Originally Posted by
bulgie
No, I didn't try any of the late models, so all my experience was with DuoPars made in the late '70s thru early '80s. Why, did they fix the problem with the chain coming off the upper pulley if you backpedal?
Not that I’m aware of. I was just curious to know if the Duopar was tweaked over it’s production run to improve its performance.