I'm riding because:

Of the sound of whirr - it's onomatopoeic
I love the excitement of riding in a pack and taking my turn pulling
I love what it's done for my legs
It's freedom on two wheels
I often see bears and other wildlife
I've made the most amazing friends in the world through biking
I love saying "On Your Left"
It defines me
I appreciate a good pair of shaved male cycling legs
Of the smells & sights of rivers, trees, flowers, forests, towns
No matter how much I might not feel like riding, once I get myself out the door, I have NEVER regretted it
At 43 years of age, I can still pass for early 30s
I like relaying the stories behind my bruises & cuts (from mountain biking)
I can't imagine not riding