[Max Well]

Originally Posted by brandonloos_21

New wheel setup on.

Brixton RF10’s on Atturo AZ850’s.
21x11 +25 rear - 295/35/21
21x9.5 +20 front - 265/40/21 ...

Thanks for contributing to the Members' List, brandonloos_21 - they look great!

I've completed your entry but had to place it in the 'Weights Not Available' section (I'm still missing just your front wheel wt). Vividracing has the rear wheel wt on their website and the Atturo website does a great job sharing their tire wts. If you can just ask your Vendor or Brixton I'm sure they can get you the front wheel wt immediately as these appear to be a standard size they produce, and then I'll move your entry up to the 'Known' list. Also, I'm guessing the wheel finish was 'Satin Black', as that appears to be the finish for many of the packages different sites put together?

[brandonloos_21]

Originally Posted by Max Well

Thanks for contributing to the Members' List, brandonloos_21 - they look great!

I've completed your entry but had to place it in the 'Weights Not Available' section (I'm still missing just your front wheel wt). Vividracing has the rear wheel wt on their website and the Atturo website does a great job sharing their tire wts. If you can just ask your Vendor or Brixton I'm sure they can get you the front wheel wt immediately as these appear to be a standard size they produce, and then I'll move your entry up to the 'Known' list. Also, I'm guessing the wheel finish was 'Satin Black', as that appears to be the finish for many of the packages different sites put together?

Thanks I appreciate it. Also, absolutely! Not a problem.

Wheel finish is satin black.

I did some digging and on vivid racing I find that wheel weight to be 34.8 lb!

Vivid Racing Wheel link

[Max Well]

Originally Posted by brandonloos_21

Thanks I appreciate it. Also, absolutely! Not a problem. Wheel finish is satin black. I did some digging and on vivid racing I find that wheel weight to be 34.8 lb! Vivid Racing Wheel link

Thanks, brandonloos_21 - if you don't mind double-checking with Brixton on both the front and rear wheel wts it would help for us to be sure, as it doesn't seem possible the fronts weigh 2.4 lbs more than the rears?

[brandonloos_21]

Originally Posted by Max Well

Thanks, brandonloos_21 - if you don't mind double-checking with Brixton on both the front and rear wheel wts it would help for us to be sure, as it doesn't seem possible the fronts weigh 2.4 lbs more than the rears?

My thoughts as well.. Lol. Yes i will email them

[brandonloos_21]

Originally Posted by Max Well

Thanks, brandonloos_21 - if you don't mind double-checking with Brixton on both the front and rear wheel wts it would help for us to be sure, as it doesn't seem possible the fronts weigh 2.4 lbs more than the rears?

From brixton: 32.4lbs front and 33.7lbs rear

[Max Well]

Originally Posted by brandonloos_21

From brixton: 32.4lbs front and 33.7lbs rear

Excellent, thanks - I moved your updated entry into the 'Known Wts' section.

[Max Well]

Adding a great-looking combination from Rottweiler which he shared over in the G01/02 sub-Forum. I produced a data entry as we would have in our list, but I don't want to mix the F97/98-G01/02 series in case subtle fitment differences might confuse as to what will and will not definitely fit in these respective models.

Rottweiler : Total G01/02 for HRE RC104 in ‘Gloss Charcoal’ (21x9.5 ET20, 21x11 ET35)/Pirelli P Zero (265/40 R21, 305/35 R21) - 217 lbs https://x3.xbimmers.com/forums/showp...&postcount=908 ] and PM from Rottweiler 22 Apr 2024, 305PM sharing the individual wts. {Ft wheel/tire: 52.3 lbs, Rear wheel/tire: 55.95 lbs}{Separate wts - Ft wheel: 23.3 lbs, Ft tire: 29 lbs, Rear wheel: 23.95 lbs, Rear Tire: 32 lbs}

[Rottweiler]

Originally Posted by Max Well

Adding a great-looking combination from Rottweiler which he shared over in the G01/02 sub-Forum. I produced a data entry as we would have in our list, but I don't want to mix the F97/98-G01/02 series in case subtle fitment differences might confuse as to what will and will not definitely fit in these respective model

Thank you Max 🙌

[kregers]

Installed Rays gt090
Front 10*21 et26 265/40/21
Rear 11*21 et30 295/35/21
Conticontact 7
Perfect setup on the front
Little bit outside on rear

[Max Well]

Originally Posted by kregers

Installed Rays gt090
Front 10*21 et26 265/40/21
Rear 11*21 et30 295/35/21
Conticontact 7
Perfect setup on the front
Little bit outside on rear

Thanks for sharing, kregers - I’ve added your entry to the list in the ‘Wt N/A’ section. I found the tire wts, so if you can share the wheel wts I’ll be able to move you up to the ‘Wt Known’ section.

Also, if you can share the finish color, and ideally at least one picture that’d be great. I’ll bet it looks fantastic (and has a pretty low total wt)!

[maxver]

How do you guys find the difference (comfort, spirited driving etc.) after changing to significantly lighter wheels?

Feeling is usually subjective, so unless the difference is measured in some way, it would be helpful it could express the difference in percentages. It's probably a weird ask but I find it to be quite helpful when others comments that the ride comfort/quality improved by approximately 20-25% for example.


I am currently running 765M R21 with RFT Alenza 001. I do quite like the looks of these wheels, however as I am planning to change the tires to PS4S or ECS02. I've been wondering if I should also change the wheels to R20 while at it and drop some extra weight, primarily improve the ride quality. I've been eyeing Braelin BR10 or Superspeed RF07, which would drop about 20 lbs per corner (total weight including tires).

Another option I'm considering is to just keep the 765M R21 and just put the PS4S or ECS02 on them and not bother with the smaller or lighter wheels.

[Max Well]

Originally Posted by maxver

How do you guys find the difference (comfort, spirited driving etc.) after changing to significantly lighter wheels?

Feeling is usually subjective, so unless the difference is measured in some way, it would be helpful it could express the difference in percentages. It's probably a weird ask but I find it to be quite helpful when others comments that the ride comfort/quality improved by approximately 20-25% for example.


I am currently running 765M R21 with RFT Alenza 001. I do quite like the looks of these wheels, however as I am planning to change the tires to PS4S or ECS02. I've been wondering if I should also change the wheels to R20 while at it and drop some extra weight, primarily improve the ride quality. I've been eyeing Braelin BR10 or Superspeed RF07, which would drop about 20 lbs per corner (total weight including tires).

Another option I'm considering is to just keep the 765M R21 and just put the PS4S or ECS02 on them and not bother with the smaller or lighter wheels.

Welcome to the Forum, maxver. Although you've posted in the F97 X3M/F98 X4M sub-forum, instead of the G01 X3 series/G02 X4 series which you own, the concept of lighter wheels/tires improving performance and handling has effects in most vehicle types.

I understand your desire for objective percentages for a subjective impression, but even those become subjective making an exact number difficult to translate to others. Just look at how some of us feel the F97/98 suspension is fine, while others say it's too firm...

Personally, when I reduced unsprung wt by 44 pounds with my BC Forged wheels, I have definitely (subjectively) noted a significant improvement in handling. And objectively I ran my fastest time at the Strip with them. Way too many variables going on at a Strip (DA, tire pressure, fuel, gross wt, track prep, ...), but did want to share that.

It might be helpful for you to pose this question over in the G01/02 sub-forum as they'll have more experience with your series. Rottweiler in particular has a special interest in this and extensive experience with lighter wheels in his G02 X4 M40i. That sub-forum can be found at: https://x3.xbimmers.com/forums/forumdisplay.php?f=666