Ask the experts

[Falcon3]

Fuck the what? Pulled off my 12 speed shimano cassette, my free hub is HG. I didn't think hg 12 speed was a thing.

It’s not as far as I know? Knockoff maybe labeled as shimano? There are Chinese 11-52 cassettes that use hyper glide. Where did it come from?

[Beaver]

I came off an Orbea Wild H30. Spec shows, Shimano CS-M6100 10-51t 12-Speed.

[rideit]

Pandemic spec swap, perhaps? If It’s in the fine print, they can do it.

[Phall]

^most likely this. Send pic of csssette


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[Lvovsky]

Can’t get rid of squshiness in Tectro Orion 4F rear brake. Did full bleed with serenges twice.

Did multiple burps with a funnel at the lever bleed port. 40 minutes plus of tapping on the line and flicking the brake and small bubbles are keep coming up. When they seem to stop and I close the system, I can still squish the lever all the way to the handle bar. Hang bike with front wheel up for a fee days, repeat the burp with funnel (another 40 minute of flicking and tapping) - same result.

I used shimano oil. Did it not mix well with Tectro oil?

I could have over extended one of the pistons. Did not see any oil coming out, pushed it back and it seems to operate fine but…. Is the air keep getting into the lines somehow?

To add insult to injury, the brake is squeaking loudly right before it bites and fully stops the wheel. Ordered new pads and rotor to eliminate contamination issue.

What’s next? Keep bleeding till i get it right? Bring it to a shop? Buy new caliper?

Update: took the pads out and the back of the pad some oil residue. Cleaned the pads, rotor, and the cylinders. Really took my time with the cylinders to make them move smoother. Bled the brake. Scored the disk and pads with sandpaper. Put everything together. Aligned the caliper to the rotor as well as i could. Rode around to bed-in the pads and the noise was gone. Tested the bike few hours later: noise is back. Will take a kook at the pads tomorrow to see if there are any fresh fluids near the cylinders.

And I can still pull the lever all the way close to the bar after the pads bite in…

Emailed Tektro. They gave me a link to different bleed instructions : https://www.youtube.com/watch?v=WoIc7olZ_w8&t=3s

Performed recommended bleed, get improvements after lever purge, and bleed cup attached. But after removing the cup and closing the system, the sponginess comes back.

Sending the brake to Tektro under warranty tomorrow.

[panchosdad]

Broke a crank and the shop put on a 12s chainring as it was all they had that was compatible. I've got an 11s drivetrain, am i going to die?

[rideit]

Yes.

But hopefully not due to this chainring.

[toast2266]

Ok, I have one. I have a ‘22 Fox DHX2. I just ordered an SLS spring, which doesn’t quite fit the existing plastic spacer/ ‘bottom’ of the spring. The spring I am running now measures (roughly) 37mm interior diameter, and the new SLS spring runs (roughly) 35mm.
What will I need to get this running properly? I have done a crapload of googling, and haven’t found the answer. Did I order an older size SLS spring?
Or do I just need a different size spring retainer (with the circlip)?
Pics tomorrow if this is unclear.

Does the shock have a reducer installed? Was the old spring also a fox?

[Eluder]

Fuck the what? Pulled off my 12 speed shimano cassette, my free hub is HG. I didn't think hg 12 speed was a thing.

Are you sure your cassette is Shimano? Check the lockring.

[VTskibum]

Not sure Shimano make a 12 spd HH cassette, but SRAM has a lower end one. Have used it for a backup wheelset plenty.


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[riff]

Ok, a few pages back I asked about putting 12 speeds on an 11 speed driver; be advised that wide range shimano 11’s and also Sram NX 12’s use a shimano splined driver, not XD. I’m back to the drawing board, returning parts. Probably going to just go to GX 12 speed, for driver compatibility.


