Newbie question here. Is there an easy way to tell whether the wheels on my C4S are have hollow or solid spokes? I tried searching but couldn't find an answer.

 

The Turbo 1 hollow spoke wheels have (width, part number):
7.5 - 993.362.134.05
8 - 993.362.136.00
9 - 993.362.138.00
10 - 993.362.140.00
10 - 993.362.140.01


The turbo 2 hollow spoke wheels have (width, part number):
8 - 996.362.136.04
11 - 996.362.142.03
11 - 996.362.142.11

The part number (with the possible exception of the first 3 digits) should be stamped on the inside of the wheel.

 

ALso, just by looking at the back of a wheel, solid spokes will have a groove down each side of the spoke.

 

Thanks for the quick reply! The car is an '03 996, so I will take a look and see which numbers are stamped on the spokes.

 

Thanks Brando. The wheels do have two grooves on each spoke so that answers the question without having to lift the car or pulling the wheels to look for the numbers. Thanks guys.

Oscar

 

just feel behind the spokes... if its smooth its hollow. If you feel a crease then, it solid. Though Solids are a lot stronger the hollows are lighter... GT2 use solids.

 

According to my scales......there is excatly a 2.5lb difference both F&R between the solids that came on my C4S and the hollow TT's I have now.

 

fyi, i heard the hollow spokes bend a lot easier than the solid ones

 

that's it? is that 2.5lbs each corner?

 

That's what I said.......I thought there was more of a difference. Wish I had of just kept the solids.

Used same scale.......remounted same tires.

Solids - 44.5 lbs F & 55.5 lbs R
Hollow - 42 lbs F & 53 lbs R

 

it's early sorry

 

Another way to identify them is the use of a metal valve for the turbo ones...