A spin-off of Bike Summer two years ago, Pedalpalooza is a 17-day series of events, all somehow associated with bikes--midnight bike rides, pedal picnics, scavenger hunts. But rather than being the center of attention, bikes are only an excuse to get up and go.

Pedalpalooza starts on Thursday with a Costume Parade--that means dress up yourself and your bike. Starts at Eco Trust, 721 NW 9th, 6:30 pm.

On Friday evening, a family-friendly potluck offers up countless ideas for touring with the tykes. Along with clowns on unicycles, there are kid bike helmet giveaways. Peninsula Park, N. Albina at Ainsworth, 6 pm-9 pm.

Most of Saturday's events are geared toward women. An ambitious 20-30 mile ride starts at 9 am, Bike Gallery, 5329 NE Sandy. If bike touring isn't your speed, check out the Spinsters Polo. The workshop will teach women cyclists how to convert their bikes into war machines for field polo. For more info, contact graciewaters@yahoo.com, 10 am.

Sticking with the female-centric events, a group of experienced female cyclists will host a "confidence building workshop (for women bike riders)." Citybikes Garden parking lot, SE 8th at Ankeny, 2 pm-5 pm. The day is capped off with SS Pussycat, a race for women on wheels (bikes, cruisers, roller skates--don't matter). Col. Sumners Park, SE 20th and Belmont, 5:30 pm-7:30 pm.

Men are welcomed back into the events at an almost-midnight Naked Ride, for more info, contact pollock@thayer.dartmouth.edu, starts at 11:30 pm.

Sunday is filled with bike tours. Snaking through North/NE Portland, the first trip tours some of the city's oldest and most majestic trees. Starts at N. Prescott Max station, 10 am. The next tour features the city's "radical history," from sites of worker strikes to information on the internment of Japanese during World War II. Starts at North Park Blocks, noon.

For the more ambitious, join the Zoobomb Century. With somewhat autistic tenacity, the goal is to descend a commutative 100 vertical miles over the course of the day. Take Tri-Met to the zoo; ride down the hill; and repeat (about 50 times). For those more interested in the traditional Zoobomb, evening rides start at Rocco's Pizza, 949 SW Oak, 9 pm. PHIL BUSSE