Ask the experts

[Spencer123]

We are moving from SLC to Bellingham in October. My wifes Code RSC's are about ready for new pads. Anything to know about what works best for the wet winters? Right now she has the stock Sram metallic pads which havn't given her any issues. Metallic vs organic up there? Better after-market options suited for the climate?

Thanks!

[SJG]

Which rear mech? Shimano clutches in my experience need a service around 700-800mi. Took me a while to figure out what was causing problems, but this is important. Don't have the clutch problem with SRAM. Basically the clutch gets very stiff and grabby, and will not spring back. Service is a 15min job.

I have a weird chain noise problem and am wondering if anyone else has experienced this or knows if there is any way to fix it.

I have the Stans wheels that came stock on my bike - 2020 Fezzarri Delano Peak. Over time a weird problem has developed where I get bad chain noise in any gear above 5th when riding rough terrain and hitting something hard, but none below. My chain is short/tight, my clutch is tight and I have serviced it recently. I have a chain noise damper thing on the chain stay and can’t even see if/where the chain would be hitting anything. I even just re greased the freehub and replaced the freehub bearings. I’m fairly certainly this is pedal kickback chain slap where hard hits are engaging the freehub. It’s the “durasync” freehub without a lot of engagement points. I can tell the noise is the same noise that happens if I quickly stomp on the pedals so that the hub engages abruptly. Has anyone else experienced something like this? I can be riding a tech downhill, getting this noise, then shift down one gear and it is pretty much silent.

[ZomblibulaX]

Jesus H Christ... looking at a 2022 Giant Trance X Advanced Pro 29 frame...

What size BB does this frame actually use? Giant's website specifies it as "SRAM Dub PressFit". No shit.

I think it's BB92, but have no way of knowing for sure.

[wendigo]

vital has it at 92

[ZomblibulaX]

Hail to thee, internet denizen who can actually use google. Thanks.

[Dromond]

Which rear mech? Shimano clutches in my experience need a service around 700-800mi. Took me a while to figure out what was causing problems, but this is important. Don't have the clutch problem with SRAM. Basically the clutch gets very stiff and grabby, and will not spring back. Service is a 15min job.

I have the Shimano XT and have fully serviced the clutch. It feels normal - like the ones on my friend’s bikes.

[Falcon3]

Jesus H Christ... looking at a 2022 Giant Trance X Advanced Pro 29 frame...

What size BB does this frame actually use? Giant's website specifies it as "SRAM Dub PressFit". No shit.

I think it's BB92, but have no way of knowing for sure.

BB92 was the Giant standard for their 2017-2020 bikes, I'm almost sure it still is.

[GBB]

They can go either way. The part numbers are the same for front/rear/left/right. They come with long lines on both, so you can mount them what ever way you want.

Thanks, Dee. It looks like the only thing I need to change is the direction of the bar clamp so the little arrows face up. I appreciate the help.

[Thaleia]

Anyone know or have experience with a bike fitting system called id match? https://www.idmatch.cc/en

Started doing longer road rides and am experiencing really bad lower back pain now so thinking it's time for a proper bike fit.

There's a local guy who does bike fitting using the above system. Seems a touch gimmicky to me but I have zero knowledge in this area. Anyone use it by any chance? Thoughts?

[XtrPickels]

Anyone know or have experience with a bike fitting system called id match? https://www.idmatch.cc/en

Started doing longer road rides and am experiencing really bad lower back pain now so thinking it's time for a proper bike fit.

There's a local guy who does bike fitting using the above system. Seems a touch gimmicky to me but I have zero knowledge in this area. Anyone use it by any chance? Thoughts?

A tool is just a tool. They can make the job easier, but it's the person running the show that makes the difference.
The biggest issue with systems like this is that they are decent at getting people within a "box of acceptability". Your knee angle should be this, hip angle that,.... etc.
That may help your issue, or you may be someone who can't be in a normal box.

