Love training when you travel? Need an awesome warm-up and cool-down during weekends at the races? Meet the Omnium Portable Bike Trainer. The adaptable fork-mount design keeps the rear wheel on the bike and offers the most dynamic ride quality of any stationary bike trainer available. Add this handy Sled Extension to get the extra length needed to accommodate your “long and low” enduro or downhill mountain bike. This add-on provides an additional 145mm of available wheelbase length.