Browse our mountain bike events calendar crammed full with all the latest upcoming mountain bike races, events and demo days throughout the UK and Ireland. Mountain bike racing (shortened MTB or ATB racing) is the competitive cycle sport discipline of mountain biking held on off-road terrain. The Union Cycliste Internationale (UCI) recognised the discipline relatively late in 1990, when it sanctioned the world championships in Durango, Colorado. Downhill bikes are available in a range of different colours and they are also great for those who want to get the best experience out of their mountain biking adventures. Downhill Bike Specifications. Downhill bikes are quite possibly one of the most specialised types of mountain bikes. Our newsletter is filled with a variety of places to Hike, Bike, Kayak/Canoe, Fish, Camp, Hunt, Ski or just relax. Explore OUTDOORS SOUTHWEST; Rim Country or White Mountains, experience tall Ponderosa pine, colorful aspen and amazing wildflowers along cool mountain lakes or streams and desert landscapes across Arizona and New Mexico. Mountain bike trail maps, videos, photos, reviews, and directions. Mountain bike reviews, blogs, and MTB GPS info. SNOW COURSE MOUNTAIN BIKE CHALLENGE: Sunrise Park Resort GREER, AZ – Sunrise Park Resort has anounced it will hold its first Snow Course Mountain Bike Challenge on Saturday, February 25. The race will be held no a half-mile snow covered course featuring berms and jumps with a cash prize of a yet undisclosed amount.