A few months ago, Rowlett’s bicycle shop, near the corner of Staples Mill and Broad, closed its doors for good. Today another bike shop goes into the same space. Pedal Power had been a Mechanicsville-based shop, now it’ll add a Richmond location. The doors open at 10 a.m. this morning, and shoppers can expect sales and deals all weekend long — 10% of all new bikes and 20% off all parts and accessories. In addition, Pedal Power, like Coqui Cyclery on Forest Hill Ave., will carry Giant bicycles. If you visit this weekend, you can enter to win a Giant mountain bike (no word on the model).