Shimano ultegra rear hub 6500 32h (no QR), was mounted onto a wheel before... but the wheel met a pothole and was no more. Super clean and I would guess <200 miles on it when I tore the wheel down. Asking $45 shipped in the US. Will consider a non-cervelo hydrotail H.5 or speedplay zero pedals as part of a trade. Email me at Yanceya@gmail.com.