What have you done to your bike today?

Quick clean, tune up, torque check and chain swap before jerseyman.
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I am surprised the trouble these two little suckers caused! The bike was shifting perfectly fine but would randomly up shift a few gears.

I stumbled upon a YouTube video that stated it was a common problem with SLX derailleurs and he recommended the XTR jockey wheels as an upgrade. It was only 10 bucks more than the SLX wheels and allegedly they last longer. And I sure as hell wasn’t spending 300 plus for ceramic jockey wheels..

I added some extra grease but didn’t notice any significant differences to be honest (slightly different cap design), maybe it’s all internal.?.? But my problem seems to have disappeared.
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Bike N Gear said:
Noticed my Kane Head High headset shim stopped working. Replaced with actual brass shim stock to see if it will last longer.

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What's being shimmed? Headset cup for a better bearing fit? You might have better luck sizing the shim "properly" (ie, no overlap), joining the ends with a torch, and installing it with green loctite. Once cured, run a headset reamer through it. If you size the shim up, you can make a perfect fit with the reamer--it won't mind munching through slightly-too-much brass.

The headset reaming tools for oversized bearings aren't common, but some shops do have them.

BTW, beer can shims can work fine, just make sure you soak them in acetone to remove the plastic liner that all modern cans have.

Even if you don't ream it, it can be a good idea to make a solid ring shim, as installing a shim on a cylindrical surface like that when it is split can be an exercise in frustration.
 
Karate Monkey said:
What's being shimmed? Headset cup for a better bearing fit? You might have better luck sizing the shim "properly" (ie, no overlap), joining the ends with a torch, and installing it with green loctite. Once cured, run a headset reamer through it. If you size the shim up, you can make a perfect fit with the reamer--it won't mind munching through slightly-too-much brass.

The headset reaming tools for oversized bearings aren't common, but some shops do have them.

BTW, beer can shims can work fine, just make sure you soak them in acetone to remove the plastic liner that all modern cans have.

Even if you don't ream it, it can be a good idea to make a solid ring shim, as installing a shim on a cylindrical surface like that when it is split can be an exercise in frustration.
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It's actually a shim between the headset cup and the carbon frame. The fit is rediculously loose.
 
Bikeworks said:
Yesterday I did a lower fork and and air can service on the Epic. Today I pulled the crank and re-greased everything in an effort to eliminate a creak I've been having while seated and under load. I think it's the seat post, but @Steve Vai has been telepathically telling me "chainring"
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It’s always the chainring. Although my Scalpel creaks like hell and have already pulled the chainring so I guess the bike is just trash now.
 
Here’s a bad idea that I’m doing. Took this cracked-ass frame that is supposed to be field destroyed. Which it eventually will be. But not until I fix it, build it up, and ride it into the ground.

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I also cut and epoxied a 6 inch section of seatpost inside the frame as reinforcement. I still have plenty of room to run my saddle height above the repair.
 
Steve Vai said:
Here’s a bad idea that I’m doing. Took this cracked-ass frame that is supposed to be field destroyed. Which it eventually will be. But not until I fix it, build it up, and ride it into the ground.

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I also cut and epoxied a 6 inch section of seatpost inside the frame as reinforcement. I still have plenty of room to run my saddle height above the repair.
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Doing this while simultaneously attending Eric’s graduation with a degree in engineering makes for some curious timing. No? 🤷. Make sure to pass along our congratulations to him BTW. 👏
 
Juggernaut said:
Doing this while simultaneously attending Eric’s graduation with a degree in engineering makes for some curious timing. No? 🤷. Make sure to pass along our congratulations to him BTW. 👏
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It’s my younger son’s birthday as well so they were out all day without us lame parents around 😂

I stole this all out of his pile of rocket stuff.

And thanks. 1.5 years closer to retirement.
 
Steve Vai said:
Here’s a bad idea that I’m doing. Took this cracked-ass frame that is supposed to be field destroyed. Which it eventually will be. But not until I fix it, build it up, and ride it into the ground.

View attachment 281699

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I also cut and epoxied a 6 inch section of seatpost inside the frame as reinforcement. I still have plenty of room to run my saddle height above the repair.
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I repaired a Tarmac that was t-boned by a Nissan years ago. Been using it as my trainer bike for at least 8 years so it's lasted 8 rides with zero issues.
 
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Steve Vai said:
Here’s a bad idea that I’m doing. Took this cracked-ass frame that is supposed to be field destroyed. Which it eventually will be. But not until I fix it, build it up, and ride it into the ground.

View attachment 281699

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I also cut and epoxied a 6 inch section of seatpost inside the frame as reinforcement. I still have plenty of room to run my saddle height above the repair.
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Do you know how that frame cracked in the first place? Seems like a weird spot.
 
@Steve Vai it wasn't the chainring. 🧐 😑 Seated under power on hills, or dropper down and pedaling seem to make it happen (less so for the latter). I'm thinking pivot bolt or cassette. I'll re-grease saddle rails and try some more SAC for the seatpost/collar because that's fast and easy
 
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