Schroth - Street Legal 4pt Harness

Has anyone used or heard of this company / product?

https://www.schrothracing.com/products/tuning

Scroth Racing - they make a line of street legal DOT approved racing harnesses.

The Quick Fit / Quick Fit Pro
https://www.schrothracing.com/products/quickfit#3366

Buckles into oem seat belt latches as well as bolting into oem locations (alongside oem belts). Can be removed with only 2 small tails left in the car on the floor.

Seems awesome, only they list a select few BMW and Dodges as being the only vehicle they fit?
From what I can tell online, why shouldnt they be universal and fit a double cab Tacoma?

Rallye 4 ASM
https://www.schrothracing.com/products/rallye-belts#1575

Similar to the regular Quick Fit, but does not detach and remove from the vehicle. Still bolts into all oem belt locations alongside oem belts.

This one is cheaper too, but Id rather pay the extra $80 to be able to revoma almost all the belt from the truck when not in use (on-road vs. off-road).


I tried emailing the company for answers, and have heard no responce.

I am interested in these for offroad use, to keep me planted in my seat when going fast through whoops, ruts, etc in the desert. Also to note, I do not have a roll cage, hence the reason I'm looking at Schroths products.

Ps. Figured I'd put this in the LT section, as LT folk may be more inclined to use this sort of product over more casual drivers.

 

Right off the bat I see three problems, my opinion is I'm surprised these have a DOT approval (I didn't validate all I see is their claim):
- The same reason I would not run just a harness bar (no cage) applies to these. AKA being crushed in a rollover with no way to get out of the way
- Belts stretch quite a bit so tripling the length of the belt in a sense triples the amount of stretch (i'm not a scientist), which scares me as to what your body could stretch and run in to during an accident
- lastly the angle of those belts appears to be in such a way that would pull down on your spine compressing it in an a frontal accident. A big no no in the traditional mounting "rules" of belts.

My opinion remains, cage or no harnesses.

 

I did see this in there info:

AUTOCONTROL
The most technically advanced aftermarket street-legal restraint available. Features an inertia reel that locks just like your factory restraint so you can lean forward when you're not driving.​

One of the most annoying things about harnesses is getting in and out, even worse when you have passengers as it usually ends up in a circus trying to get them in and making sure they are tight and having to stop and redo it........ If they came out with a 5-point style that could retract like a factory belt, that would be cool. Assuming of course it was safe. Then again how do you make it tight when you need it to be tight (in the rough) and then loosen when you want to lean to get something? hmmm

 

• I definitely see your point, and generally think that harnesses without cages are not the best idea, for exactly the reasons you stated.
However, wouldn’t still using oem seats, with these belts, still allow the chair to break backwards and fold flat like intended in the event of a roll over?

I believe most of the NO NO when it comes to putting racing stuff in non caged cars, is more about a fixed-back seat. Because a fixed back wouldn’t allow the natural path to be taken if the cab collapsed.

• I watched a couple of their videos, which included crash testing. The straps don't seem to stretch much & their anti-submarine folds on the inner shoulder made the harness act like a regular belt in the event of a collision where the air bag goes off.

• Belt angle is an area where I’m a bit concerned as well. I believe that up to 25°below flat is acceptable. With these belts, that angle would probably change depending on the vehicle. Only way for me to measure may be to buy and find out.

Clicking on the link on their site gives nothing, maybe a future product?
I’d even be happy if I could lock the driver side belt in like you can do with the other 4 seats by pulling them all the way out.

I’d probably be only getting one for myself, unless I was super happy with their performance.

Thanks for your insight and thoughts! Definitely things I have thought about as well.

 

If the roof is caving in on you, it would need to push through your head/neck/back in order to break the chair, no? ... Also the few wrecks I can think of off the top of my head have shown the roof caves in to about shoulder height on the seats themselves, not a good sample set, but worth mentioning.

 

I am not to sure of when a fixed back chair would break in relation to how much to roof has caved. I've been in a few roll overs, but the roof has not caved at all, or minimally, in all three.

I may just pull the plug, see if they even fit in the double cab Tacomas. If they do, I'll use the harness sparingly - if not, I'll try to sell or get a refund !

Thanks for pointing out some good points.