I am not sponsored by TorHans, the VR was the fastest option I tested on the frame, although I drilled my own holes in the bracket so it sits lower than it would otherwise. In fairness, I did not drill out the Xlab that I tested as it was slower in the baseline position than the VR in the baseline position so I had already decided that I was going with that option (I wanted to be able to return the items I wasn’t going to use!). The VR was negative drag, so for 70.3s I race with the bottle on the frame even though I typically don’t fill it. The angle on the bottle I have behind my seat was the biggest savings I found. Once Jim helped me get the angle correct, it was a very nice drop in cda. The AeroZ was the only BTA set up that I tested that was net zero, everything else I tested at the time was positive drag for BTA options.
I have changed my head/hand position significantly over the last year and am going over to the Boardman center in the UK to test out again this January. Looking forward to seeing where I can make fast faster as well. FWIW, the average CdA for the all but one of the races I did this year were under .23 with one of them being under .22.
Thanks a lot for your reply. I really appreciate it. I will go for a TorHans VR.
Did you test the xlab on seat tube and down tube? do you know what position which is best? I have a race on Sunday and not time to get a new solution by then.
Will be very exiting to see your results in the tunnel.
BTW, congrats on you Hawaii slot 