Unveiling TQ’s Revolutionary HPR40 Motor
TQ, a prominent force in electric bike engineering, has just revealed its latest innovation, the HPR40 motor. This state-of-the-art mid-drive motor is now being hailed as the lightest and most efficient option available in the market, weighing only 1.17 kg (2.6 lbs). This figure is a significant reduction compared to its predecessor, the HPR60, which weighed 1.92 kg (4.2 lbs). By cutting nearly half the weight, TQ aims to offer cyclists a blend of performance and efficiency.

Power and Performance Redefined
The HPR40 is specifically crafted for road and gravel e-bikes, providing a modest yet effective assist of 40 nm torque and a peak power of up to 200w. Unlike traditional motors that prioritize brute force, the HPR40 is designed for those who appreciate seamless assistance without overwhelming power. This innovation is particularly ideal for riders looking for a smooth, almost analog feel on their journeys.
Designing for Discretion and Efficiency
What truly sets the HPR40 apart is its unique design, which integrates TQ’s harmonic pin-ring transmission within the bike’s bottom bracket. This refined drivetrain minimizes noise and friction, allowing for instantaneous motor engagement with zero lag. Coupled with a lightweight, 290wh battery hidden within the downtube, the overall system weight remains under 2.7 kg (6 lbs), emphasizing TQ’s commitment to optimal integration without bulk.
In summary, the HPR40 represents a pivotal shift in electric bike technology, merging advanced design with lightweight efficiency. As the cycling community looks towards the future, TQ is poised to lead the way in creating e-bikes that feel less electric and more like traditional bicycles—an exciting prospect for both seasoned and new riders alike.