Hey HT,

Please confirm if you know...all non-ITR center bore is 56.1 correct? (Need 3mm spacers, want to make sure I'm purchasing a wheel spacer w/the correct center bore)

Tx

 

64.1mm

 

jeez, good lookin out Blue. I swear everything I've read (google search returns) seem to come up as 56.1.

Thanks much!

 

64.1mm is the center bore for Type R Integras.

ALL non-R Integras 1986-2001 have a hub bore size of 56.1mm.

 

+1....thanks.

Quick question...maybe this would have been better to ask?

I'd like to get spacers (obviously,) would it be better to get one w/the specific hub bore size or would I be okay getting one of those Kics "universal" 4*100 spacers?

Any sugguestion as to which route to take, in this particular case I should have no issues using a "universal" wheel spacer right?

 

You want one that is hubcentric to your actual hub bore diameter. Otherwise it's like using aftermarket wheels without hubcentric wheels. Sure the lug nuts/studs will get the wheel centered, but sometimes it can be a bit off and cause vibration. I had vibration problems with my 16x7 Rota wheels without hubcentric rings. Got a set of rings made for those wheels and my car, and BAM no more vibration.

It's always best to use spacers made for your hub bore size, such as the Trak+ spacers from H&R.

 

This is incorrect. ITRs are 70mm.

 

Integra Rotor from Brembo

 

lulz you posted 64mm in this thread, now you're saying that's wrong? https://honda-tech.com/forums/acura-integra-type-r-8/hub-bore-diameter-2836365/

Search the entire internet, eBay, etc and you'll see the ITR hub bore size is 64.1, while non-R Integras are 56.1 mm.

 

Yes, this is before I did my research when I went with 300mm brakes on my R. Unless they measure the hub diameter some other way, different sources Centric Parts and Brembo both say the hub diameter is 64.1mm for non-Rs and 70.1mm for Rs.

I too Googled the information and posted in the previous thread without doing much research. But anybody can spread false information and it spreads like wildfire.

 

H&R lists the hub bore size for ITR's as 64.1mm for their TRAK+ spacers.

And I can tell you for a FACT that non-R's are 56.1mm. I ordered 56.1mm hubcentric rings for my Rota wheels and they fit exactly.

Hub bore diameter is the diameter of the outer lip of the hub that sticks through the brake rotor, and also the diameter of the matching hole on the center of the back side of the wheels. The measurements of the wheel bearings have nothing to do with the hub bore diameter measurement.

 

Yes, I did not mention anything about wheel bearings. As you can see in the Brembo diagram that the hole for the hub in the rotor is 64.1mm. Do these rotor companies overstate the hub diameter on purpose?

 

I can check my extra rotors I have in the garage when I get home, but from what I recall the center bore of the brake rotor is a bit larger than the actual hub lip that sticks out through the rotor. The bore diameter for OEM non-R wheels is 56.1mm, and for ITR wheels 64.1mm.

 

Just checked my OEM wheels and brakes. The hole in the center of my GS-R brake rotors is indeed 64.1mm exactly. However the portion of the hub that sticks out and fits inside the center bore on the OEM wheels is 56.1mm.

So therefore it makes sense that the ITR does indeed have a 64.1mm center bore while the center hole on ITR brake rotors is somewhere around 70mm.