Wheels are responsive and very durable. Just the right amount of stiffness in the corners.. They stay true and look food as well..The super bubba hubs really dont seem to get enough praise.. These hubs are extremely reliable and easy to maintain as well as rebuild. Also they have ability to change the engagement. This is top notch, like having a extra rear wheel... Fast engagement for trail riding or super durable for down hill or EMtB..the sound is great too.. Think I9 hydra maybe better. these wheels tend to get overlooked probably because there seem to be much info on them. I couldn't be happier with them. Also, the Service from Hayes is quality and they will do there best to keep ya riding.