Help fitting a rear wheel on a steel frame

[ckamp]

Hello,

I have a 9 speed rear wheel and my steel frame seems to be a bit narrower than the hub with cassette. Do I just 'pull apart' the seat/chain stays and fit it in, or do I need to get a new hub? Thanks, let me know if I am unclear with my question.

[spacemen3]

Chances are your rear spacing is 126mm, so you should be able to spread it to fit a 130mm hub without any issues.

[ckamp]

Thats what I was thinking but I was just worried about the structure of the frame. Thanks for the reply :)

[nahtnoj]

Current road hubs are 130 mm spacing. Mountain hubs are 135 mm. Are you sure its not a mountain hub? Sometimes cyclocross or touring wheels use mountain hubs.

[Kevan]

be careful with "just spreading" you could pop your brake bridge and sometimes the squeeze on the hub will cause the chain to rub the frame if things are too tight.

[ckamp]

Current road hubs are 130 mm spacing. Mountain hubs are 135 mm. Are you sure its not a mountain hub? Sometimes cyclocross or touring wheels use mountain hubs.


No its all campagnolo. I think this is just an issue of putting a more modern hub with 9 speeds on an older frame.

Ill have to measure it at home but the spacing on my frame is likely 120mm or 126mm. So my new question would be asking if its safe to install a 130mm on the frame with the 120mm or 126mm spacing even if there is no chain rub.

[jvp]

I would say if it's 126 then no problem, it's only a 2mm spread per side, and it will return to 126 when you remove the wheel. If you cold set it to 130 however, you will have to spread it to more than 130 to get it to stay at 130, which may not be advisable.

[thwart]

From the late, lamented Sheldon Brown:

http://www.sheldonbrown.com/frame-spacing.html

[ckamp]

I dont know why I didnt check there first :rolleyes:

Thanks all for the replies.