Repacing a hub and correct axel length

smackthewonderclown said:

I replaced the hub body on a powertap up with a better modle which was
unfortunatly taller. Of course this meant respacing the hub and
redishing. I have everything lined up and working well but I also have
less axle showing on either side. I am wondering what the minimum safe
amount or correct amount of axle I need showing is. It seems to sit
well enough in the dropouts butt am I missing something?

Thanks
Emory

5.5 mm per side is Shimano's standard.
Minium I would go with is 3 mm per side.
For the kind of money involved with Powertap, I would ask them.

Quoted message said:

5.5 mm per side is Shimano's standard.
Minium I would go with is 3 mm per side.
For the kind of money involved with Powertap, I would ask them.

--
daveornee

I have over 4 so I think Im goodPT response would be that since I
choseto use something other thanthe hub body the spec their wheels
with Im on my own.

smackthewonderclown said:

I replaced the hub body on a powertap up with a better modle which was
unfortunatly taller. Of course this meant respacing the hub and
redishing. I have everything lined up and working well but I also have
less axle showing on either side. I am wondering what the minimum safe
amount or correct amount of axle I need showing is. It seems to sit
well enough in the dropouts butt am I missing something?

Thanks
Emory

Sheldon says 0 or negative is fine.

--
Phil

smackthewonderclown said:

I replaced the hub body on a powertap up with a better modle which was
unfortunatly taller. Of course this meant respacing the hub and
redishing. I have everything lined up and working well but I also have
less axle showing on either side. I am wondering what the minimum safe
amount or correct amount of axle I need showing is. It seems to sit
well enough in the dropouts butt am I missing something?

You need enough to center the wheel in the frame but not protrude beyond
the face of the frame end. The wheel is supported on the locknut and the
skewer faces, not the axle.

If the axle is longish, you may not have room for the vestigal springs.
If so. toss them. And lube the cam of your quick release skewer today!

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

Quoted message said:

Quoted message said:

5.5 mm per side is Shimano's standard.
Minium I would go with is 3 mm per side.
For the kind of money involved with Powertap, I would ask them.

smackthewonderclown said:

I have over 4 so I think Im goodPT response would be that since I
choseto use something other thanthe hub body the spec their wheels
with Im on my own.

Yes 4mm is plenty.
What else did you intend to say???

--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971

On Jan 30, 7:10 am, "smackthewonderclown" <[email hidden]>

Quoted message said:

I replaced the hub body on a powertap up with a better modle which was
unfortunatly taller. Of course this meant respacing the hub and
redishing. I have everything lined up and working well but I also have
less axle showing on either side. I am wondering what the minimum safe
amount or correct amount of axle I need showing is. It seems to sit
well enough in the dropouts butt am I missing something?

Thanks
Emory

I did the same thing on my PT, with the same result. As others have
said, protruding axle can be small (even zero or negative).

If the new width is more than a washer's thickness, consider taking
one out. I did, and no problems.