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Your Most Recent Cycling-related Repair

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Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Your Most Recent Cycling-related Repair

Old 08-29-22, 02:19 AM
  #176  
znomit
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Originally Posted by 1sp33d View Post
That makes sense. Any idea how the derailleur would get into the wheel in the first place?
Might be a poorly adjusted limit screw. Might be a loose mounting bolt on the derailleur, might have been knocked at some stage.
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Old 08-29-22, 09:24 AM
  #177  
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Originally Posted by 1sp33d View Post
That makes sense. Any idea how the derailleur would get into the wheel in the first place?
Originally Posted by znomit View Post
Might be a poorly adjusted limit screw. Might be a loose mounting bolt on the derailleur, might have been knocked at some stage.
Another way to lose a rear derailleur is from "chain suck" on the front chainring. I pulled off two derailleurs that way.
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Old 08-29-22, 08:31 PM
  #178  
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Originally Posted by terrymorse View Post
Another way to lose a rear derailleur is from "chain suck" on the front chainring. I pulled off two derailleurs that way.
Thanks! What is chain suck? From cross chaining? I've been trying to make sure I don't cross chain. This bike has a triple crank from the original tiagra.
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Old 08-29-22, 10:45 PM
  #179  
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Originally Posted by 1sp33d View Post
Thanks! What is chain suck? From cross chaining? I've been trying to make sure I don't cross chain. This bike has a triple crank from the original tiagra.
Here’s a good article on chain suck at mtbr.com.
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Old 09-17-22, 01:37 AM
  #180  
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Thank you terrymorse . I broke my rear derailleur too a while back on an old bike (fortunately the replaceable hanger broke not the derailleur itself) when it got caught up in the spokes, and I think it may have been due to chainsuck since I was shifting the front down under load with a dirty chain (not sure if that matters).

I also re-indexed my rear derailleur on my Trek. I was scared that it might be that I had bent the hanger again. It has not been long since I had indexed my rear derailleur so it made me interested in ditching indexing for these interesting handlebar friction shifters (Dia-Compe or the new Genevalle as in the video below).

BUT, I found that the serious issues I was having was due to my having routed the chain the wrong way around one rear derailleur cage tabs when replacing the chain after waxing. I am relieved to see that I am not the first to have done this, no but, I am ashamed, and since it now works fine, I will stick with indexed shifters.

I also re-glued upper to sole again and added some tape to the fraying heel liner. The ratchets and ratchet straps and one cleat bolt nut in the sole has been replaced. Soon I'll have to replace the fuzzy side of the toe strap Velcro. They look decrepit but functionally they are little different from a new pair, maybe.

Old Shimano Cycling Shoes by Timothy Takemoto, on Flickr

And I put the 100 yen shop (dollar store) EVA insoles in these too.

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Old 09-24-22, 07:23 PM
  #181  
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As suggested by Mojo31, thank you, I used a self adhesive steel pad on my opposite chain stay.

Chainstay Protector by Timothy Takemoto, on Flickr
It weighs a similar amount to the thin piece of piping that I used, but it requires little preparation (other than bending it into a C shape), the steel is stainless, it comes with glue on the back and it is cheap from China (about 60cents a pad). I recommend sticking them to your chain stays if you see any wear there. I don't use my Look much these days because I prefer the firmness of my Trek. Part of the squigginess of my Look may be due to chainstay wear. I think it is mostly however that the Trek is simply a firmer frame.

Last edited by timtak; 09-27-22 at 05:17 AM.
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Old 10-10-22, 11:34 PM
  #182  
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Since it is getting chilly I made some more shoe covers from plastic soda bottle covers, white with a pattern -- "Bird Watching" -- on them this year at 220 yen (1.5 USD) the pair. The strap is a bit tight for my 27.5cm (US 9.5 Europe 43) feet but it can be extended a little at the buckle to make it just the right length, so I am using the straps and I bought another pair for my Sidis.

Bottle Shoe cover by Timothy Takemoto, on Flickr

Sidis Too by Timothy Takemoto, on Flickr

I also attempted to mend my older bike the derailleur of which had been sheered off at the hanger when the chain got stuck and the derailleur ended between the spokes. It turned out it was probably due to my using an aftermarket Chinese rear-derailleur jockey wheel which is 0.5mm too thick, purchased because I hate paying 15USD for a pair of Shimano ones! But even with a brand new derailleur hanger, the derailleur is clearly way off kilter and the thin (half thickness compared to Trek non-removable / factory removable type) piece of aluminum (?) that the removal derailleur hanger is fixed to is bent. Now I know why some prefer the old-school Trek Madone / 5200 way of doing things.

A bevel washer would not work because I would have to cross thread the derailleur bolt. I am going to investigate wedge washers if such things exist before attempting to bend the hanger attachment point or the hanger itself (which is really weak).(Not wedge but) Bevel washers are a thing and cheap from China. This may mean that I don't need to bend the attachment point so much.https://www.aliexpress.com/item/1005001774675845.html

Last edited by timtak; 10-11-22 at 09:29 PM.
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