Senior Member
Join Date: Apr 2017
Location: Los Angeles, CA
Posts: 2,249
Bikes: 1964 Legnano Roma Olympiade, 1973 Raleigh Super Course, 1978 Raleigh Super Course, 1978 Peugeot PR10, 2002 Specialized Allez, 2007 Specialized Roubaix, 2013 Culprit Croz Blade
Mentioned: 68 Post(s)
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In 55 years of racing, commuting, touring and just cruising around with QR freewheel bikes, I can count on one hand how many times the wheel has slipped in the dropouts. The momentum of the bike will carry you along if the tire tire contacts the frame. Usually you hear it, and have time to stop and reset the wheel in the frame and adjust the QR. The most recent instance of this happening was on a friend's carbon bike with QR and modern cassette. He stood up to finish a hill, the wheel shifted, locked up, and he went over the bars cracking his helmet and his one piece carbon bar/stem combo. Stuff happens. You could also get struck by lightning. Find another shop.