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[Whiteroom_Guardian]

I might be imagining someone posting about this here:

Bottom bracket/downtube protector on my GG Gnarvana started to peel away from the frame. Got so loose I just pulled it off by hand before losing it on the trail. Looks like it was held on with some type of 3M adhesive thing. Is there an updated/better way to glue this sucker on?

[Dee Hubbs]

I like to use Scotch 30lb double sided tape.

[Andeh]

I might be imagining someone posting about this here:

Bottom bracket/downtube protector on my GG Gnarvana started to peel away from the frame. Got so loose I just pulled it off by hand before losing it on the trail. Looks like it was held on with some type of 3M adhesive thing. Is there an updated/better way to glue this sucker on?

Contact GG. The adhesive they use seems very hit or miss. They'll send you new ones.

That said, the replacements I've gotten for the CS protector don't seem to hold either. The replacement SS protector is holding nicely. I very carefully cut out a ton of little Gorilla double sided tape patches to fit the underside profile, and it's holding better so far.

[MegaStoke]

I’ve found aquaseal to work well for glueing frame protection back on. Prep with a light scuff with scotch brite and isopropyl alcohol.

[Dantheman]

12 sp SLX RD will shift up the cassette just fine, but will not shift down the cassette from 1st. I backed off the barrel adjuster all the way and started from scratch, put just enough to tension on it that it will shift but still a few clicks from ideal, and it still won't shift back down the cassette. Limits seem fine.

Ideas?

[HAB]

12 sp SLX RD will shift up the cassette just fine, but will not shift down the cassette from 1st. I backed off the barrel adjuster all the way and started from scratch, put just enough to tension on it that it will shift but still a few clicks from ideal, and it still won't shift back down the cassette. Limits seem fine.

Ideas?

Not enough B tension and the guide pulley is hanging up on the granny gear is my guess.

[g_man80]

If it’s not the B screw, maybe the clutch is sticky or too tight. Does it improve with the clutch off? I’ve seen that contribute to poor 1 > 2 shifting.

What about worn or dirty shift cable or housing?

[jamal]

I would lean towards a cable/housing issue.

[El Chupacabra]

I would lean towards a cable/housing issue.

This would be my guess too. Remove cable from derailleur, shift up/down and pull the cable through the housing with your fingers to see if there's excessive resistance.

[snowaddict91]

I would lean towards a cable/housing issue.

X3. I spent a ton of time troubleshooting this on my Trance X and this wound up being the issue.

[Dantheman]

I'm guessing HAB is right and the B-tension screw has backed itself out. If you gave a little tug on the cage it would shift. Not my bike and I threw it in the stand a bit late in the evening when my brain was already ready for bed. One of those "My shifting is acting a little weird, can you take look really fast?" situations, where "a little weird" = unrideable. Brain went full PC Load Letter error mode when I saw what was happening. I'll show myself to the Ask the Idiots thread now.

[Jtlange]

I'm guessing HAB is right and the B-tension screw has backed itself out. If you gave a little tug on the cage it would shift. Not my bike and I threw it in the stand a bit late in the evening when my brain was already ready for bed. One of those "My shifting is acting a little weird, can you take look really fast?" situations, where "a little weird" = unrideable. Brain went full PC Load Letter error mode when I saw what was happening. I'll show myself to the Ask the Idiots thread now.

Check the clutch lube as another has suggested as well. They need some TLC, I have found dumonde freehub grease to be the best stuff for maintenance since it seems to run a little longer than the shimano stuff.

[Dantheman]

Check the clutch lube as another has suggested as well. They need some TLC, I have found dumonde freehub grease to be the best stuff for maintenance since it seems to run a little longer than the shimano stuff.

Will do, I have a jar of the Dumonde freehub grease already.

[g_man80]

Let me know if you want to try the newer Shimano Shadow RD+ grease when you service the clutch (I’m in SLC close to I-street). I think they updated it when the 12-spd RD came out. I have a small container of it that will last me many years.

Edit: I see Jt already mentioned the shimano grease. I may have to try Dumonde if it lasts longer.