Specialized Sirrus 1.0 Bike Trainer A weatherproof recycled 400D nylon

A weatherproof recycled 400D nylon canvas shell with high-density foam sub-lining keep your gear safe and sound

ActiveFresh™ odor control technology

Webbing pull-loop for easy on/off

It's made to last and is a joy to have on your handlebar

Specialized Sirrus 1.0 Bike Trainer A weatherproof recycled 400D nylonYou have places to go, people to see, and fitness goals to achieve. We get itlife moves pretty fast, so it's a good thing we made Sirrus to help you with all of it. Wherever you're heading, Sirrus will take you there. This Sirrus features a reliable set of components that are built to withstand years of daily abuse, like comfortable Body Geometry touchpoints and fuss free mechanical V brakes. So, as you push yourself to reach your goals, you'll feel