Just bought myself a Yamaha CrossCore RC E-Bike and very pleased with it.
This is what Yamaha say about it: CrossCore RC is a versatile, adaptable and accessible eBike that’s ready for whatever the new day brings. It’s been specifically designed to handle everything from urban commuting through to relaxed leisure riding and fitness training. And with zero emissions and low running costs, it’s the right choice for so many reasons.
So far, I’ve done around 5 rides of between 22 and 31 miles and you can easily maintain the bikes maximum of 15 mph.
More info here: Click