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The revolutionary Lal Bikes Supre Drive could kill the rear derailleur and gearbox

The revolutionary Lal Bikes Supre Drive could kill the rear derailleur and gearbox

The Lal Bikes Supre Drive is a new mountain bike drivetrain that separates the two functions of a rear derailleur – shifting and tensioning the…

Friday, Jul 15

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The Lal Bikes Supre Drive is a new mountain bike drivetrain that separates the two functions of a rear derailleur – shifting and tensioning the chain – to improve reliability and efficiency while riding, compared to a typical external rear derailleur.

Combining the “efficiency and low weight of derailleurs” with the “reliability of gearboxes”, the system houses the custom-made rear derailleur within the rear triangle, with a damped chain tensioner, which doubles-up as a clutch, rotating around the crankset to take up slack in the chain.

Debuting at Eurobike 2022 , Nicolai – a brand that has lots of experience experimenting with new drivetrain technologies – will be the first to offer the Supre Drive on a production bike, with the Nucleon 16.

Speaking to BikeRadar, Cedric Eveleigh – the designer of the patented system – confirmed other brands have expressed interest in the system with further news to follow. How does the Supre Drive work?

The Lal Bikes Supre Drive separates the two functions of a rear derailleur – shifting and chain tensioning.

At the rear, a diminutive custom rear derailleur, sitting inside the rear triangle, takes care of shifting the chain across the cassette.

As it is housed within the rear triangle (rather than hanging below the chainstay, as all typical rear derailleurs do), Eveleigh claims it is less likely to be damaged while riding.The chain tensioner pivots clockwise to take up slack in the chain as shifts into smaller cogs.The chain tensioner is connected via a cable to a spring and […]

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