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Old Yesterday, 06:05 PM   #1
Scooby Newbie
Member#: 479682
Join Date: Dec 2017
Default 2018 STI - Wheel choices for dirt

Well, in my quest to make my 2018 STI as capable on dirt as it is on tarmac, I’ve hit a snag, and I need some external opinions. The ultimate goal is to be able to throw on my stock 19” wheels with a summer tire for track days, and swap to a winter/offroad wheel setup for adventures.

I’m essentially staring down three options and I’m hoping somebody with some more experience and technical knowhow can provide advice/cautionary tales. I’m deciding between:

(1) Go with the recommended minimum 18” wheels. Pros: Cheap and easy. Cons: Minimal extra sidewall. Tire thickness will still be primary limiting factor for capability in dirt/rocks.

(2) Go with a 17” wheel that fits. Pros: 1” thicker tire. Starting to find a happy medium between wheel and tire size. Cons: ZERO clearance between wheel and caliper. Tiny piece of gravel could destroy both.

(3) Do it the real way and downgrade to gravel brakes and go with a 15” wheel. Pros: Way better offroad performance. Wider selection of A/T tires available. Cons: Sacrificing tarmac performance. Way more expensive.

The *ideal* option, I think would be #2: Choose a 17” wheel (like the Methods) that can clear the 2018 Brembos, go with 17” and find a happy medium between shiny yellow brakes and off-road capability. But is this a really stupid idea? Would the minimal caliper/wheel clearance just be a ticking time bomb for a small rock getting in there and shredding my wheel?

I was hoping for some outside advice! What have you done to yours? How do you like it?
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