Hello
Does anyone has tried to put rims 15 "in Trigo? (
Trigo Wheels | Wheels For Your Cobra!)
I can not find the wheels 15" Backdraft.
Backdraft hubs come from BMW and are therefore 5x120 mm (4.725”).
The adapters are provided in Trigo to fit either the Ford 4.50” (5x114,3 mm)
either on the Chevy in 4.75” (5x120,65 mm).
Mounting on Chevy seems to be mounted on the BMW (0.65 mm (0.255”) difference in diameter).
Verification of the fixing of the adapter to the hub :
It fits perfectly on the hub.
No hard point on the studs due to the difference of 0,65 mm in diameter.
There's even a little game A centering ring may be necessary.
However it should be noted that this game is similar when mounting on the hub 17”.
The conical head nuts can center the wheel. It's the same with the adapter.
Measuring the offset inside / outside wheels relative to the bearing face:
This is important to make sure that future wheels are positioned correctly in the wing
(not too inside or too outside!).
So we will take as reference the wheel dimensions of 17” we will compare with the wheels 15” from Trigo (with the addition of the adapter - 1cm thick).
Rear Wheel:
Measures between the bearing face of the rim and the outer edge and inside thereof.
Measure 1: Between support surface and the inside edge (Backspace) = 14,5cm (5,71”)
Measure 2: Between support surface and rim outer side = 16cm (6,30”)
Front Wheel:
Measure 1: Between support surface and the inside edge (Backspace) = 11,2 cm (4,41”)
Measure 2: Between support surface and the outside edge = 11,5 cm (4,53”)
Trigo wheel dimensions 427 cobra-5 pins:
On the site of recovery Trigo coastal front and rear wheels:
Before rim width = 7” ½ = 7,5x2,54 = 19,05 cm
Backspace = 3,625” = 9,21 cm
Rear rim: width = 9” ½ = 9,5x2,54 = 24,13 cm
Backspace = 3,625” = 9,21 cm
Do not forget to add the thickness of the adapter = 1cm (0.965cm exactly!)
In summary :
The gap to within 6.6 mm on the front wheels and 0.8 mm on the rear wheels is widely acceptable aesthetic level.
Trigo wheels 15” seem to adapt to the Backdrafts.
What do you think?
Excuse for my english, i'm french..
Thierry (Backdraft 351 Ford Racing)
