Many ebikes sport a derailleur hanging out again to giver riders extra flexibility than single-speeders. There are exceptions that mix gears with the motor, similar to Pinion and Valeo. And now there’s one other, as Scotland’s Intradrive system goes into pilot manufacturing.
“Pushed by frustration with derailleur gearing and a imaginative and prescient for higher ebike know-how,” Intradrive was based by mechanical design engineer Mark Ravilious in 2016. By 2019, the startup had a proof of idea design, which was shortlisted for a Eurobike Innovation Award (although did not take dwelling the gong).
Design revisions and funding rounds adopted, culminating in an over-funded Crowdcube marketing campaign in 2023 and the testing of pre-production prototypes in collaboration with bike makers. The event crew was then expanded, prototypes have been showcased at Eurobike 2024, and the design finalized forward of pilot manufacturing this month.
Intradrive
The GD8 seals a proprietary 250-W motor (which peaks at 650 watts) and 8-speed gearbox with a 480% ratio vary right into a single unit that is suitable with both chain or belt drives. The corporate stories near-instant digital shifting and compatibility with a variety of battery choices suited to all the pieces from commuters to mountain bikes.
We do not but know what number of pedal-assist ranges are supplied by the motor, or the hill-flattening torque on faucet. However the firm states that the compact unit will ship to ebike makers with a wiring harness, cranks, sprockets and a big chainring.
It is designed for low upkeep operation, and an extended service life with repairability cooked in. The electronics are totally built-in and the connectors are stated to be waterproof. The pilot manufacturing model ideas the scales at 4.5 kg (below 10 lb).
Intradrive
“We’ve refined, industrialized, and optimized a product that’s been extremely praised in prototype testing by bike manufacturers,” stated Ravilious in a press assertion. “The GD8 represents a game-changing step ahead in e-bike drivetrain know-how, eliminating derailleur programs and prioritizing sturdiness, efficiency, and long-term worth.”
The pilot manufacturing items have been constructed on the firm’s Edinburgh facility, and are being shipped out to “main bike manufacturers” this month, with quantity manufacturing doubtless the following step assuming all goes nicely. Intradrive can be “actively elevating funding” to scale manufacturing, so we might begin to see ebikes rolling with the GD8 being made accessible to customers within the very close to future.
Supply: Intradrive
