power-assisted bike from Panasonic, but the designers reckon you can fit another one on the back. It's called the Gyutto and it packs some nifty technology to make it safe for a trio. For a start, to prevent the bike toppling when you park up, the kickstand activates a lock on the handle bar, making the front wheel rigid. And to keep you travelling in the right direction up a steep hill, the 8Ah lithium-ion battery delivers some high-torque power assist, good for 36km on a single charge -- better than some others. Talking about steep, the price will work out at around $1,780 (including the two child seats) when the bike is released in Japan on May 23rd. The same money will get you a Mini version with smaller (20-inch) wheels. It's a lot to spend on a couple of ungrateful rugrats, but at least you won't have to pump those pedals so hard.