Hi there, I had a couple questions about roll bars for convertibles, hopefully this is the appropriate place to post.

I'm interested in participating in OTA this year for the first time and I'm looking at getting my car ready to meet safety/technical. It's an NB miata, so I know I'm going to need some sort of roll bar. Initially I was very close to getting a "hard dog M2" bar, but now I'm unsure if it meets the requirements. I'm partial to the bar since it's the most common and I'd pretty easily be able to get one locally for a good price.

In particular, from 1.3.4 iii):

Now most of the hard dog bars I see locally are the double diagonal like below, which I'm guessing outright don't meet the definition...

However, looking at the single diagonal it still doesn't seem to fit the definition, as it's not quite at the top opposite corner:

So my first question is, does this seem (at least design-wise) to fit the requirements? And if not, as a follow up question, what do the other guys racing miatas tend to use? I know I'm not the first guy to show up to OTA with one so hopefully somebody could chime in with that.

Thanks!

I'm interested in participating in OTA this year for the first time and I'm looking at getting my car ready to meet safety/technical. It's an NB miata, so I know I'm going to need some sort of roll bar. Initially I was very close to getting a "hard dog M2" bar, but now I'm unsure if it meets the requirements. I'm partial to the bar since it's the most common and I'd pretty easily be able to get one locally for a good price.

In particular, from 1.3.4 iii):

*"A straight diagonal brace running from one main hoop upper corner (typically along the horizontal portion, just inboard of the upper corner radius) to the opposite side vertical tube as close as feasible to the floor mounting plate."*Now most of the hard dog bars I see locally are the double diagonal like below, which I'm guessing outright don't meet the definition...

However, looking at the single diagonal it still doesn't seem to fit the definition, as it's not quite at the top opposite corner:

So my first question is, does this seem (at least design-wise) to fit the requirements? And if not, as a follow up question, what do the other guys racing miatas tend to use? I know I'm not the first guy to show up to OTA with one so hopefully somebody could chime in with that.

Thanks!

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