[trackbird]

I know there was some interest in these on the board, and we have a thread about it in one of the forums right now. So, if anyone is interested.

I just hung up with ACPT. If we can GP 5+ of these, they will be $200 off of the regular $795 and $40 freight (48 states of the US only). Meaning, $595 each (plus shipping).

The tech info is this:

Aluminum yokes.
800 ft lbs torque rating
3 1/4" OD
12,500 RPM critical speed

For an additional $100 you can have (and I know you guys will love this one).....

3 3/4 OD
2000 ft lbs torque rating
14,500 RPM critical speed


Anyone interested?

[trackbird]

I just hung up with the tech guys at ACPT. The info you seek is this.

The 3" version (3 1/4") broke the yoke ears off at 2500 ft lbs of actual applied torque (in a test fixture), they've never been able to break the actual shaft, the U-joint or yokes break before the carbon tube. It weights about 11 lbs

The 3 3/4 inch version handled 6000 ft lbs applied to the actual driveshaft and something (besides the shaft) broke in that case also. It weights about 13-14 lbs.

He said they set the limits based on the limits of the U-joints that fit these shafts. It's not so much a function of the actual shaft, but the attaching hardware. Meaning, if you're u-joints fit it, and you haven't broken them, you won't break it.

All better?

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