Joined: Aug 2010
Posts: 12,760
Likes: 2,117
From: Madison, WI
Bikes: 1961 Ideor, 1966 Perfekt 3 Speed AB Hub, 1994 Bridgestone MB-6, 2006 Airnimal Joey, 2009 Thorn Sherpa, 2013 Thorn Nomad MkII, 2015 VO Pass Hunter, 2017 Lynskey Backroad, 2017 Raleigh Gran Prix, 1980s Bianchi Mixte on a trainer. Others are now gone.
I tried some in some 2.0 or 2.125 width tires. When I put them in, I could not keep the liners centered in the tire, but figured it was better than no liner. Then when I inflated the tires, the handling was really weird because the liners did not allow the tires to take the normal shape and the tires rolled quite odd. Took the liners out, no weird handling after that. But I have used liners in narrower tires in the 28 to 32mm range without any problems.
I suspect that they may increase rolling friction, so if you are a speed demon, they may slow you down a bit. But I have no data on this, it is only a suspicion.