Mazda designed the chassis under the Fiat 124 for LIGHT weight wheels like we offer here. Lighter wheels equal best handling and best ride quality. Stock tire sizes are 195/50/16 on 16x6.5 and 205/45/17 on 17x7... which means the stock tire diameters range from 23.6 to 24.3 inch. Within that range there are interesting upgrade sizes to consider. TPMS operates off ABS system with the ND, that means NO sensors in the wheels to worry about when changing to another wheel. We are informed that stock 17x7 Abarth 124 wheels are 21 pounds, far too heavy in our view. Ride and handling are both improved with a much lighter wheel.
195/50/16 tire size fits within the fenders on wheels down to about 35mm offset. For customers seeking more performance in 16 inch sizes consider 205/50/16 up through 225/45 on 16x7 and 16x8 wheels with higher offset. See product description for 16x8 Enkei RPF1 for pictures of this popular choice on our own Fiat 124.
With stock size 205/45/17 tires you can run offsets as low as 40mm and still fit in factory fenders with 1 degree negative camber or better, we have run 38mm with more camber. An easy upgrade in 17 inch is 215/45/17 and that fits with our wheel choices that are 42mm to 50mm offsets.
MAX TIRE SIZE that will fit in stock fenders without a fender roll is 235/40/17 using our Advanti Racing, Konig HyperGram, and 6UL Racing Wheels in either 17x8 or 17x9, as long as you have about 1.5 degrees of negative camber or more. If the car is lowered and/or raced, this size will typically rub the plastic fender liners inside the wheel well at full steering lock and/or over big bumps/dips in turns depending on amount of lowering and amount of negative camber (same story with taller 225/45/17). This is all even more true for 245/40/17, which can be used by SCCA STR competitors with a fender roll. Picture here is our own Fiat 124 with our 17x7 Bronze 6UL wheels and 255/35 tires, and lowered with KONI SPORT shocks and our Race Spec Springs. .
Please note that most 15 inch wheels do NOT clear the big brake calipers, even on cars without the Brembo upgrade, and the effective offset to make 15 inch clear the brakes will usually put the tire outside the fender lip (and the fender arch on ND is bigger than prior miatas, doesn't look right with 15 inch anyway). Thus, we do NOT suggest 15 inch choices on the Fiat 124.
Torque lugs to 85 ft/lbs and check that torque again every week for first month of owning new wheels or lugs.
Shop our Fiat 124 2017-2018 Wheels catalog by clicking below:
Brian, just wanted tyou to know you've got another highly satisfied customer. I got my RoadstersportIII muffler on Friday, installed it in 20 minutes, looks and sounds awesome. I like the baffles out!! My new tires/wheels came Saturday, just got them on and test drove them. Fantastic!! And how they look--- just what I was after. I will add the front "mud flap" that looks like the rear one, for some stone protection, but the offset was just what I was working for. I'd love to send you some pictures for your photo gallery. If you'll send an adress via e-mail, I'll send some high-res photos showing clearances and side profiles, etc. The graphite spokes and polished rims really set well on my black car.
Thanks again, me and my wallet will be back!!
After reading many other positive reviews on both the GWR and Miata forums I finally decided to buy this product. My main concern for many months was whether or not I was up to the task of installing the header. But with the excellent instructions on Brian's forum as well as several Miata forum threads it turned out easier than I expected.
After receiving notice that the header would arrive on a Friday afternoon, I began the disassembly process. After about 3 hours I had the stock manifold out. Later that afternoon the new catted header arrived right on schedule. And it is a thing of beauty. I opted for the stainless version. Installation on Saturday morning took another 3 hours, although I could have shaved some time off of that but I was actually enjoying the process of double checking torque values and cleaning up my engine compartment. I already have the GWR catted midpipe, so that connection was a snap.
I put everything back together, reconnected my battery, and went for a drive. NO CODES! Nice throaty sound with my RSII muffler, and a significant boost in power and low/mid torque. Another happy camper here. I since have added a M-E tune and I feel I have realized all of the gains that Brian has achieved on his 2012 project Miata. I've put several hundred miles on my Miata since the install with zero problems. This is the car that Mazda should have built all along. Thanks Brian.