Flipsonic

I have a 2006 IS250 and TPMS is not compatible with my aftermarket wheels. The valvestem comes out from the middle of the hub and it turns 90 deg out. I've been looking at the TPMS and if I install it in place of the 90 deg valvestem, it looks that it can work.

One of the issue is how would I fill it with air being that it's in the middle of the hub? I went to the gas station and since the air nozzle is a flexible rubber hose, I'll be able to bend it and still fill the tire with air.

Will the TPMS valvestem clear the caliper? Yes, I measured and there is plenty of room.

The only concern I have is the TPMS will be perpendicular to the hub. It is designed to go on an angle so the sensor will be flat on the hub. In my case, it will be perpendicular to the hub so the sensor will be sticking out about .5" beyond the protection of the lips of the rim. Since the tires are low profile (235/35/19 and 275/30/19), I'm concerned the sensors might be crushed when I hit a bump. Or do you guys think there is enough space for protection?

Here is a pic of the aftermakret wheel valvestem.


TPMS

GSXOTIC

iTrader: (6)

Your concern is right on the nose and i have heard a few people damaged the TPS while hitting the bump or just pot holes. For many SC430 owners we have figured a way to permanently disconnect the TPMS system to avoid the warning light and forgo the TPMS on our aftermarket wheels because the valve stem share the some configuration like yours (very typical for JDM wheels). Anyways, do a search and you will find lots of people have "some" solutions (i.e. strap) but the best solution is to buy the wheels that is TPS compatible if you ask me. Just my .02.

Flipsonic

Thanks. I read all the posts such as putting the sensors in a wheel barrow tire, pressurized cannister, spare tire, strapping to wheels. However I want a working TPMS that will stay on the wheels. Just thought this might work but wasn't sure about hitting big bumps and potholes. I guess people just don't want to chance it huh?

rominl

iTrader: (4)

definitely not worth the risk. you can really easily hit a pothole or so and the tires compress and damage the whole TPS

mitsuguy

iTrader: (2)

there are adaptors that are available through Discount Tire (discounttiredirect.com) or local... (I used to work there for 6 years)... Anyways, it's pretty much just a right angle piece of aluminum that bolts through the normal valve stem hole with a special valve stem, and then allows the entire sensor (valvestem and all) to be installed inside the wheel, laying it flat against the barrel of the wheel...

we've used these many times and they work great, you just have to make sure the sensor is oriented similar to the way it came out of the stock wheel....