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Change bevel gear on shaft drive?

Old 04-05-18, 09:41 AM
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RaleighSport
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Change bevel gear on shaft drive?

Hi guys, hoping to tap your knowledge on this one as my internet searches aren't turning up anything. Was gifted a shaft drive dekra bicycle (garbage I know) rear wheel is borked beyond my willingness to work on it (spokes, rim itself etc) I have a spare single speed wheel with the same cog system as an IGH I'd like to transplant the bevel gear onto it, but I can't seem to find anything on how to remove the bevel gear, I'm not seeing a lockring, no splines that I can see either for using a removal tool, so does anyone have some non destructive suggestions? The borked wheel has a nexus 3 IGH in good condition hub I'd like to salvage.
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Old 04-05-18, 01:19 PM
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Old 04-05-18, 02:00 PM
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Originally Posted by RaleighSport View Post
Was gifted a shaft drive dekra bicycle
"Gifted." That means that until you try to fix it you can't lose any money on this deal.
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Old 04-05-18, 07:51 PM
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My first thought is can the old IGH wheel be rebuilt with new spokes and rim? (Without taking off the bevel gear).


It's quite possible that the bevel system is mounted on it's own driver, not on the Shimano hub's driver. If this is the case you'll be taking some of the hub apart to free up the unique driver. Then you get to find out the driver won't cross over to the single speed wheel. Andy
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Old 04-06-18, 05:47 PM
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Old 04-07-18, 07:21 AM
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Perhaps there is a pin through the bevel gear affixing it to the shaft or axle. If so, should be easily driven out.
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Old 04-07-18, 12:17 PM
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Originally Posted by Hoopdriver View Post
Perhaps there is a pin through the bevel gear affixing it to the shaft or axle. If so, should be easily driven out.
Likely a pin or set screw
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Old 04-07-18, 12:46 PM
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Originally Posted by Andrew R Stewart View Post
My first thought is can the old IGH wheel be rebuilt with new spokes and rim? (Without taking off the bevel gear).
+1

Even if you've never built a wheel, you may have less trouble rebuilding with a new rim than transplanting the bevel gear system from one hub to another. If the spokes are in good shape and the right length for the new rim, that will save you even more trouble.
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Old 04-18-18, 11:13 AM
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I took a quick peak, looks like there may be a lock ring on the axle holding the bevel gear in place, spokes are toast.. at least 4 broken and many more nipples in a very very bad way. If I'm correct I'll take pictures during the tear down just in case anyone else has this issue down the road.
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