Rear wheel spacing
10-25-21, 07:09 PM
#1
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Rear wheel spacing
Me again. Okay the front fork looks good, the derailleur jockeys are good, now to focus on the rear wheel. The dropout gap is 115mm, currently I have 124mm between the locknuts on the new wheel. I have quite the spacer in on the freewheel side, so I will try a smaller spacer and see how it looks. I can't attach the old freewheel yet as I don't have a 2-prong freewheel remover - going to source one. So should I hold off doing any spacer work until I have the freewheel threaded on? I really wish I could attach a photo, but I am on post 6 of 10 before I can add attachments.
10-25-21, 07:20 PM
#2
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115 spacing will require either a 3-speed freewheel and 1/8 chain or a 4-speed freewheel and 3/32 chain. 120 spacing will accommodate a 5-speed freewheel. If you go to 120, I recommend cold setting the rear to 120.
10-25-21, 07:22 PM
#3
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But the old freewheel is 5-speed as far as I can tell. That said, the wheel has one hell of a dish on it. But heck I cold set the front fork 10mm, doing 5mm on the back should be easy 
Last edited by Stickers66; 10-25-21 at 07:38 PM.
10-25-21, 07:25 PM
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Then your rear spacing needs to be 120.
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10-25-21, 07:47 PM
#5
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If it's a flip, I would respace the hub to 120, redish, and squeeze it in there without spreading the frame. It might slide right in.
10-25-21, 11:13 PM
#7
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Can someone explain to me what the "freewheel stop" to end of the locknut is? Is it the end of the threads on the hub? I understand this distance needs to be 29mm.
10-27-21, 09:56 AM
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@Stickers66 - The key issue is clearance between the smallest sprocket and the chain stay to allow the chain to move to and from the smallest sprocket. It will vary depending on the construction and features of the frame in that location. Some frames require more than others.
Once you have the clearance you need, then you can start getting to 120 OLD with spacers on the NDS of the axle.
The next step is rim dish to center the rim to the bike centerline.
Not all freewheels are the same "thickness."
I am in the process of converting from 8V DA to 9V Campagnolo using a TI freehub. I had to go through the steps listed.
Here is an example of the clearance that works for me.
P1050450 on Flickr
Once you have the clearance you need, then you can start getting to 120 OLD with spacers on the NDS of the axle.
The next step is rim dish to center the rim to the bike centerline.
Not all freewheels are the same "thickness."
I am in the process of converting from 8V DA to 9V Campagnolo using a TI freehub. I had to go through the steps listed.
Here is an example of the clearance that works for me.
P1050450 on Flickr
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