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Old 01-15-2015, 05:18 PM   #1
chase1873
Scooby Newbie
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Member#: 382339
Join Date: Feb 2014
Chapter/Region: NESIC
Location: MH/NH boarder
Vehicle:
2012 WRX 286/314
Brembo Brakes & sway bars

Default Ichiba hub centric wheel spacer and extended lug review

I recently purchased Brembo calipers for my 2012 wrx and consequently needed to space my wheels. I was under the impression that the stock subaru wrx studs were 3mm longer than the minimum recommenced length. Therefor any spacer over 3mm should be used with extended lugs in my eyes.

I did some fit checks with cheap universal spacers and determined I needed a 5mm spacer to clear my summer wheels and 10mm to clear my winter wheels.

After some eye ball engineering I decided anything over 5mm should be hub-centric/wheel-centric for proper fitment and balance.

So to run my winter wheels I needed a 10mm or larger hub-centric spacer and extended studs. Ichiba offers just that in their V1 kit part number SU-50915 and I was please to find a decent deal on a BNIB deal.

When the kit arrived I was happy with the machine work, but disappointed that the hub-centric ring and the spacer were two pieces that could fairly easily be separated. In addition, when I opened the box of 'extended studs' they looked alittle short, but I wouldn't know for sure until I removed a stock stud to compare.

So I removed and replaced the lugs on one hub (wasn't to hard; took about an hour) and got down to so good old measuring. First, the 15mm spacer was actually 12mm. Not a big deal to me, but if you were depending on those 3mm for your clearance it could be bad. Second, the 'extended' studs were >54mm in over all length making them roughly 5mm longer than the stock 49mm studs. I was concerned by this so I measured the knurl length and head length also, but they were very close to the same size as stock.

So in short, a 15mm hub-centric/wheel-centric kit with extended lugs is actually a two piece 12mm spacer, an hub-centric/wheel-centric inner ring and ~5mm extended studs. Therefore, these studs are not safe in my eyes as they are 4mm to short at a minimum.

(stock studs are +3mm - 12mm spacer + 5mm lug = 4mm short)

I would have liked to received extended lugs that were the thickness of the spacer longer than the stock studs.... but maybe I am just picky about wanting to be safe.

Anyways I purchase ARP studs and will be swapping out the Ichiba ones shortly.


If any information about the stock sizes and or specs are incorrect please correct me.











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