Originally Posted by ajs
Canadian Tire had that one on sale here for 99.00 last week. I checked it out and came away with some unanswered questions about it. At the advice of their in store rep., I called their 800 number. They could not answer some of my questions so they said they would find out and get back to me. To date, I am still waiting.
The questions they couldn't answer; 1. Does the system compensate for temp. changes as the tire warms up? 2. Being a 4 wheel system, does the system continue to monitor and alarm audibly for the 2 sensors not in use?
That system signals low pressure at two levels. The store felt the first was at a 1.5 lb. drop in pressure, the second at a 3 lb. drop. They were going to confirm this and get back to me. Still waiting.
I purchased this system last year, for $99.
The customer support line was darn near useless. That said, the unit works quite well and it has made it a lot easier for me to monitor the air pressure on a consistent basis. I hate the ritual of having to getting on the ground and contort myself just to get the rear wheel valve stem cap off just to get a pressure gauge in place to check the air pressure. Reverse the process to get the valve stem cap on. Ugh!
The CTC system does work well and saves me all that agro. But, understand that the senders that fit atop the valve stem have their own internal battery and the battery not replaceable. CTC says that they will last 3 years before one has to replace the sender. If I recall correctly, CTC will sell replacement sensors at a reduced price. While it is true that you have 2 unused senders in the package, they may
be viable after the first pair bites the dirt. I do not know if the power in the sender is turned on/off when pressure is applied by installing the unit on the valve stem. Ask me again in 2.75 years, when I install the 2 currently unused sensors.
I cannot answer your question about compensation as temperature increases. I suspect that it does, since the reading on a properly inflated rear tire set at 48 psi when cold, reads close to 60 psi after reaching operating temperature and the readings at "cold" seem to be a bit higher with elevated outside temps.
I do know that the unit does "look" for the 2 missing sensors but then quickly moves on to the sensors that are in place and provides a reading. When seeking a reading, one has to wait as much as 3 minutes for the unit to initially display it's finding. When I am on the road - I put on +50K km in the past 2 riding seasons - I turn the unit on, before I start cleaning the windshield for the day's ride and by the time I've started to load up the bike, I know the state of my tire pressure...all without getting grungy from that little dance that would previously precede checking tire pressure. The display unit can be hard wired into the bike but I prefer to use AA cells and keep the display unit in my tank bag. Battery life seems to be excellent. Still working the initial set.
I asked the Bridgestone rep at the last CCR for his take on this type of tire pressure monitoring system and his point of view was that anything
that lets you accurately gauge tire pressure is beneficial.
I find that I am much more at ease knowing that I can easily and accurately determine tire pressure when I am about to head out for a 700 km jaunt. Since I am now able to check tire pressure with ease, I am getting splendid tire life...my last front skin (stock Bridgestone) gave me a little over 20k km AND NO CUPPING. Considering how badly we in the Great White North get ripped off on tire prices - which undoubtedly will become even more costly with $100 buck a barrel oil - the CTC solution works for me. I save money on tires and am riding safer.
Here's the bottom line from my perspective: I did not relish spending over $300 on the Smart Tire system. The CTC system at 1/3 of the cost seems to do the job, saving me money on tire replacement and providing peace of mind. I am certain that the next generation LT will have a factory provided tire pressure monitoring system in place, much like the latest RT's now have. Even if I do not spring for the next generation LT, and if I get only 3 years life out of the system before I replace it, for what amounts to $35 bucks a year, or 10 Starbucks fancy coffees, it sure works for me. Just avoiding the clean-up following a routine check is worth the cost alone!
If you have more questions, fire away or PM me.