For Space-Starved Urbanites
While most folding bikes ride on 20-inch wheels, the eight-speed Bike Friday Quick Tikit has 16-inch rollers, so it’s easier to carry up stairs. Since each bike is built to order, you can spec it out as you wish. Even better: It folds faster than the Diamondbacks’ bullpen.

Testers say: “On smooth asphalt, I felt like I was riding a full-size roadie. Just watch for potholes. Or else.” [from $1,395; bikefriday.com]