Simple and effective design to keep your front wheel level and stable while riding your trainer - no more slippery Yellow Pages underneath your front wheel. The 3-way rider offers three different heights the will either elevate or level your bike. It creates a stable environment for your front wheel and works with either 26 inch or standard 700c road wheels. Durable molded construction will last a life time. As with all Blackburn products, it is an exceptional value.