So I'm tall and thin-hipped so sitting in the position required to ride a Spyder, even an RT, can cause cramping in the front of my upper thighs. Perhaps you've experienced the same thing.
Here's what I've learned helps to alleviate the cramps when they do occur: Rock/lean forward in the saddle. You don't need to lean a lot; just enough to relieve the stress on that area of your legs.
I still need to occasionally stand up on the pegs to straighten out my legs or do so at stops, standing on the ground, but the realization that I just need to keep leaning forward slightly has helped me a lot. Hope it helps you, too.
bc
Here's what I've learned helps to alleviate the cramps when they do occur: Rock/lean forward in the saddle. You don't need to lean a lot; just enough to relieve the stress on that area of your legs.
I still need to occasionally stand up on the pegs to straighten out my legs or do so at stops, standing on the ground, but the realization that I just need to keep leaning forward slightly has helped me a lot. Hope it helps you, too.
bc