When you want to change up your indoor training session, stick your bike on your rear-mounted trainer, grab the CycleOps Climbing Riser Block, hop in the saddle, close your eyes, and picture yourself attacking a massive hill. CycleOps made the Climbing Riser Block with a three-level design that lets you choose your level of difficulty. Since a weak climbing block could result in embarrassing living room crashes, the Climbing Riser Block has a super durable, injection-molded construction. Buy two
