Specialized Sirrus Bike Color:Char/Red It attaches to the saddle

It attaches to the saddle easily via hook-and-loop straps

spine and lower shell to retain stiffness

It's made from our high-end VaporRize™ fabric that's light

Mesh inner fingers for increased ventilation

Fix the problem or prepare in advance by packing a spare set

Specialized Sirrus Bike Color:Char/Red It attaches to the saddleIf you're going to get in shape, you need to move, and nothing wants to help you move faster than our Sirrus with powerful hydraulic disc brakes. It takes a no nonsense approach to its design, giving you everything that you need, like superior braking, and nothing that you don't. Working with our Body Geometry team, we designed a frame that strikes the optimal balance between comfort and efficiency. The A1 SL Premium Aluminum construction pairs weight