I have Aeromach 4 inch risers but that's not enough pull back. I can order 6" risers but will have to change some expensive brake lines. I don't mind doing that. However, Aeromach has some drag handle bars that don't require new lines. This would be less expensive if they would give me the equal pull back of 6" risers WITH the stock RETRO handle bars. Seems like I'd be working against the laws of physics, but someone told me the Aeromach drag bars with Aeromach 6" risers would do what I just stated. Anybody out there with this setup?