Jenna Dornseif

Serious spin enthusiast and all around fitness fanatic! She believes in pushing yourself past your limits by bringing creative, fast pace and fat burning rides on the bike. When Jenna is not in the saddle she can be found volunteering, soaking in the Internet or working on her passion for good wines.

Lover of sports, outdoors and everything Colorado!



Jenna Dornseif instructs the following:
  • CYCLE + CORE
  • Its all in the name. Half cycle, half core burning! BOOM...  designed as a sweat-fest combination of intense cycle conditioning followed by core isolating moves to improve stability and posture leaving you with a tight and toned midsection!

  • CARDIO + CORE
  • You want results and we know how to get them... designed as a sweat-fest combination of intense cardio conditioning followed by core burning moves to improve stability and posture leaving you with a tight and toned midsection!  

  • CYCLE
  • NOT another spin class…Hop on a REBEL CYCLE for an unpredictable, challenging and fun ride full of hardcore interval drills mapped for endurance, power and speed.