Cone wrench size for Ultegra front hubs



Slider77

New Member
May 19, 2004
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Do newer Ultegra front hubs take 13mm cone wrench for both the locknut and cone? My 13mm fits the locknut fine, but seems to have a fair amount of play on the flats of the cones themselves. It will work, but almost feels like it could almost use a 12 or something. Just wanted to double-check.
 
Slider77 said:
Do newer Ultegra front hubs take 13mm cone wrench for both the locknut and cone? My 13mm fits the locknut fine, but seems to have a fair amount of play on the flats of the cones themselves. It will work, but almost feels like it could almost use a 12 or something. Just wanted to double-check.

Did you try measuring it? :)
 
Slider77 said:
Do newer Ultegra front hubs take 13mm cone wrench for both the locknut and cone? My 13mm fits the locknut fine, but seems to have a fair amount of play on the flats of the cones themselves. It will work, but almost feels like it could almost use a 12 or something. Just wanted to double-check.

They are 13 mm, but often undersized by ~0.15 mm.
If your cone wrench is worn it will feel a little sloppy, but 12 mm wn't come close to fitting unless it is very worn and ready to be recycled.
 
daveornee said:
They are 13 mm, but often undersized by ~0.15 mm.
If your cone wrench is worn it will feel a little sloppy, but 12 mm wn't come close to fitting unless it is very worn and ready to be recycled.

That's good to know, I had been wondering about the same thing. Anyone have advice on what is a good routine schedule for overhauling (cleaning/repacking grease) on these types of hubs. I know riding conditions will vary but are we talking like 2000, 5000, 10000 miles? Thanks.