Martian Wheels MW03

[TwoK4drSi]

Would message them to see what Drew says, 3.5lb seems like a lot of deviation almost 20%.

This is 18x8.5 after finish. No lies. No BS. You should have Martian wheels actually prove their weights. Are y’all sure Martian wheels are forged?
[ATTACH=full]582450[/ATTACH] [ATTACH=full]582451[/ATTACH]

 

[TEG]

Wow...that’s really wrong. Been following this thread and saw a few posts on missed weights but 3.5lbs?!?? That seriously false advertising and deception. Only @SignatureSales truely post weights and you get what you paid for.

He got MORE than he paid for...
( More weight that is. )

 

[xtnvieira]

Thanks for all the useful info in this thread so far, but can anyone tell me if their speedometer/odometer has been affected by these different wheel/tire sizes?

I have a Model Y Performance and I want to swap out the Ubers for a set of MW03 wheels, but I'm torn about what size to get and the corresponding tire.

My main goals are: (1) a lighter wheel for weight reduction and efficiency gains (2) a slightly narrow wheel for less rolling resistance (3) not throw off my speed and odometer - the speed is the bigger issue because it would drive me nuts.

If a narrower wheel (either 18x8.5 or 19x8.5) means I have to get a weird tire size that throws off the speedo, then I probably will just go with the 19x9.5 since I can at least get a tire that matches the size of the OEM 19" and shouldn't have any calculation issues in-car. Anyone have thoughts or experience with this for me? I apologize if these are obvious questions, but trying to figure out 3rd party wheels and tires is new to me.

 

[ElectricIAC]

Thanks for all the useful info in this thread so far, but can anyone tell me if their speedometer/odometer has been affected by these different wheel/tire sizes?

I have a Model Y Performance and I want to swap out the Ubers for a set of MW03 wheels, but I'm torn about what size to get and the corresponding tire.

My main goals are: (1) a lighter wheel for weight reduction and efficiency gains (2) a slightly narrow wheel for less rolling resistance (3) not throw off my speed and odometer - the speed is the bigger issue because it would drive me nuts.

If a narrower wheel (either 18x8.5 or 19x8.5) means I have to get a weird tire size that throws off the speedo, then I probably will just go with the 19x9.5 since I can at least get a tire that matches the size of the OEM 19" and shouldn't have any calculation issues in-car. Anyone have thoughts or experience with this for me? I apologize if these are obvious questions, but trying to figure out 3rd party wheels and tires is new to me.

Yeah, finding a tire that matches the overall size would be key.

 

[scarpiamod3]

Thanks for all the useful info in this thread so far, but can anyone tell me if their speedometer/odometer has been affected by these different wheel/tire sizes?

I have a Model Y Performance and I want to swap out the Ubers for a set of MW03 wheels, but I'm torn about what size to get and the corresponding tire.

My main goals are: (1) a lighter wheel for weight reduction and efficiency gains (2) a slightly narrow wheel for less rolling resistance (3) not throw off my speed and odometer - the speed is the bigger issue because it would drive me nuts.

If a narrower wheel (either 18x8.5 or 19x8.5) means I have to get a weird tire size that throws off the speedo, then I probably will just go with the 19x9.5 since I can at least get a tire that matches the size of the OEM 19" and shouldn't have any calculation issues in-car. Anyone have thoughts or experience with this for me? I apologize if these are obvious questions, but trying to figure out 3rd party wheels and tires is new to me.

May want to wait and see what martian does about the customer in this thread who got wheels that weighed 3.5 lbs more than what they told him.

 

[TwoK4drSi]

Did anyone ordered the Martian Wheels MW03 in 19x9.5" +45 offset for their Model Y? Site specs are 19.5 lbs but I weighed them at 23 lbs. This is 3.5 lbs and much more than I was expecting. So strange and disappointed as I bought them for the weight saving performance.

Can you post a pic of the wheel on a scale? @Woundman and @TonyJag have reported inaccurate weights. Anyone else showing higher wheel weights?

 

[xtnvieira]

Yeah, finding a tire that matches the overall size would be key.

Could I put 255/45/19 tires on the 19x8.5 wheel or is that a terrible idea? That would be the stock OEM size on a slightly narrower wheel but wouldn’t give me speedo issues I would think.

 

[SigNC]

Could I put 255/45/19 tires on the 19x8.5 wheel or is that a terrible idea? That would be the stock OEM size on a slightly narrower wheel but wouldn’t give me speedo issues I would think.

Stock on a 19 is 235/40 I believe and also pretty sure stock wheel is 8.5 also.

 

[xtnvieira]

Stock on a 19 is 235/40 I believe and also pretty sure stock wheel is 8.5 also.

Sorry, I’m referring to Model Y. The standard wheel is 19x9.5 with 255/45/19 tires for the base Gemini wheels. I am swapping my 21” Uberturbines and don’t care for the look of the Geminis.

