Originally Posted by
ItsJustMe
Mine has been on the bike every day for 2 years in all weather, it still seems like new. It is still extremely grippy, I don't think it's likely to ever lose its grip, it's very stiff and seems very resilient.
Mine still feels as snug as the day I put it on the bike. These are rubber and if you leave the bike outside in the hot sun for days on end, the mount will age faster. I think it will last for years. These are inexpensive; buy two :-)