Praxis Works Will Lighten Your e-Bike

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With most e-bikes weighing in at the high 30lbs or mid 40lbs mark, saving weight is still a worthwhile exercise, yet most e-bikes run the stock forged alloy cranks that came with them.

We got beckoned over to the Praxis booth where usually we get to see carbon wheels and the latest chainring and crank designs.

Carbon cranks for everything from those e-bike companies

Praxis Works, from Santa Cruz has already got a popular range of alloy and carbon mountain bike and road cranks, but it has now turned its attention to the e-bike. These carbon replacement cranks will be available for the Specialized range of Levo bike, Bosche and Brose by the early summer, while a Yamaha version will come later in the year.

Bosche and Brose are covered too.

Replacement cranks aren’t apparently a simple job to make – as all of Praxis’ current cranks are two-piece, with a built-in bottom bracket spindle and these need e-bike cranks have to be made to fit the integrated splines of the e-bike motors.

With motors being made of big steel cogs, every little helps
Brose too – and soon Yamaha

When the cranks are released this summer, they’ll come in a natty presentation box with full instructions. Thanks to the design of most e-bike motors, where the splined BB is part of the motor itself and non-removable (without a service centre visit anyway) the crank swap should be an easy five minute job. Just get your 8mm allen key, whip off your pedals and unbolt the cranks, then replace with carbon versions and save yourself a couple of hundred grams. And while the cranks probably won’t be cheap, if you’ve paid £5,000 for a 35lb bike, spending a few more hundred on saving half a pound will probably make sense.

Praxis is distributed by Upgrade Bikes in the UK.


Singletrack Editor

Chipps wasn’t around for the dawn of mountain biking in the UK, but he likes to claim that he arrived in time for second breakfast (about the time he shows up for work, then…) starting in the bike trade in 1990 and becoming a full time mountain bike journalist at the start of 1994. Over the subsequent quarter century, he has seen mountain bike culture flourish and diversify and bike technology go from rigid steel frames to fully suspended carbon fibre (and sometimes back to rigid steel as well.)

His riding style is best described as ‘medium, wheels on the ground, trail riding’ though he’s been spotted doing everything from endurance downhill racing to 24 hour cross country racing. He favours mid-travel trail bikes and claims to be wheel-size, gear, brake and tyre agnostic. In fact, his garage spans most bicycle flavours, taking in steel hardtails, carbon trail bikes, even a mountain bike tandem, along with road, touring and gravel/cyclocross bikes.

While he’s happy to chat about bikes all day, his real interest is in the people and places that bikes can introduce you to and he talks as fondly about the trails he’s ridden and riders he’s met as the bikes that took him there.

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