Leaving the tubes free spinning allows for easier attachment by person using the wheelchair. Notice the weld ring on the attachment tube, this accident created a nice stopping mark, keeping the tube from sliding to far into the attachment tube on the wheelchair.

Leaving the tubes free spinning allows for easier attachment by person using the wheelchair. Notice the weld ring on the attachment tube, this accident created a nice stopping mark, keeping the tube from sliding to far into the attachment tube on the wheelchair.

Leaving the tubes free spinning allows for easier attachment by person using the wheelchair. Notice the weld ring on the attachment tube, this accident created a nice stopping mark, keeping the tube from sliding to far into the attachment tube on the wheelchair.

Standard aluminum tubing, welded, creates rigid attachment between hand cycle and wheelchair
View shows attachment points, with hand cycle attached. Very important that they do not interfere with regular function of the chair. This is my full time wheelchair, with or without the hand cycle attached.