Valve stem on Mazdaspeed wheels

Wheels, Suspension, Brakes & Tyres questions and answers

Moderators: timk, Stu, zombie, Andrew, -alex, miata

User avatar
GS
Fast Driver
Posts: 260
Joined: Mon May 15, 2006 6:40 pm
Vehicle: NA6
Location: Sydney

Valve stem on Mazdaspeed wheels

Postby GS » Fri Jan 02, 2015 4:40 pm

Hi

I bought some second hand Mazdaspeed MS-03 wheels a few years ago which ended up cluttering the garage. I finally went to get tyres fitted to them today, but it turns out that the valve stem is missing on one of the wheels. Apparently these Rays made wheels have a smaller diameter hole for the valve stem, and the local tyre fitters standard rubber valve stems don't fit.

Any idea where to get the small valve stems from? The other 3 wheels have a metal stem with a 90' bend attached. I did some googling this afternoon, and saw a mention that a motorcycle valve might fit?

Cheers.
Image
1989 NA6

User avatar
hks_kansei
Speed Racer
Posts: 6154
Joined: Tue Feb 03, 2009 10:43 am
Vehicle: NB8A
Location: Victoria

Re: Valve stem on Mazdaspeed wheels

Postby hks_kansei » Sat Jan 03, 2015 1:55 am

the 90 deg bend ones are the standard ones for the MS03.

You can purchase metal stems that screw in from the back and squeeze a rubber seal that should fit, that is how the original stems are fitted.
949 racing make these kind of stems, but I cant remember if they fit the 03 or not.


The other option is to have the stem holes drilled to suit standard stems

edit:
actually these randoms ones on ebay look about right
http://www.ebay.com.au/itm/LOT-OF-TWO3x ... 259c82fa04

find something like that and confirm measurements with the seller before buying
1999 Mazda MX5 - 1989 Honda CT110 (for sale) - 1994 Mazda 626 wagon (GF's)

User avatar
GS
Fast Driver
Posts: 260
Joined: Mon May 15, 2006 6:40 pm
Vehicle: NA6
Location: Sydney

Re: Valve stem on Mazdaspeed wheels

Postby GS » Tue Jan 06, 2015 10:01 am

Thanks hks_kansei!

I considered drilling out the stem hole as well as a worst case solution.

I left the wheels with the tyre fitter to see if he could find any appropriate stems from his suppliers (he didn't sound hopeful hence this post). Turns out he had a result and now I've got 4 new 90 deg metal stems at 3 bucks a pop!

Wheels are now fitted with a set of RE002's and on the car, and the result is fantastic. The Old Girl feels like a new car now compared to the old 17's with very old rubber.

Happy chappy...
Image
1989 NA6


Return to “MX5 Wheels, Suspension, Brakes & Tyres”

Who is online

Users browsing this forum: Google [Bot] and 39 guests