I like to ride mountain bikes on trails in the Rockies. 
moutain bike are fun, confident and comfortable to ride, i love the fun of riding moutain bikes
Yeah, me too.  It can be challenging on trails in the mountains of Colorado.  Where do you ride them?
northern michigan, they normally host annual events
Sounds fun.  I've done the Bike Ride Across Georgia but that's not mountain bikes. 
i love long bike rides too, i love exploring the environment when ever i go bike riding
Yep, that's part of the fun.  Makes up for the wind and switchbacks... 
nothing can be compared to that level of fun, mostly when you have a great bike on your hand
Yeah.  I ride a Trek.  What's you favorite brand?
a polygon with full suspension