Wheel sizes in ITR.

[spnkzss]

ITB and ITC
Any diameter from spec line increasing to a max of 15". Maximum width is 6".

Which I still don't understand why 7" can't be allowed. Might have to try and come up with some new and better letters to support this.

[Gary L]

Which I still don't understand why 7" can't be allowed. Might have to try and come up with some new and better letters to support this.

Here's my letter on the subject:

Dear Mr. CRB:

Leave the rim width in ITB/C the Hell alone.

Respectfully,

[spnkzss]

Here's my letter on the subject:

Dear Mr. CRB:

Leave the rim width in ITB/C the Hell alone.

Respectfully,

Is it only because you don't want to buy new rims or is there another reason? I ask cause I don't know.

[Xian]

Is it only because you don't want to buy new rims or is there another reason? I ask cause I don't know.

I'd also vote to leave it as is. No need to make all the B/C cars swap to wider wheels when everything is working just fine as is. That'd be some serious coin for most folks and what would it really accomplish?

[spnkzss]

I'd also vote to leave it as is. No need to make all the B/C cars swap to wider wheels when everything is working just fine as is. That'd be some serious coin for most folks and what would it really accomplish?

One thing which is minor is, one of the biggest complaints about moving an A car to B was having to buy new rims.

Added availability.

I haven't seen any real reason to keep 6" besides people thinking they have to buy new rims now to stay competitive. I know, IT doesn't change "just because" and I appreciate that, but for some reason this one has always boggled my mind.

[madrabbit15]

If we can upsize wheels, why is everyone afraid of the rule being interpreted to allow downsizing? To me that would make it much easier for competitors to configure the gearing they need. Is there really that much of an advantgage to downsize a wheel. If we can upsize, my thought is we should be able to downsize too. I am open if anyone has some logic to why we are afraid of that happening.

[spnkzss]

If we can upsize wheels, why is everyone afraid of the rule being interpreted to allow downsizing? To me that would make it much easier for competitors to configure the gearing they need. Is there really that much of an advantgage to downsize a wheel. If we can upsize, my thought is we should be able to downsize too. I am open if anyone has some logic to why we are afraid of that happening.

Unintended consequences. The Intent from my understanding was to allow the people that could only run 13 wheels to go up to 15 because 13s are becoming hard to find new. There may be lots of used 13s but wheels should be considered wear items and replaced ever so often.

[Gary L]

Is it only because you don't want to buy new rims or is there another reason? I ask cause I don't know.

That's certainly part of it... and if you think finding affordable 6" wheels for your car is difficult, try finding 7's for mine! But primarily, I just think it's silly to fix something that isn't really broken. About one New York minute after 7" wheels are approved for ITB/ITC, the guys in ITA/ITS would be screaming for 8's. It's a classic case of unecessary rules creep, and we've had more than enough of that over the years.