I broke the handlebars on my stationary bike I had so I tek'ed screwed back together.Lasted for a while but was killing my ass. Was able to get 10 mil. in 1/2 hr. Got rid of that [ rolled it out to the front] gone. Got Concept2 model E. Been kickin it, 5000 meters in 1/2 hr. Proper technique is a learning curve. Worried about locking up, this is a lot more comfortable to work with. Made in Vermont.