Joined: Apr 2014
Posts: 1,619
Likes: 385
From: Back in Lincoln Sq, Chicago...🙄
Bikes: '84 Miyata 610 ‘91 Cannondale ST600,'83 Trek 720 ‘84 Trek 520, 620, ‘91 Miyata 1000LT, '79 Trek 514, '78 Trek 706, '73 Raleigh Int. frame.
Ah! You caught me! That was about concern with frame flex at the BB and ghost shifting on my '84 Trek 610. I tracked the problem down to the jockey arm spring on the rear derailleur. It's working smooth now. And Miyata sports tourer would be either the 610, stiffer than the 1000, or the 710, a "slack" (for a sport bike) framed tri bike. The 710 I love and actually have kept both an '85 and an '86. The '85 is a 60cm with more clearance and the '86 is a 57cm with a Chromo fork. Both have a 57cm top tube so both fit nicely.