jjfix

Hi All,
I was servicing my Ultegra 6800 Rear wheel and found a flat ring on the drive side round nut (there's groove for it) cracked in half and fell out. After that, when I used my two 5mm allen keys to remove the round nut on the non-drive side, the drive side loosened instead. So I wasn't able to pull the axle out from the drive side. Now I'm stuck with an axle I can't remove correctly to service the bearings.
I'm tempted to grab onto the threads of the drive side so I can remove the round nut on the non-drive side but that'll probably cause another problem and I'd still be missing the broken flat ring in groove. I need advice or maybe I bite the bullet and take to the LBS.
Thanks in advance for any help. JF

jjfix

Okay, so I'm replying to my own message.
So, I noticed on the drive side i was able to stick a small flat head screwdriver and spin the cone. I backed it out some and the axle came loose. Next thing I know I'm cleaning and re-greasing the hub from the opposite side. Yes, the wrong side.
I guess i will see if I can get another axle assembly for a WH 6800 and I'm guessing it will come with the small retaining ring I'm missing. I couldn't find the specific axle for WH 6800 online so if someone has a good link, please reply. Thanks.

Bill Kapaun

Loks like you have to buy the entire "guts".
https://www.sjscycles.co.uk/hub-spar...98030/?geoc=US

Eggman84

You can find an expoded diagram of the WH-6800 hub at https://si.shimano.com/pdfs/ev/EV-WH-6800-R-3611B.pdf.

jjfix

Thanks Bill - perfect. I'll make the order.

jjfix

Thanks Karl. I've printed and will keep for referencing. It was time consuming to find the right piece by piece naming.