You will not be sorry with the Kurt, I believe it will come wiht a 6 lb flywheel. What you are going to find is this is good for intervals however to get a better simulated effect of long rides you will want to cosider the additional 12 lb flywheel that can be attached. I actually just talked to Pam at Kurt today and ordered the 12 lb flywheel for mine. To determine if you can attach the additional flywheel you will have to look at the flywheel bolt and see if it has been drilled and tapped. If so then you can call PAM and order the machined flywheel made for our trainers. You will not find this option if you go to the Kurt web site. I should get my flywheel next week.