I recently purchased one of the TireGard tire pressure monitors for peace of mind - I have been chasing down a very slow leak on an "almost new" rear tire, and I hate having to replace it.
I even made an aluminum bracket to match the bracket for my AudioVox cruise control. The receiver is velcro'd on and the little key chain clips though a hole for safety:
Life was good - until I decided to hop on the freeway to run an errand. About 6-7 miles later, the front end just didn't feel right. I looked down at the TPM and the low pressure warning was being displayed for the front tire. That couldn't be right, it's the rear tire I am having problems with!
I pulled over and low and behold, the front tire is completely flat. Here are some pics after I got the bike back home:
In hindsight, I should have had the stems changed at the last tire change. This is an 05 that sat new in the box for two years until I bought it in Dec 07. Current mileage is around 19k
I still like the system, but I obviously need to change to a metal valve stem, preferably straight and not a 90.
Also I am going to go ahead and buy a new set of tires (front and rear). I am really sold on the BT020's primarily because even with a flat tire the bike is still manageable. I rode about a mile to get off the freeway. On my ST1100 I had both tires go completely flat on the freeways after I ran over an unseen object which actually bent the rims on both wheels! Do they BT021's still have a very stiff sidewall like the 020's?