Have questions or want to discuss cycling? Join Now or Sign In to participate in the BikeRide community.

Best Black Friday E-Bike Deals 2024 | Up to $1,700 in Savings

New: Take Part in the November Giveaway: Starts November 18th


Freehub replacement
#1
Thanks for the great how to vids.<br />
I have a '98 Giant XTC mountain bike<br />
Shimano Deore XT 9 speed cassette<br />
I believe XTM770 freehub<br />
Quick release axle w/ Sealed bearings<br />
Mavic 6106 rims w/ X223 4 bolt discs<br />
I can't get the freehub off?<br />
Please tell me I'm missing something and I don't have to replace the whole axle assembly because the freehub is seized.<br />
The allen bolt inside the hub is 12mm and it won't turn in either direction.<br />
Is there a wrench I don't have to spin off the free hub somehow.<br />
HELP!

  Reply
#2
http://techdocs.shimano.com/media/techdocs/content/cycle/SI/Deore-XT/SI_3CZ0A_002/SI_3CZ0A_002_EN_v1_m56577569830621150.PDF
This Shimano Instruction doc' says the allen key is 14mm?<br />
But is the hub a 770?
Freehub exploded veiw:-<br />
http://techdocs.shimano.com/media/techdocs/content/cycle/EV/bikecomponents/FH/EV-FH-M770-2699A_v1_m56577569830646670.pdf

Ride hard or ride home alone!
  Reply
#3
Could be 14mm, since I don't have an allen key that fits I am using a star drive tool that is long enough for the shaft to reach in there. Whatever it is it fits. I am ID ing the hub based on what comes up for my Shimano drive train. If you know something I don't, please enlighten me.
Thanks for the links, they help some. I would say I have an 775 hub based on those details. Curious, that I have a sealed bearings as apposed to loose ball bearings in a race. Is this unusual? All the details on these links show ball bearings as do most of the tutorials on hub work.

  Reply
#4
Sorry Gadget but I know nothing extra ontop of what's in the Shimano Doc's.<br />
The retaining bolt will be normal thread.. ie- Anti-clockwise to undo.<br />
But it will be very tight!
A possible alternative is to put the tool in a vice and turn the wheel to undo it.<br />
But be very careful not to damage the wheel / spokes.<br />
Consider buying / borrowing the correct allen key tool as well.
Maybe a trip to a good bike shop is in order.

Ride hard or ride home alone!
  Reply


Possibly Related Threads...
Thread
Author
Replies
Views
Last Post
 
11,934
07-31-2015, 08:34 PM
Last Post: Painkiller
 
16,460
01-27-2015, 03:36 PM
Last Post: nfmisso
 
20,993
05-23-2013, 11:21 AM
Last Post: mmontero
 
10,357
01-26-2013, 01:29 PM
Last Post: 1FJEF
 
22,750
09-14-2009, 04:12 AM
Last Post: Joe_W

Forum Jump:

[-]
10 Latest Posts
need e-trike advice (wife knee surgery)
Yesterday 07:59 PM
Moving in Style: Beyond Regular Transpor...
11-22-2024 07:43 AM
Second wheelset for ebike.
11-22-2024 01:41 AM
Tire Sizing (Or How to Buy A Tire)
11-21-2024 12:36 PM
The Roaming Radrunner Vlog 1 Why ride ...
11-21-2024 09:17 AM
Recording Bike Rides
11-20-2024 01:37 AM
Ketone Ester $$$
11-19-2024 01:04 AM
Trek domane tyre
11-18-2024 01:58 PM
Old fossil buys Ebike
11-17-2024 06:39 AM
Bike bus
11-17-2024 12:14 AM

[-]
Join BikeRide on Strava
Feel free to join if you are on Strava: www.strava.com/clubs/bikeridecom

[-]
Top 5 Posters This Month
no avatar 1. Jesper
20 posts
no avatar 2. GirishH
14 posts
no avatar 3. enkei
11 posts
no avatar 4. ReapThaWhirlwind
11 posts
no avatar 5. Talha
10 posts