What wheels fit 10th Gen SI's?

[Fitment Industries]

A lot of people when buying their car might to modify it and make it a reflection of themselves. What's an easier thing to do then to give it some new shoes! Following along with the information here we'll make it easy to find most of the standard sized wheels and tires that will fit your Si without compromising the daily drivability of the car.

Firstly we'd like to discuss the stock (from the factory) sizes. The OEM Si wheels are 18x8 +50, and standard have 235/40/18 tires wrapped around them. So what does that mean? It means the OEM wheels are 18 inches tall, 8 inches wide, with a Positive offset of +50 which brings the face of the wheel out towards the exterior of the car. This results in the face of Si wheels looking flat when looking from the front or the rear of the car. (As opposed to a concave look where the face of the wheel sits inside towards the center of the car and the spokes are angled inward) The tires are 235 which means 235mm wide, 40 is the sidewall aspect ratio, (meaning in this case the sidewall is 40% as tall as the tire is wide) and the 18 meaning the tire is meant to be mounted on an 18 inch diameter wheel!

Now that that's understood, lets get into the fun part of actually finding some aftermarket wheels that fit within the stock body of the Si Chassis. So, what are the common wheels and sizes that people run? From our gallery we have multiple Si's all running 18x8.5 +35 wheels, with 235/40/18 tires. None of which have any problem Here's what that looks like!

pdxjose_'s 2020 Si
Aodhan Ds07 18x8.5 +35
Goodyear All Season 235/40/18
Lowered on D2 Coilovers

2018 Civic Si
Avid1 AV20 18x8.5 +33
BFGoodrich All Season 245/40/18
Manzo Lowering Springs

Now How about a little bit of a wider wheel set up?

Icy.si's 2019 Civic Si
Rays Engineering 57xtreme Gramlights 18x9.5 +40
Firestone Firehawk Indy 500 235/40/r18
D2 Racing Coilovers

These are just a small selection of the 100's of Civics in our gallery, check it out for yourself here and see what kind of wheel fits with your style! If you have any questions about anything drop a post here or shoot us a private message so we can get something worked out for you!

Thanks for your time and good luck on your builds!
-The Fitment Industries Team