Hi Donna:

I'm sorry to hear about your asthma -- I hear you loud & clear!

I'm not an experienced cyclist, just a beginner -- but, I've had asthma for 27 years.
What medications do you take?
I'm on Advair 250/50 twice/daily and if needed (when I'm symptomatic), I use my rescue inhalor - Ventolin, up to 12 puffs/day. <<that's only when things are wicked bad--sometimes with 5 days of prednisone!!

Right now, I'm doing well with my advair (provided I don't miss any days), and before hiking, walking, biking, I take two puffs of ventolin.
I always take the ventolin with me b/c I sometimes need more during whatever activity it is I'm doing.

I was recently put on Singulair 2 months ago, which I find extremely helpful with my asthma & allergies (both indoor & outdoor)!!

Like you, I get out there when the weather is best for me!!

Take good care!

Denise