Bike rental Try Rental Acom in Shinjuku (tel 03/3350-5081) or Shimbashi (tel 03/3432-8522), both open daily 10am-7pm, which also rents just about anything else you could need. For a minimum of two days an ordinary bike is ¥2100 and a mountain bike ¥4200. You'll need to present your passport and make an advance booking in Japanese.