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Choosing Shimano 105 Freehub FH-R7000 Quick Release Spindle Length?

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Choosing Shimano 105 Freehub FH-R7000 Quick Release Spindle Length?

Old 09-25-18, 11:29 AM
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estasnyc
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Choosing Shimano 105 Freehub FH-R7000 Quick Release Spindle Length?

While looking at possibly buying a Shimano 11-speed freehub for a future wheel build I see that can get the FH-R7000 with a choice of two different quick-release spindle (not the hub axle) lengths. Either 163mm or 168mm.

Why might I want to choose one over the other? I don't recall ever having this kind of choice before.

Take a glance at http://si.shimano.com/pdfs/ev/EV-FH-R7000-4333.pdf

It appears that one could be substituted for the other without having to make any other changes to the freehub.
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Old 09-25-18, 09:54 PM
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I'd guess that the shorter is for bikes with steel (thinner) dropouts and the longer is for aluminum (thicker) dropouts.
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Old 09-27-18, 08:32 AM
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Your explanation actually makes sense. A Google search has turned up nothing about this. If not for your response, this thread would have gone down in complete silence. Both can be considered astounding these days.

I had been speculating if there may be something else involved such as the quick-release levers possibly being different with one being beefier than other. Maybe the lighter of the two could appeal to the weight weenies?

This wouldn't make sense though. The lever does have a critical safety purpose of helping keep your wheels attached to your frames. If one has even the slightest chance of working less well than the other Shimano could expose themselves to legal problems. Better to have one kind of lever that you can call state of the art.

(True, when I last undertightened the quick release on the rear wheel of my commuter bike, the only thing that happened the only thing that i experience was tire rubbing.)

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Old 09-27-18, 12:16 PM
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It's 130 vs 135mm spacing.
Tech doc for RM-30 7 speed hub (cause it was handy) shows 161 vs 166, or 5mm difference.
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Old 09-27-18, 08:17 PM
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Originally Posted by Bill Kapaun View Post
It's 130 vs 135mm spacing.
Tech doc for RM-30 7 speed hub (cause it was handy) shows 161 vs 166, or 5mm difference.
But why for a Shimano 105 hub, which would be road (130mm) only?
(Never mind that I had a Shimano 105 hub that I rebuilt with a longer axle and a 5mm spacer to reduce the wheel's dish.)
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Old 09-27-18, 09:49 PM
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Makes me wonder if Shimano may possibly be laying the groundwork for a transition towards rear road hubs having 135mm O.L.D.

Perhaps to accommodate a 12-speed cassette?

Definitely going off on a tangent here. The bike I'll want to tinker with this coming winter has a steel frame so I should be fine with the 163mm quick-release.

(Planning on a frankenbike build. A 48/36/26 triple crankset in front and 12-25 11-speed cassette in back. I'll have no choice but to use Microshift bar-end shifters to make this work. All this because.... why not? The rational thing to do would be to just sell this bike because it's become the odd one out in my small collection.)
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Old 09-27-18, 10:41 PM
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Originally Posted by estasnyc View Post
Makes me wonder if Shimano may possibly be laying the groundwork for a transition towards rear road hubs having 135mm O.L.D.

Perhaps to accommodate a 12-speed cassette?

Definitely going off on a tangent here. The bike I'll want to tinker with this coming winter has a steel frame so I should be fine with the 163mm quick-release.

(Planning on a frankenbike build. A 48/36/26 triple crankset in front and 12-25 11-speed cassette in back. I'll have no choice but to use Microshift bar-end shifters to make this work. All this because.... why not? The rational thing to do would be to just sell this bike because it's become the odd one out in my small collection.)
Fiddlesticks. As a weird old mechanic who works on weird old bikes... keep experimenting!
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