Ask the experts

[Whiteroom_Guardian]

Sure the spoke broke?
Probably the nipple

Doh!

Yes, just the nipple. Just checked and even already have the right spoke wrench. Nipple snapped and threaded part of spoke is perfectly fine. Is a nipple just a nipple? Can pick up basically whatever they have at LBS?

[rideit]

There are 14 and 15 gague nipples, but chances are good its 14g. (2.0). Brass or aluminum?

[Whiteroom_Guardian]

There are 14 and 15 gague nipples, but chances are good its 14g. (2.0). Brass or aluminum?

Pretty sure it's alu. I already took it off the spoke so I'll just bring it with me to the shop in the AM.

[rideit]

Good call.

[John_B]

How do I fix this?


But seriously, that broke with a very audible "ping" while I was bouncing down some steep rocks right after a good sized table. I'm pretty damn happy the bars stayed on the bike and that I was able to slow it down while my bars were moving all over the place.

What happened? I assume the stem bolts were over torqued at some point, but I bought the bike used 3 years ago. I'm surprised it took that long to go tits up.

Off to the LBS tomorrow to get a new stem.

[g_man80]

This has been a common problem on the 8100's.

The 8100 rear der on my last bike was only a month old when it started creaking and became incredibly stiff. Opened up the clutch and it was dry with a few spots of rust colored deposits. I just received a new one for a bike I’m putting together and decided to open it up to inspect the clutch. How does this look? Seems to be lacking sufficient grease, but I’m not sure what a new one should look like.

[Dee Hubbs]

The actual clutch mechanism (the round part) has 2 grooves on the roller surface that hold the grease. There should be some white grease visible between the meeting point of the spring clamp band.
It’s important that you only use Shimano Internal Hub Grease.

[Roxtar]

There are 14 and 15 gague nipples, but chances are good its 14g. (2.0). Brass or aluminum?

If it broke, it's aluminum

[Roxtar]

The actual clutch mechanism (the round part) has 2 grooves on the roller surface that hold the grease. There should be some white grease visible between the meeting point of the spring clamp band.
It’s important that you only use Shimano Internal Hub Grease.

Or Shimano's Premium Grease
Or Shimano's Grease for Shimano Shadow RD Plus

[EWG]

If it broke, it's aluminum

Yup. Brass deforms rather than snaps. Alum snaps.

[EWG]

Whole Lee Fuck. That is some scary shit right there. Seriously. I’ve seen many failures but never seen that one.

I assume bolts were overtight but still. Damn. Glad you are in one piece.

A little duct tape should fix that right up. The red stuff is aerodynamically faster.

How do I fix this?


But seriously, that broke with a very audible "ping" while I was bouncing down some steep rocks right after a good sized table. I'm pretty damn happy the bars stayed on the bike and that I was able to allow it down while my bars were moving all over the place.

What happened? I assume the stem bolts were over torqued at some point, but I bought the bike used 3 years ago. I'm surprised it took that long to go tits up.

Off to the LBS tomorrow to get a new stem.

[Whiteroom_Guardian]

That's a good advert for the strength of that Chromag bar.......either way I would trash it to be safe. New bar + new stem (get a copperhead and call it good) + torque wrench!!!!

[Dee Hubbs]

Or Shimano's Premium Grease
Or Shimano's Grease for Shimano Shadow RD Plus

It may just be nomenclature, but when you say “Shimano Premium Grease” i assume you mean Dura-Ace Premium Grease, which is the florescent yellow stuff, and this will not work on the clutch.

Service bulletin from Shimano:

“Please note: You can NOT use any old grease to service the clutch.
A new grease formulated specifically for ShadowRD+ clutches will be available soon (ETA November 2018). New part #Y04121000.
This new grease lasts about twice as long as the white Nexus grease Shimano previously specified for this purpose.
The new ShadowRD+ grease must be used for derailleurs in the RD-M9100 series.
On other pre-2019 derailleurs, you can continue using white Nexus grease, but expect to service the clutch more frequently.”

[Roxtar]

It may just be nomenclature, but when you say “Shimano Premium Grease” i assume you mean Dura-Ace Premium Grease, which is the florescent yellow stuff, and this will not work on the clutch.

Service bulletin from Shimano:

“Please note: You can NOT use any old grease to service the clutch.
A new grease formulated specifically for ShadowRD+ clutches will be available soon (ETA November 2018). New part #Y04121000.
This new grease lasts about twice as long as the white Nexus grease Shimano previously specified for this purpose.
The new ShadowRD+ grease must be used for derailleurs in the RD-M9100 series.
On other pre-2019 derailleurs, you can continue using white Nexus grease, but expect to service the clutch more frequently.”

Yup, I mispoke (misposted?) about the Premium Grease

[g_man80]

Thanks for the info. I took a look at the 2 grooves on the roller surface. Not much great in there. I'll order up either the nexus or ShadowRD+ grease. It'll probably depend on what's in stock at this point!

Another question: The shimano nexus (hub) grease can be used as internal hub grease as well as clutch grease. Can the new ShadowRD+ grease be used for the internal hub, or only the clutch?

[robnow]

I'm on the Shimano STEC site and the ShadowRD+ Grease is nowhere to be found. Where are you guys finding this?

[Dee Hubbs]

I'm on the Shimano STEC site and the ShadowRD+ Grease is nowhere to be found. Where are you guys finding this?

The short answer can be found under the thread:
"This is the discussion thread for the updated: Shadow RD+ Derailleur Service module."

[Roxtar]

I'm on the Shimano STEC site and the ShadowRD+ Grease is nowhere to be found. Where are you guys finding this?

On the left sidebar click "Mountain" then in the dropdown click "drivetrain service" . Then, under courses, go to "RD+Derailleur Service"

[Whiteroom_Guardian]

I wanted to report back on the Henty Enduro Pack. Great suggestion from Toast. I have used it for about 50-60 miles now. SO nice. Way more comfortable than a Dakine hip pack. More water, great pockets that you can access while pedaling for snacks, etc. I'm sold.

[robnow]

The short answer can be found under the thread:
"This is the discussion thread for the updated: Shadow RD+ Derailleur Service module."

On the left sidebar click "Mountain" then in the dropdown click "drivetrain service" . Then, under courses, go to "RD+Derailleur Service"

Fine, I'll do the module but I mean the product does not exist when shopping the Elite site.

[jackstraw]

Anti seize or grease for a threaded bottom bracket?

[simple]

Grease (frame material?)

[toast2266]

Grease (frame material?)

This (and frame material shouldn't matter because even if it's carbon, it'll have an aluminum insert for a threaded BB).

[toast2266]

I wanted to report back on the Henty Enduro Pack. Great suggestion from Toast. I have used it for about 50-60 miles now. SO nice. Way more comfortable than a Dakine hip pack. More water, great pockets that you can access while pedaling for snacks, etc. I'm sold.

Nice. Glad that worked for you. They're great little packs that kinda fill a niche that doesn't otherwise exist.

[Dee Hubbs]

I'm on the Shimano STEC site and the ShadowRD+ Grease is nowhere to be found. Where are you guys finding this?

Fine, I'll do the module but I mean the product does not exist when shopping the Elite site.

I took your comment as "where can I find this information on S-Tec."
I was not trying to be that guy saying "just watch the module."
But ya the product is not available for purchase they have the Nexus Grease, and the Premium Grease (Dura Ace Grease), but not the newer Shimano Special Grease for Shadow RD+ Rear Derailleur Stabilizers - 50g (#Y04121000)