Nm of torque and 200 watts, with road-specific power curves that feel entirely natural.
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Invisible Integration: Battery in the down tube, integrated remote buttons (bar ends and the hoods, via Shimano Di2), and a discrete system display (also integrated into the bar ends)...a setup so clean, you think you’re looking at a traditional road bike.
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Intelligent Assistance: Real-time sensors read torque, cadence, and pedaling inputs to deliver instant, lag-free power. No surges, no delay, just smooth acceleration.
- Aerospace Pedigree: TQ’s background in robotics, aerospace, and medical instrumentation brings unmatched precision and reliability to cycling technology.
Learn More:
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Read: learn about the new Scott Fastlane, which features the TQ HPR40 motor
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Shop e-Road Bikes: along with the Scott Fastlane, the BMC Roadmachine AMP and Pinarello Nytro also feature TQ motors (HPR50, with 50 Nm of torque)
- Engage: visit the shop, send us a message here, or call us at (801) 364-0344
