HELP! Audi TT 2.0 Alloys

toxicalf · 2025-10-06T05:01:52-0400

Hello

I’m looking into swapping my stock 18‑inch wheels to an aftermarket set of 8J x 18 ET45 alloys for my 2007 Audi TT. Before I pull the trigger, I want to make sure I’m not going to run into serious fitment issues.

Will 245/40/18 tyres still be safe / appropriate on 8″ rims?
Should I plan for spacers (and if so, how thick) or will the wheels fit clean without them?

Thanks in advance
Alf.

Hoggy · 2025-10-06T05:39:48-0400

Hi, Depending on the design of the rim/spokes they should be fine.
Mk2 ET is usually 52 so ET 45 could be 7mm closer to the arch. Spacers not req. What is the ET on your stock wheels?
Is the PCP 5 x 112 on the new alloys?
Hoggy.

toxicalf · 2025-10-06T06:15:13-0400

Thanks for the reply!
I'm not actually sure what size my current alloys are, but the tyre size on them is 245/40/18.
The new alloy size is 8.0x18, 5/112, ET45, CH 66.5.
I know the centre bore on these alloys is 66.5, while my TT has a 57.1mm, so I’ll need to use spigot rings.

TT'sRevenge · 2025-10-06T07:41:09-0400

Have a look here:

https://www.ttforum.co.uk/threads/mk2-tt-wheel-wheel-spacer-and-tire-fitment-compendium.2041179/

HELP! Audi TT 2.0 Alloys

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