Hey Brett...Velocity rollbar "fittings"

[Blown353]

Tom, you just saved me a lot of typing and the inevitable coming to my own defense after I was ready to post nearly exactly what you just did.

And I agree 100%... you're probably in for some fun 3 days from now.

At least they have disclaimers on their website and are not selling this as a bolt-in "roll" cage or item specifically intended for occupant safety. It remains to be seen how many consumers will either heed and/or overlook that disclaimer... it's a mighty important "one-liner" and I'm confident Bret & Co. will receive at least one irate call from an ill-informed customer who is upset his "roll cage" didn't pass tech inspection at the track.

At least I don't see shoulder harness hardpoints or a harness crossbar on the pictures on their website... things could get very interesting in the liability department in that case; I'm guessing the absence of a harness bar is not an accident.

[MarkM66]

Originally Posted by Blown353

At least I don't see shoulder harness hardpoints or a harness crossbar on it... things could get very interesting in the liability department in that case; I'm guessing the absence of a harness bar is not an accident.

I wonder what the shoulder harnesses are tied to.

[wiedemab]

Originally Posted by MarkM66

I wonder what the shoulder harnesses are tied to.

They are attached to a bar that is just below the clamp for the door bars.

Is that low? I thought they were supposed to run straight back off the shoulders to avoid spine compression.

I know others know more about this than me, but I think I have read that somewhere. I guess you could move the bar up.

[Blown353]

Originally Posted by wiedemab

They are attached to a bar that is just below the clamp for the door bars.

In the picture in the original post, that appears to be the case... but I didn't see any mention of harness attachments in the description on the webpage. However, in the webpage picture there appears to be harness tabs on the crossbar that is pushed all the way down near where the door bars clamp on.

Harness mounting specs vary by manufacturer, but usually the manufacturers want them anchored level (+/- a certain tolerance) with the harness passthrough provisions in the seatback, and I believe some sanctioning bodies specify their own requirements but I would hope they follow the testing and requirements set forth from the manufacturer. Some manufacturers such as Schroth have versions specifically for street cars that tie into the rear seat lap belt hardpoints (and have built in retractors), but using 4-point belts on a vehicle without rollover protection is another safety matter as well.

Here's a tech sheet regarding shoulder harness angle; they specify -5 to +30 degrees from the seat passthroughs for maximum effectiveness and to avoid spinal compression injury.

http://www.vickracing.us/technotes/SFI_Harness.pdf

[rwhite692]

Re the harness bar, I noticed this as well. On the webpage, the bar is shown mounted low (as low as it can go on the roll bar tubes) which, as previously stated, isn't correct. However at Sema, on both the display and in Brett's car, the harness bar is up near shoulder height.

[deuce_454]

so what was the word?? will the clamps be offered for sale without a cage, or wont they??? also what is the dimension of the stainless tubing??