Originally Posted by Bikey Mikey

As far as I can tell, and I'm sure I'm correct, the only difference between the RR and RM is the frame. The mat looks interesting Billydonn. It looks, other than the Kinetic logo, just like interlocking mats you can get at many stores. I've seen those type of mats even at Sam's Club. The Giant mat I got is 3 feet x 6 feet and comes with velcro straps and a duffel type bag to keep it stored and for portability. I opted to get this mat instead of Blackburn or some other brand since I could easily store the mat away. I love how the KK RM can fold for easy storage. So far I've left it set up, the RM that is, but when we have visitors and need to use the spare bedroom, I'll be able to easily put it all away.

Originally Posted by skilsaw

I chose the KK Rock n' Roll because it was supposed to be "More Advanced" than the Road Machine. I wish I had the Road Machine. I have difficulty holding the bike vertical in the R n' R and it is very different than balancing a bike while I ride.
Like you, I have the larger flywheel and think it is great. And the guts of the machine, the resistor, is also well built and functions well.