# Found wheel weight stamped "MC-Zn" **URL:** \ **Category:** Maintenance/Repairs\ **Created:** [December 24, 2016, 11:20pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670 "2016-12-24T23:20:12Z")\ **Posts on this page:** 18\ **Page:** 1
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [December 24, 2016, 11:20pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/1 "2016-12-24T23:20:12Z")
Any ideas what that means? Another number stamped on it , “1.5”, which I presume means it is a 1.5 ounce weight. I’m thinking the Zn means Zinc, but even if that’s correct, no idea what the MC means. ---
**Author:** ![Nevada\_545](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/nevada_545/32/41232_2.png) [@Nevada\_545](https://community.cartalk.com/u/Nevada_545)\ **Post date:** [December 24, 2016, 11:54pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/2 "2016-12-24T23:54:03Z")
“MC” is the clamping style for certain aluminium wheels, it matches the shape of the wheel lip. There are many specific types of clip-on wheel weights for steel and aluminum wheels. ---
**Author:** ![BillRussell](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/billrussell/32/3179_2.png) [@BillRussell](https://community.cartalk.com/u/BillRussell)\ **Post date:** [December 24, 2016, 11:54pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/3 "2016-12-24T23:54:15Z")
Zn is definitely Zinc. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [December 25, 2016, 2:06am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/4 "2016-12-25T02:06:37Z")
> [@BillRussell](#): > > Zn is definitely Zinc. Yup. Zinc and lead are the most common wheel weight materials, along with steel. ---
**Author:** ![asemaster](https://avatars.discourse-cdn.com/v4/letter/a/5f9b8f/32.png) [@asemaster](https://community.cartalk.com/u/asemaster)\ **Post date:** [December 25, 2016, 2:07am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/5 "2016-12-25T02:07:51Z")
Lead weights have been illegal for years now. ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [December 25, 2016, 2:14am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/6 "2016-12-25T02:14:53Z")
True, but they’re still around. ---
**Author:** ![CapriRacer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/capriracer/32/22_2.png) [@CapriRacer](https://community.cartalk.com/u/CapriRacer)\ **Post date:** [December 25, 2016, 2:06pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/7 "2016-12-25T14:06:30Z")
Second vote for MC referring to the shape of the weight - one that matches the rim contour. I think there are 4 or 5 different kinds. - opps! There are 7, not counting tape on weights. Here’s a chart: [http://www.perfectequipment.com/content/site/dateien/9672013\_PEI\_ApplicationGuide.pdf](http://www.perfectequipment.com/content/site/dateien/9672013_PEI_ApplicationGuide.pdf) ---
**Author:** ![Mustangman](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/mustangman/32/44130_2.png) [@Mustangman](https://community.cartalk.com/u/Mustangman)\ **Post date:** [December 26, 2016, 6:05pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/8 "2016-12-26T18:05:33Z")
Wow, @CapriRacer I had NO idea there were as many different clip styles! Thanks! ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [December 28, 2016, 2:08am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/9 "2016-12-28T02:08:12Z")
Informative wheel weight link there, thanks. Seems “MC” type wheel weights fit Buick, Cadillac, Chevrolet, Chrysler, Dodge, Eagle, Ford, Lincoln, Mazda, Mercury, Mitsubishi, Oldsmobile, Plymouth, Pontiac & Saturn ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [December 29, 2016, 9:48pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/10 "2016-12-29T21:48:43Z")
That is a great link, Capri, and I thank you for it. Like others, I had no idea there was so much variety available. 😋 ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [December 30, 2016, 2:44am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/11 "2016-12-30T02:44:53Z")
Here’s another puzzle. The complete set of writing on the wheel weight in question: “1.5 MC-Zn 43” Assuming 1.5 means 1.5 ounce, and MC-Zn already explained, I wonder what the “43” means? ---
**Author:** ![CapriRacer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/capriracer/32/22_2.png) [@CapriRacer](https://community.cartalk.com/u/CapriRacer)\ **Post date:** [December 30, 2016, 1:31pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/12 "2016-12-30T13:31:40Z")
43 grams = 1.5 oz! ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [December 30, 2016, 11:19pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/13 "2016-12-30T23:19:42Z")
I think you solved the final wheel weight puzzler there @CapriRacer … excellent work! ---
**Author:** ![the\_same\_mountainbike](https://avatars.discourse-cdn.com/v4/letter/t/c89c15/32.png) [@the\_same\_mountainbike](https://community.cartalk.com/u/the_same_mountainbike)\ **Post date:** [January 3, 2017, 9:55pm UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/14 "2017-01-03T21:55:23Z")
When it comes to wheels and tires, Capri has solved many a puzzle! He’s a good man to have on board. 😉 ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [January 4, 2017, 12:42am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/15 "2017-01-04T00:42:04Z")
This discussion PROVES why the “solution” checkmark is not a good idea This discussion was “solved” 9 days ago, yet it’s alive and well 😏 ---
**Author:** ![George\_San\_Jose1](https://avatars.discourse-cdn.com/v4/letter/g/e5b9ba/32.png) [@George\_San\_Jose1](https://community.cartalk.com/u/George_San_Jose1)\ **Post date:** [January 4, 2017, 1:08am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/16 "2017-01-04T01:08:22Z")
Are you objecting to the word “solved” then for that check-mark @db4690 ? It’s true, nothing is ever completely solved. I interpret a post checked as “solved” as meaning it is the most helpful of the posts in the thread to date. According to the needs of the OP. And that might prove a valuable time saving method for somebody with the same problem and not having enough time to read through every post in the thread. ---
**Author:** ![db4690](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/db4690/32/2583_2.png) [@db4690](https://community.cartalk.com/u/db4690)\ **Post date:** [January 4, 2017, 1:11am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/17 "2017-01-04T01:11:21Z")
I’ve already talked about this before, and my position hasn’t changed The whole “solved” idea wasn’t a good one, to begin with I call it as I see it 😈 ---
**Author:** ![CapriRacer](https://sea1.discourse-cdn.com/cartalk/user_avatar/community.cartalk.com/capriracer/32/22_2.png) [@CapriRacer](https://community.cartalk.com/u/CapriRacer)\ **Post date:** [March 4, 2024, 11:33am UTC](https://community.cartalk.com/t/found-wheel-weight-stamped-mc-zn/97670/18 "2024-03-04T11:33:15Z")
Yes, it’s been 8 years, but the link doesn’t work anymore. And apparently folks are still looking at this thread, because I got an award for the link - the one that doesn’t work!! But here’s one that does: [Barry’s Tire Tech: Wheel Weight Chart 2005-2018](https://www.barrystiretech.com/wheelweightchart2.pdf)