The news that Propella have introduced their fastest and highest spec yet e-bike is welcome of course – EBR has already done lots of reviews on existing and previous models. However it was the fact that Propella will be using 21700 battery cells rather than the more usual 18650 cells seen in e-bikes that caught our eye this time around.
What’s the big deal? Well, the 21700 cells are physically larger and so give better power density, which means more range for less weight compared to e-bikes using 18650 cells. Until now 21700 cells have been more common in ultra-powerful e-scooters and are also the mainstay of some electric car batteries including Tesla models. Is Propella marking the start of more budget e-bike companies using these more power dense cells, and so will their performance benefits spread to more and more e-bikers?
In this week’s e-bike news:
- Propella 9S Pro – bigger battery but still a budget price
- With the federal e-bike tax credit stalled, will there be more local legislation in 2022?
- Sea Otter Classic is here again
- Honbike is crowdfunding a folding e-bike with a drive shaft and funky seat
- Bafang M510 mid-drive – more torque and less weight than the M500
- Rider sues e-bike company over brake lever position
- Boston’s financial support for business e-cargo bikes
- Beam camera-equipped e-scooter claims to recognise riding surface and conditions
- Utah’s plans for a bike-friendly 15 minute city





















