Onyx says this one will do speeds of up to 55-60 mph (88-96 km/h), with its powertrain ... or from the last bunch of e-bikes from Onyx' supplier in China. There's also the question of how Seward ...

The bike comes with a rear hub motor boasting over 15 kW of peak rated power and 7.2 kW of nominal power, or enough to blast it up to 30 mph (48 km ... of a typical electric bike.