Senior Member
Join Date: Mar 2007
Location: SF Bay Area, East bay
Posts: 7,663
Bikes: Miyata 618 GT, Marinoni, Kestral 200 2002 Trek 5200, KHS Flite, Koga Miyata, Schwinn Spitfire 5, Mondia Special, Univega Alpina, Miyata team Ti, Santa Cruz Highball
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I've had a Genuine Innovation that gets used quite often in a group ride situation. As long as it's screwed completely on, it has worked flawlessly for five years. This is the ultraflate model.