The cycleops fluid 2 trainer is great to use before and or after an event or race and is also a good training partner in the winter months it features a precision balanced flywheel for inertia and acceleration flexible fluid resistance which achieves ideal power to speed ratio and levelling feet that fits 29ers your bike is secured to the trainer with the spring loaded skewer clamp supplied cycleops have adjusted fluid levels for better resistance and improved the position of sealed cartri