I think I finally fixed my bike
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I think I finally fixed my bike
I have kids, so my window to really spread out with a bunch of bike parts and tools and chemicals is from midnight to 4am. That's half a day. I go to bed at 8pm with the kids and set an alarm for 12am. Afterwards, I sleep a little more before it's time to start the day.
Anyway, my rear wheel has been acting up for many thousands of miles. It's a 26" mountain bike wheel with a 126mm hub. I can't buy a new wheel, so I kept working on it.
After many hours, I finally got the wheel true, but that involved vice grips, changing out all the nipples, buying washers for the nipples, etc.
Next I replaced a bent axle. It is a bolt on axle with cups and cones, so pretty easy.
The next problem is that the bearings continue to loosen up on me. I tighten them about weekly.
Then I had another bent axle.
At some point, I began to see red flags that the dropouts were not aligned. The axle would sit in the derailleur "fork" on the right side, but to get the wheel in straight, the left side would be very close to the end of the dropout.
I got some string and ran it around the bike from one dropout to the other, but couldn't detect anything amiss.
I got a pair of 12"x3/8" threaded rods from Home Depot and bolted them tightly into the dropouts with nuts and washers. When I put the left threaded rod where the axle goes, the two rods met even neatly in the middle.
So here's the breakthrough. I had a brand new wheel with a 135mm hub, so I decided to use the threaded rod and nuts to stretch the bike apart 9mm to make it fit. That worked like crazy and solved all my wheel and hub issues. Next I decided to use my threaded rods to check the dropout alignment. As before, the rods met in the middle, but now the left side was closer to the center of the dropout - that was a concern that fixed itself.
The real breakthrough was when I got a long straightedge. I realized that even though my threaded rods were meeting perfectly in the center, they might not be parallel. I had 24" of threaded rod bolted to the bike and a 24" straightedge. I started looking for issues. I pushed the straightedge between the spokes and got under and around the bike and started really looking. I determined that the two rods were not parallel but rather meeting in the center at a slight angle. If I had installed a solid axle there, something would have had to bend to make it fit. So I used the leverage of the long threaded rods to bend the dropouts slightly into perfect alignment.
I still can't ride the bike, sadly, because 4am came and while I had a complete bike and even a good rear tire and brakes, the rear derailleur was completely out of adjustment and I needed sleep. I'll need another night to set my alarm to fix the derailleur.
Anyway, my rear wheel has been acting up for many thousands of miles. It's a 26" mountain bike wheel with a 126mm hub. I can't buy a new wheel, so I kept working on it.
After many hours, I finally got the wheel true, but that involved vice grips, changing out all the nipples, buying washers for the nipples, etc.
Next I replaced a bent axle. It is a bolt on axle with cups and cones, so pretty easy.
The next problem is that the bearings continue to loosen up on me. I tighten them about weekly.
Then I had another bent axle.
At some point, I began to see red flags that the dropouts were not aligned. The axle would sit in the derailleur "fork" on the right side, but to get the wheel in straight, the left side would be very close to the end of the dropout.
I got some string and ran it around the bike from one dropout to the other, but couldn't detect anything amiss.
I got a pair of 12"x3/8" threaded rods from Home Depot and bolted them tightly into the dropouts with nuts and washers. When I put the left threaded rod where the axle goes, the two rods met even neatly in the middle.
So here's the breakthrough. I had a brand new wheel with a 135mm hub, so I decided to use the threaded rod and nuts to stretch the bike apart 9mm to make it fit. That worked like crazy and solved all my wheel and hub issues. Next I decided to use my threaded rods to check the dropout alignment. As before, the rods met in the middle, but now the left side was closer to the center of the dropout - that was a concern that fixed itself.
The real breakthrough was when I got a long straightedge. I realized that even though my threaded rods were meeting perfectly in the center, they might not be parallel. I had 24" of threaded rod bolted to the bike and a 24" straightedge. I started looking for issues. I pushed the straightedge between the spokes and got under and around the bike and started really looking. I determined that the two rods were not parallel but rather meeting in the center at a slight angle. If I had installed a solid axle there, something would have had to bend to make it fit. So I used the leverage of the long threaded rods to bend the dropouts slightly into perfect alignment.
I still can't ride the bike, sadly, because 4am came and while I had a complete bike and even a good rear tire and brakes, the rear derailleur was completely out of adjustment and I needed sleep. I'll need another night to set my alarm to fix the derailleur.
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I'm kinda confused on the whole "kids" thing...Why not work until it's time to go to bed at adult time and sleep till morning?
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Kids want stuff like dinner, butt wiping, zippering, help resolving conflicts, etc. I can do simple stuff like laundry or dishes with kids around, but not work on bikes.
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I have kids, so my window to really spread out with a bunch of bike parts and tools and chemicals is from midnight to 4am. That's half a day. I go to bed at 8pm with the kids and set an alarm for 12am. Afterwards, I sleep a little more before it's time to start the day.
Anyway, my rear wheel has been acting up for many thousands of miles. It's a 26" mountain bike wheel with a 126mm hub. I can't buy a new wheel, so I kept working on it.
After many hours, I finally got the wheel true, but that involved vice grips, changing out all the nipples, buying washers for the nipples, etc.
Next I replaced a bent axle. It is a bolt on axle with cups and cones, so pretty easy.
The next problem is that the bearings continue to loosen up on me. I tighten them about weekly.
Then I had another bent axle.
At some point, I began to see red flags that the dropouts were not aligned. The axle would sit in the derailleur "fork" on the right side, but to get the wheel in straight, the left side would be very close to the end of the dropout.