 

[TonyJag]

Hi - I've just ordered a set of the Martian 18x7.5s for my M3P and wanted to get some advice on the best tire to go for to totally maximise efficiency ( @TonyJag ?).
Yes, but before you call Drew, try different scales. I used a luggage scale, a fish scale and a bathroom scale.

Basically, will a 205/45 or 215/45 EU B rated tire give better Wh/mile than a 225/45 A rated? Or are there too many other variables?

Second question: Will the stock Tesla aero covers from the SR+ fit onto these wheels?

You mentioned my name. All of the tires in the rolling resistance study are with standard

Would message them to see what Drew says, 3.5lb seems like a lot of deviation almost 20%.

 

[sirkdub]

Would message them to see what Drew says, 3.5lb seems like a lot of deviation almost 20%.

I have sent an email but haven’t receive a reply yet.

 

[Tanis]

Thanks for all the useful info in this thread so far, but can anyone tell me if their speedometer/odometer has been affected by these different wheel/tire sizes?

I have a Model Y Performance and I want to swap out the Ubers for a set of MW03 wheels, but I'm torn about what size to get and the corresponding tire.

My main goals are: (1) a lighter wheel for weight reduction and efficiency gains (2) a slightly narrow wheel for less rolling resistance (3) not throw off my speed and odometer - the speed is the bigger issue because it would drive me nuts.

If a narrower wheel (either 18x8.5 or 19x8.5) means I have to get a weird tire size that throws off the speedo, then I probably will just go with the 19x9.5 since I can at least get a tire that matches the size of the OEM 19" and shouldn't have any calculation issues in-car. Anyone have thoughts or experience with this for me? I apologize if these are obvious questions, but trying to figure out 3rd party wheels and tires is new to me.

Use a tyre comparison calculator. Look for an option which matches the original diameter the best, and is easilly available as well. If you compare the diffrent original tyre options, you see that they differ a little bit as well. If it is within 1%, it's fine.

255 works on a 8,5" rim, better rim protection from the tyre. They can build a custom wheel in 9" with, which would be optimal size I guess.

 

[sirkdub]

Can you post a pic of the wheel on a scale? @Woundman and @TonyJag have reported inaccurate weights. Anyone else showing higher wheel weights?

I didn’t take a photo but how I weighed it was first myself standing on the scale and then myself holding the wheel. I math the difference and came to 23 lbs. Have no reason to make this up. It is actually a hassle for me to deal with this. I have emailed Martian Wheel and awaiting a response.

 

[xtnvieira]

Use a tyre comparison calculator. Look for an option which matches the original diameter the best, and is easilly available as well. If you compare the diffrent original tyre options, you see that they differ a little bit as well. If it is within 1%, it's fine.

255 works on a 8,5" rim, better rim protection from the tyre. They can build a custom wheel in 9" with, which would be optimal size I guess.

Thanks for the reply. Looks like I could get 245/45/19s pretty easily and significantly cheaper than 255s, plus the difference seems very minimal.

 

[ElectricIAC]

Thanks for the reply. Looks like I could get 245/45/19s pretty easily and significantly cheaper than 255s, plus the difference seems very minimal.
View attachment 582678

Speedo already runs fast TBH. Consider a Michelin tire of downsizing as they tend to be slightly “wider” than advertised.

 

[xtnvieira]

Speedo already runs fast TBH. Consider a Michelin tire of downsizing as they tend to be slightly “wider” than advertised.

I’m actually planning on getting Michelin A/S Sport 4s so I’d be okay saving some $$ by getting 245s vs 255s.

 

[ElectricIAC]

I’m actually planning on getting Michelin A/S Sport 4s so I’d be okay saving some $$ by getting 245s vs 255s.

That should work!

I’m still patiently waiting for these guys to come out with a S/X wheel in 18” or 19” to do some comparisons. May order both sets at that point.

 

[TwoK4drSi]

I didn’t take a photo but how I weighed it was first myself standing on the scale and then myself holding the wheel. I math the difference and came to 23 lbs. Have no reason to make this up. It is actually a hassle for me to deal with this. I have emailed Martian Wheel and awaiting a response.

Oh I never said or implied you were but I think pictures would help the community. Martian being a new wheel brand has some unknowns and it would probably help the questions being asked here better.

 

[SigNC]

Sorry, I’m referring to Model Y. The standard wheel is 19x9.5 with 255/45/19 tires for the base Gemini wheels. I am swapping my 21” Uberturbines and don’t care for the look of the Geminis.

oops, sorry should have seen your signature.

 

[sirkdub]

Oh I never said or implied you were but I think pictures would help the community. Martian being a new wheel brand has some unknowns and it would probably help the questions being asked here better.

No worries. I didn't take it that way at all. It is just a bit difficult holding a 23lb wheel with my hands and trying to snap a photo at the same time. The wheels don't sit properly by itself on the scale so I can't take a photo that way either.