Racing Snake Posted February 14, 2012 Share Posted February 14, 2012 Anyone know the standard wheel offsets for a CSR 🤔 Link to comment Share on other sites More sharing options...
weeman Posted February 14, 2012 Share Posted February 14, 2012 !5" or 13". The 15" Rears are marked ET30 and the fronts are marked ET13. This figure for the front is almost certainly innaccurate AFAIK CC took the standard 15" wheel and had the centres machined down for use on the CSR, however the wheel markings on the inside of the spokes remain the same. If you give me an hour I'll measure the offsets for you if your prepared to accept my measurements. Be lucky!! Martin Link to comment Share on other sites More sharing options...
Croc Posted February 14, 2012 Share Posted February 14, 2012 The specs I received from Caterham during the build process are contained in the attachment inside this Linky Fronts are marked ET13 but are machined to ET40. Rears are ET8 However, despite this coming from Caterham I think Weeman is right with the rears being ET30 as the CSR race wheels are: 7x13 - et40 - 139mm backspace 9x13 - et30 - 158mm backspace     Link to comment Share on other sites More sharing options...
NoLimits Posted February 14, 2012 Share Posted February 14, 2012 I'll have to have a look but I have a sold a couple of sets if the 3 piece lightweight wheels in 13" to CSR owners and they fit fine. I'll check the orders. Link to comment Share on other sites More sharing options...
Racing Snake Posted February 14, 2012 Author Share Posted February 14, 2012 Thanks guys I need the offsets for both 13" and 15" please Link to comment Share on other sites More sharing options...
weeman Posted February 14, 2012 Share Posted February 14, 2012 Not quite the hour that I promised but here's what I measured  The rear 15" wheel is ET30 as per the stamp on the spokes. The front 15" wheel measures ET38 (yes thirty eight). This seems rather extreme but it does make sense when you put the CSR 15" wheel alongside the standard 15" wheel and see the amount of material that has been machined away. I don't have 13" wheels to measure. Hope this helps. Be lucky!! Martin   Edited by - weeman on 16 Feb 2012 08:39:22 Link to comment Share on other sites More sharing options...
Racing Snake Posted February 15, 2012 Author Share Posted February 15, 2012 Link to comment Share on other sites More sharing options...
Alaskossie Posted February 18, 2012 Share Posted February 18, 2012 Anyone know why CC recommend that the 15X9 CSR wheel not be used on the rear of an S3, as they will not fit? (At least, that is what the US CC distributor told me). Swimming against the tide, I installed the wider CSR 15X9 inch wheel and Avon CR500 tyre in 245/40 R15 size on the rear of my 2007 S3. I used a 5-mm spacer (though it might not really be needed). The stock wheel studs are long enough to fully seat the wheel nuts. These tyres fill out the rear-wheel wells nicely! Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now