I got some string and ran it around the bike from one dropout to the other, but couldn't detect anything amiss.
I got a pair of 12"x3/8" threaded rods from Home Depot and bolted them tightly into the dropouts with nuts and washers. When I put the left threaded rod where the axle goes, the two rods met even neatly in the middle.
So here's the breakthrough. I had a brand new wheel with a 135mm hub, so I decided to use the threaded rod and nuts to stretch the bike apart 9mm to make it fit. That worked like crazy and solved all my wheel and hub issues. Next I decided to use my threaded rods to check the dropout alignment. As before, the rods met in the middle, but now the left side was closer to the center of the dropout - that was a concern that fixed itself.
The real breakthrough was when I got a long straightedge. I realized that even though my threaded rods were meeting perfectly in the center, they might not be parallel. I had 24" of threaded rod bolted to the bike and a 24" straightedge. I started looking for issues. I pushed the straightedge between the spokes and got under and around the bike and started really looking. I determined that the two rods were not parallel but rather meeting in the center at a slight angle. If I had installed a solid axle there, something would have had to bend to make it fit. So I used the leverage of the long threaded rods to bend the dropouts slightly into perfect alignment.
I still can't ride the bike, sadly, because 4am came and while I had a complete bike and even a good rear tire and brakes, the rear derailleur was completely out of adjustment and I needed sleep. I'll need another night to set my alarm to fix the derailleur.
Anyway, my rear wheel has been acting up for many thousands of miles. It's a 26" mountain bike wheel with a 126mm hub. I can't buy a new wheel, so I kept working on it.
After many hours, I finally got the wheel true, but that involved vice grips, changing out all the nipples, buying washers for the nipples, etc.
Next I replaced a bent axle. It is a bolt on axle with cups and cones, so pretty easy.
The next problem is that the bearings continue to loosen up on me. I tighten them about weekly.
Then I had another bent axle.
At some point, I began to see red flags that the dropouts were not aligned. The axle would sit in the derailleur "fork" on the right side, but to get the wheel in straight, the left side would be very close to the end of the dropout.
I got some string and ran it around the bike from one dropout to the other, but couldn't detect anything amiss.
I got a pair of 12"x3/8" threaded rods from Home Depot and bolted them tightly into the dropouts with nuts and washers. When I put the left threaded rod where the axle goes, the two rods met even neatly in the middle.
So here's the breakthrough. I had a brand new wheel with a 135mm hub, so I decided to use the threaded rod and nuts to stretch the bike apart 9mm to make it fit. That worked like crazy and solved all my wheel and hub issues. Next I decided to use my threaded rods to check the dropout alignment. As before, the rods met in the middle, but now the left side was closer to the center of the dropout - that was a concern that fixed itself.
The real breakthrough was when I got a long straightedge. I realized that even though my threaded rods were meeting perfectly in the center, they might not be parallel. I had 24" of threaded rod bolted to the bike and a 24" straightedge. I started looking for issues. I pushed the straightedge between the spokes and got under and around the bike and started really looking. I determined that the two rods were not parallel but rather meeting in the center at a slight angle. If I had installed a solid axle there, something would have had to bend to make it fit. So I used the leverage of the long threaded rods to bend the dropouts slightly into perfect alignment.
I still can't ride the bike, sadly, because 4am came and while I had a complete bike and even a good rear tire and brakes, the rear derailleur was completely out of adjustment and I needed sleep. I'll need another night to set my alarm to fix the derailleur.
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I don't understand how a different axle helps. The 135mm hub with the freewheel installed on it was too wide to fit in between the dropouts.
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The only difference in your type of wheel between a 126 and a 135 is the length of the axle and a few spacers, and since it's a solid axle, you could use the longer one anyway.
Last edited by wheelreason; 02-28-24 at 09:06 PM.
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I think I'm starting to see what you are getting at. However, the new wheel that I installed is 135 with sealed bearings and quick release. Are you saying that if I found a new 135 bolt on wheel, I can remove spacers to convert it to a 126?
#16
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I could be wrong, but you may be able to convert a 135 wheel to 126 by fitting a shorter (old style) 7-speed freehub. Not certain, I don't know if the hub flange spacing changed. My '89 Cannondale 7-speed cassette is on 126mm, pre-hyperspaceglide. How many speed rear are you running?
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Yes. But if you have a q-release one and have already spread the frame, no sense in going back, but it's your bke, so. Also, sounds like your frame has thin r dropouts, make sure the axle isn't too long, cause then you won't be able to get it to snug properly.
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I could be wrong, but you may be able to convert a 135 wheel to 126 by fitting a shorter (old style) 7-speed freehub. Not certain, I don't know if the hub flange spacing changed. My '89 Cannondale 7-speed cassette is on 126mm, pre-hyperspaceglide. How many speed rear are you running?
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Oh my you certainly have a lot of problems with your bikes. You had a ton of rear derailer issues, chain issues. I don’t know why you needed spokewashers to replace nipples, heck I don’t know why you had to replace nipples. You say you didn’t have a problem replacing a bent axel, but you did, you did not properly tighten the cone/locknut that why you had to adjust, multiple times. You are bending axels, yes freewheel is more prone but are you using heavy loaded rack? It could be that your style of riding, are you curb hopping? Are you always seated? Hitting potholes with full weight is not good on back end. A good freehub should be better for you than the freewheel hub.
I don’t think you have it all solved.
I don’t think you have it all solved.