08-12-2021, 08:45 AM | #1 |
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Light weight wheel options??
I’m seeking a set of lightweight, strong and good looking wheels that are going to cut around 10lbs per corner over the factory wheels.
So far I’ve found a set from Titan that are forged and 22lbs, however, they only have 3 of them in stock, in black. Does anyone have any suggestions? |
08-12-2021, 11:54 AM | #3 |
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HRE R101's are near exactly 10lbs lighter per corner than the 789M's.
789M: Front: 28lbs Rear: 29.5lbs 706M: Front: 34.6lbs Rear: 35.8lbs 863M: Front: 27.8lbs Rear: 29.2lbs 963M: Front: 21.8lbs Rear: 24lbs 1000M: Front: 26.7lbs Rear: 27.9lbs 20" R101: Front: 18.2lbs Rear: 18.8lbs 21" FI-R Front: 20.8lbs Rear: 22.1lbs |
08-12-2021, 12:20 PM | #4 |
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I reviewed the Dinan DC3 wheels several months ago. They were a bit heavier than advertised, but still about 10 lbs per wheel lighter than the stock M5 cast wheels (706M).
Here is a link: https://f90.bimmerpost.com/forums/sh...ighlight=dinan. I would have loved a set of the HRE wheels, but I believe they cost about 3x the Dinan wheels and I could not justify that level of expense. Good luck with your shopping. |
08-12-2021, 12:23 PM | #5 | |
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One note, it appears that the 963M wheels are 19" front rather than 20" so not quite an apples to apples and possibly not a great fit for an M5 Comp. |
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08-12-2021, 12:24 PM | #6 | |
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Yeah, just a collection of wheel weights I have jotted down. |
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08-12-2021, 02:44 PM | #7 |
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I have the Titan 7s, love them, reasonable price, super light. Shame they aren't in stock!!!
I had the gunmetal finish and about to refinish in black. Highly recommend. |
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08-12-2021, 10:34 PM | #11 |
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08-12-2021, 10:55 PM | #12 |
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You're not accounting for the physics in unsprung vs sprung mass; yes, it's a heavy freggin' car, but unsprung weight makes a statistically significant difference in performance for every pound you're able to shed, and there's only hundreds of pounds of total unsprung mass in any given vehicle to start with.
My 4400LB SQ5 ran a 12.5 best (it was more like 12.7 repeatable) in beyond ideal -1300DA on the heavy stock 21" wheels, and the same car, in the exact same spot, in much worse +300DA, ran a 12.3 repeatedly after I had swapped my 20" HRE's on, they shed 14lbs per corner of unsprung mass. The quickest route to results from weight reduction is in unsprung mass, always start with the wheels no matter how much the car weighs.
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08-12-2021, 11:00 PM | #13 | |
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Thank you |
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08-13-2021, 05:20 AM | #14 |
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Wishing the M5 comp was a little more popular to have a dedicated wheel thread. Would like to see some options as well. I know BC forged makes some nice looking wheels that are light weight too.
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08-13-2021, 07:35 AM | #15 | |
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Second photo was taken this weekend at Mpact in the Auto Couture display. Last edited by FatRear08; 08-13-2021 at 07:59 AM.. |
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08-13-2021, 01:41 PM | #17 |
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If it's the one I think it is, it's 21" HRE R101LW.
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08-13-2021, 06:46 PM | #21 |
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Thanks for the inquiry. Our monoblock and track series lineup are about 20LB in your fitment, we can do factory offset and a bit more flushed / but factory width.
From signature wheels, they also have a sale on right now. Any reviews from these guys? |
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08-15-2021, 01:58 AM | #22 |
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They look almost identical to me lol
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