Cyclesomatic is finally here. Tagged as "10 days of bicycle love," it is an enormous, fantastic undertaking from Bike Friendly Oak Cliff. The cycling fun starts Friday with an 8:30 p.m. ride from the JFK Memorial Plaza downtown to the Texas Theater for a 9:30 p.m. screening of the documentary "B.I.K.E." The movie is $5 for cyclists and $8 for drivers.

On Saturday, a historical ride called "Hellhound on my Trail" starts at Dealy Plaza and tours historical sites in Deep Ellum, the Cedars and Oak Cliff. The ride starts at 2:30 p.m. and covers about 9 miles. At 7 p.m. Saturday, Eno’s and New Belgium Brewing presents "Beer Wars" at the Texas Theater. Tickets are $8 or $5 if you bike there, which might be a good idea because there are free beer tastings.

On Sunday, is sponsoring a bicycle photo scavenger hunt, which starts in the Bishop Arts District at noon. If you’re really feeling competetive, though, you might enter the alleycat race that starts at 1 p.m. at the Oak Cliff Bicycle Co. There’s a cash prize for the first-place finisher. The whole thing sounds very punk rock — the poster has handguns on it. But my personal favorite event this weekend is Oktoberfest at Eno’s, which starts at 2 p.m. While this is part of Cyclesomatic, it mostly involves the biceps workout of raising a beer glass. And there’s live music.

A lunchtime symposium at Methodist Dallas Medical Center’s Hitt Auditorium Friday will address breast cancer awareness and prevention in the African American and Latino Communities. The American Cancer Society and Methodist Health Systems are hosting the free panel discussion, which includes a light lunch. To register, call Michelle Matthews at 214.421.3018 or Ealleen Katibeh, who speaks English and Spanish, at 214.819.1226.

"Mystery of the Mask" is a multimedia installation by Valery Guignon and Kitty Alice Snead that opens at South Side on Lamar Saturday and runs through Oct. 30. The exhibit includes photos, videos and artifacts of the ancient Tarahumara Indian mask culture of Northern Mexico and Guignon’s totem figures and masks inspired by the ancients.