Bicycle Mechanics - Shimano M770 Rear Hub

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View Full Version : Shimano M770 Rear Hub


bikemedic
10-24-10, 09:44 AM
I need to replace the cones in my rear hub. The schematic shown on the Shimano website is a little confusing. It shows the Axle AND gear-side cone as being one piece. If that is the case it seems I would need to order the Axle/cone and non-gearside cone. Can anyone confirm this? Thanks in advance.


harshbarj
10-24-10, 12:43 PM
If it is this (hb-m770)
http://techdocs.shimano.com/media/techdocs/content/cycle/SI/Deore-XT/SI_3CZ0A_002/SI_3CZ0A_002_EN_v1_m56577569830621150.PDF
Then it looks like the axle and cone are separate.

Jeff Wills
10-24-10, 02:52 PM
If it is this (hb-m770)
http://techdocs.shimano.com/media/techdocs/content/cycle/SI/Deore-XT/SI_3CZ0A_002/SI_3CZ0A_002_EN_v1_m56577569830621150.PDF
Then it looks like the axle and cone are separate.

Better schematic:
http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/FH/EV-FH-M770-2699A_v1_m56577569830646670.pdf
Yeah, it's not clear whether the right-side cone is separate from the axle.


reptilezs
10-24-10, 03:35 PM
uhh did you try taking apart your current cone/axle??

davidad
10-24-10, 04:01 PM
Have you opened up the hub?

bikemedic
10-24-10, 04:38 PM
Have you opened up the hub?

I haven't opened the hub. I will probably be doing this soon though.

reptilezs
10-24-10, 05:56 PM
I haven't opened the hub. I will probably be doing this soon though.

how do you know the cones need replacing then?