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5.6K views 24 replies 10 participants last post by  GeeTee  
#1 ·
#7 ·
Pretty, but what do they weigh?

I personally don't care how nice a wheel looks, if it weighs more than the one it replaces you're taking a step backward.
It doesn't matter how much it weights in total. What matters is the distribution of the mass (how much of this mass is on center and how much is on the periphery). If you assume the same mass distribution, then you can compare 2 different wheels by total weight.
 
#12 ·
When I was ordering rims for my vette's or Grand National I was concerned about (unsprung) weight but with this GT I'm okay if they are heavier than the "stock" rims as this car isn't exactly a quarter mile champ lol. Looks / function rule in this application IMHO ... as long as it doesn't kill my gas mileage that's all I care out for this car.
 
#13 ·
When I was ordering rims for my vette's or Grand National I was concerned about (unsprung) weight but with this GT I'm okay if they are heavier than the "stock" rims as this car isn't exactly a quarter mile champ lol. Looks / function rule in this application IMHO ... as long as it doesn't kill my gas mileage that's all I care out for this car.
The criteria you list all call for lighter wheels. Heavier wheels take more work to accelerate and decelerate, negatively affecting your cars acceleration, braking, and gas mileage. There is beauty in form following function. Those RPF-1s are lithe and elegant because they're optimized for both strength and light weight; you have the minimum amount of material following flowing lines that trace the forces that they are designed to handle.

Or to put it differently, you can have beauty in simplicity and grace, or you can have something that has a bunch of tacked-on "style" to distract you from the fact that it's excessively heavy due to a lack of fundamental ground work:
Image


:eek: :D
 
#18 ·
Nice! The "rotary forging" technique they use is also used on the RPF-1s. Makes for a stronger rim while reducing weight in a critical area. What do these run, cost-wise? I paid $180 apiece for the 15 X 8 RPF-1s on my Miata, they're selling in the $200 range now. But you do get what you pay for...
 
#19 ·
Nice! The "rotary forging" technique they use is also used on the RPF-1s. Makes for a stronger rim while reducing weight in a critical area. What do these run, cost-wise? I paid $180 apiece for the 15 X 8 RPF-1s on my Miata, they're selling in the $200 range now. But you do get what you pay for...
These wheels are on the expensive side. Cheapest i found was 250 a piece. But all the other wheels that I have found that look like these with the same weight or lighter are 50+ dollars more. I found a couple heavier ones (24.5 lbs) selling for about 175.