The new Wisper Tailwind has arrived and is looking mightily impressive. The main feature of the Tailwind range is its lightweight frame, weighing only 21.5kg. Impressive for an e-Bike. That's with the smaller battery on the Comfort model, the features of the Comfort Tailwinds are then included rack, mudguards, integrated front and rear lights and a kickstand. The City version features a weight of only 19.5kg but you don't get any mudguards, a rack, lights or kickstand included which is how they keep the weight down. If those items are not essential, then you get a super light frame for an e-Bike which is ideally suited to commuters where as the Comfort range suites both commuters and leisure riders.