Does any one know if Powerway PHB-R13/PFH-R13 is compatible with Shimano Dura-ace 11 Speed System? What about Novatec A291SB/F482SB? Thanks for your time.
My inclination is to say no since neither company mentions compatibility with Shimano 11spd cassettes. The trend with hub manufacturers has been to announce a hubs compatibility with Shimano 11spd.
"That extra width means that you can’t use a Shimano 11-speed cassette on a 10-speed hub – the hub needs to be 11-speed specific. You will, though, be able to use a 10-speed cassette on an 11-speed hub as long as you use an extra spacer to take up the slack."
The freehub will have to be specific to the new 11-speed width standard (although you can shim and use the older 10-speed cassette stack on the new 11-speed freehub body. I would check with the seller/manufacturer to see if they are using the newer width hub.
IIRC, I 'think' there was a hub manufacturer going with a 132 MM over-locknut dimension as opposed to re-spacing the hub flanges...could be faulty memory bank too.