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Will a 7 speed cassette fit a 126mm dropout?

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Will a 7 speed cassette fit a 126mm dropout?

Old 09-22-08, 09:11 PM
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Will a 7 speed cassette fit a 126mm dropout?

I'm rebuilding the drivetrain on my old Bianchi, and it's got a 126mm rear dropout. I've got my eye on a set of Neuvation R28 SLs, but they come with a Shimano 8, 9, 10 speed compatible freehub, and I'm rather sure that's too big for a 126mm dropout.

Is it possible to get this wheelset and put on a NOS 7 speed freehub and cassette, or do I have to stick with a 6 speed system? My ultimate goal is to run 14 speeds with a right side brifter and left side downtube shifter.
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Old 09-23-08, 02:02 AM
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I'm running an 8 speed on my 126MM Rock Hopper,
A bit of spacer removal & a bit of re-dishing.
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Old 09-23-08, 02:42 AM
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It should spread to 130mm without a problem.
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Old 09-23-08, 03:04 AM
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Why buy a prebuilt rear wheel if you're just going to unlace it?

You might be able to transplant a 7sp freehub body onto the hub (most Shimano hubs can do this I think, but I don't know about the hubs neuvation is using) but then you'd still have to re-space and re-dish it. Respacing the rear dropouts or getting a custom wheel built seem like better options.
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Old 09-23-08, 06:41 AM
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Using Shimano's hubs you can transplant a 7-speed freehub body to an 8/9/10-speed wheel but I don't know about the hubs on Neuvation wheels so it may not be straight forward. In any event you will have to respace and redish the wheel.

As noted, you can install a 130 mm hub in any 126 mm frame with a relatively minor struggle each time or have the frame cold set (steel is easy, Ti is difficult, Al and Carbon are no-no's) to 130 mm to make it easier. It's definitely the better way to go.

If you really want to run a 7-speed cassette, they can be installed on an 8/9/10-speed freehub body using a 4.5 mm spacer available from some LBS's or The Third Hand. Look Here:

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