I did the horse riding thing for 20 years, from the mid-70s to the mid-90s. I even had my own horses for 10 years of that. After my last horse died of colic, I rode other peoples horses for a few years. Then I got into going to college (at 33!) and got away from horses. I sold all my tack 5 years ago and bought a nice road bike.
I still love horses and look at them out on bike rides.
I have a friend from college who is getting into bikes and we have been riding bikes together. She also rides jumpers and event horses. She has a horse, a Russian Warmblood, Max, who is a semi-retired show horse. I have gone horse riding with her a few times.
She really likes to teach riding too, so I can get instruction from her if I want it.
The horses I ride there are trained in dressage and jumping. They take work to ride. I'm in good shape for hiking and biking, but riding horses takes a whole new set of muscles and balance. I can't hold my seat for too long yet before getting tired. Last time I made it all the way around the arena at the canter!
Specialized Ruby
Gunnar Sport
Salsa Vaya Ti
Novara Randonee x2
Motobecane Fantom CXX (Surly Crosscheck)
Jamis Dragon