Our owners have 30 years of health and fitness industry experience in San Francisco.
We've managed small studios, worked at large gyms, run diverse fitness programs, and found success as trainers, coaches, and athletes. 


Shannon Boughn, Studio Co-Owner
Lead Instructor & Motivator

Shannon has curly hair and sometimes doesn't look in the mirror before she leaves the house. The effect can be startling, especially when she is barking out instructions on the bike. She has not had a baby, much to everyone's relief. She may someday reproduce through mitosis.

Favorite Part of the Brain: Amygdala
Favorite Parent: ummm...I like them both the same but in different ways?
Favorite Exercise: squats


Marissa Axell, Studio Co-Owner
Director, Fitness & Media

Marissa--yikes!  She races bikes and sometimes crashes them. Repeated falls have not mellowed her out. Her classes are thoroughly engaging. We voted her least likely to need a microphone when teaching.

Favorite Drink: Kombucha tea. She sometimes just drinks it directly from the compost bucket.
Favorite Person: her cat
Favorite Exercise: cycling

Thandi looks like a nice person. Then you take her class and you think, why would a nice person make me suffer like this?  Thandi's TRX and Circuit classes are fun to take and funnerer to watch other people take while you sip coffee.

Favorite Muppet: Camilla the Chicken
Favorite Person: Camilla the Chicken
Favorite Exercise: anything where she's upside-down


Robyn somehow manages to look stylish even when she's sweatier than one of those women on Glow taking a Bikram yoga class. We kinda resent her.

Favorite Cheese: cubed
Favorite Person: Shannon (she's reading this, right?)
Favorite Exercise: TRX


Katy Storch recently relocated from southern California where she wrote and produced fitness horror films. She wears biking clothes under most of her work outfits, just in case she needs to ride a long distance without notice; therefore she secretly identifies as a superhero. 

Favorite Milk: Chocolate
Favorite Person: Rogue
Favorite Exercise: Quidditch Conditioning 


Chelsea is tall and strong. She will harness the power of her tallness to make you strong, too. 

Favorite Color: black until they come up with something darker
Favorite Person: strangely, also Shannon
Favorite Exercise: not swimming


Armando (not pictured) is a man. You will recognize him because he is a man. The rest of us are not.

Favorite thing: long walks on the beach
Favorite Person: Marissa, because I feel sorry for her
Favorite Exercise: Capoeira 


Maisie is another athlete who went off the rails and had kids. Her bike now sits unloved and unridden but her children are fed. She has a lot of pent-up energy that she would like to share with you. She is a triathlete who was a rower in college. She was also captain of the softball team. She is married to a man, go figure.

Favorite TV Show: she claims not to watch TV and tried to tell me her favorite author.  I ignored her.
Favorite Person: someone named Brewster; it sounds made up
Favorite Exercise: bootcamp


Alexis is tough. She has done more Ironmans than your mom. She recently had a baby which I hear is kind of hard. She is also a kick-ass cycle instructor who will blah blah, something inspiring.

Favorite Food: Donuts
Favorite Person: Shannon
Favorite Exercise: running

Angela teaches everything: She teaches strength, cycle, TRX (here), and woodworking (not here). 

Favorite TV Show: American Pickers
Favorite Person: Shannon, obvi
Favorite Exercise: planks (get it?)


Katie Meza - AIDS/Lifecycle ambassador. One day Katie woke up and said, "Yeah I think I'm going to ride a bike from SF to LA this year." Not only did she not know how to ride a road bike, but she didn't even own one. That's where the coaches of 17th Street Athletic Club stepped in. Not only did Marissa teach her bike handling skills, but she gained strength and fitness and a whole new healthy lifestyle. Now she's stepped up to teach cycling, welcoming everyone to the tribe.  Above all, she makes sure everyone has a smile when stepping into her class. 

Favorite Person: Do dogs count--my dog Suki! 
Favorite TV Show: The Simpsons
Favorite Exercise: Biking + a love/hate relationship with the BOSU ball


You! Want to teach with top-notch equipment and work with great instructors? Want to help people get fit and build a warm, welcoming fitness community? Email Shannon to get in touch.