Joined: May 2020
Posts: 1,292
Likes: 541
From: Great White North
Bikes: 2013 Cannondale Caad 8, 2010 Opus Fidelio, 1985 Peugeot UO14, 1999 Peugeot Dune, Sakai Select, L'Avantage, 1999 Specialized Hard Rock, 1973 Raleigh Sport, Nishiki Probe
The other thing is if you are riding a wheel on trainer and your chugging along at a good cadence and suddenly put on the back brake, that roller will continue to spin at the cadence you were riding which will be rubbing into the tire. Not sure how much damage that could cause, but probably the reason the manufacturers recommend not to do it.