[J. Barron DeJong]

Anyone know or have experience with a bike fitting system called id match? https://www.idmatch.cc/en

Started doing longer road rides and am experiencing really bad lower back pain now so thinking it's time for a proper bike fit.

There's a local guy who does bike fitting using the above system. Seems a touch gimmicky to me but I have zero knowledge in this area. Anyone use it by any chance? Thoughts?

Maybe do you can do it DIY, with the help of AI motion capture:

https://www.cyclingweekly.com/fitnes...-they-differed

Haven’t used it, I like the idea of being able to make it an iterative process, which is likely to get very expensive if going to a fitter.

As you’re ramping up on riding are you limiting other exercises that strain your back, like maybe not doing deadlifts? (i.e. is it possible it’s getting sore from overuse, not position?)

[Thaleia]

A tool is just a tool. They can make the job easier, but it's the person running the show that makes the difference.
The biggest issue with systems like this is that they are decent at getting people within a "box of acceptability". Your knee angle should be this, hip angle that,.... etc.
That may help your issue, or you may be someone who can't be in a normal box.

Good insight, appreciate that.

Maybe do you can do it DIY, with the help of AI motion capture:

https://www.cyclingweekly.com/fitnes...-they-differed

Haven’t used it, I like the idea of being able to make it an iterative process, which is likely to get very expensive if going to a fitter.

As you’re ramping up on riding are you limiting other exercises that strain your back, like maybe not doing deadlifts? (i.e. is it possible it’s getting sore from overuse, not position?)

Interesting, thank you, wasn't aware of that option.

I don't really exercise other than cycling.

[singlesline]

Why is my chain suddenly loose in the 12th cog? OK in 11 and shifts fine.

Should be able to fix this with the B screw but why all of the sudden? B screw moved? Seems like a lot for it to slip.

edit: yeah, b screw was way out. Brought it back to spec and there’s just a tiny bit of tension on the chain in the little cog.

[beaterdit]

Hit it with some Loctite

[jamal]

derailleur hanger slipped/rotated?

[thefortrees]

We are moving from SLC to Bellingham in October. My wifes Code RSC's are about ready for new pads. Anything to know about what works best for the wet winters? Right now she has the stock Sram metallic pads which havn't given her any issues. Metallic vs organic up there? Better after-market options suited for the climate?

Thanks!

Mtx red if you want quiet brakes in the wet

[volklpowdermaniac]

gonna completely break this down and rebuild... what's a good soaking medium to start with for a 24-48 hour type of thing before i dig in?

[Andeh]

When I've rebuilt Kings, I've just blasted them with aerosol suspension cleaner then compressed air to get the chunks out. After a couple rounds of that, any liquid comes out clean.

[volklpowdermaniac]

When I've rebuilt Kings, I've just blasted them with aerosol suspension cleaner then compressed air to get the chunks out. After a couple rounds of that, any liquid comes out clean.

beauty

[rideit]

Why is my chain suddenly loose in the 12th cog? OK in 11 and shifts fine.

Should be able to fix this with the B screw but why all of the sudden? B screw moved? Seems like a lot for it to slip.

edit: yeah, b screw was way out. Brought it back to spec and there’s just a tiny bit of tension on the chain in the little cog.

What Beatered said. But first, remove the b-screw, and clean with solvent or something. There is also an old race technique of using a tiny nut that fits on the screw in order to make it lock into place. Super bomber solution.

[SJG]

Shimano B-screws MOVE, back out. Buddy of mine had his move, jockey wheel touched cassette, cassette pulled it in and BOOM. Burning $.

I've tried loctite, but nothing works as well as a lock nut. I don't understand why they don't put them on from factory, what is it 3g?

[singlesline]

My new MTX golds also became loud AF by the end of their first day. Earlier bike I put them on they were not loud at all.

MTX does say you might need to prep the rotors if coming from metallic pads and I definitely did not do that...

https://support.mtxbraking.com/hc/en...my-used-rotors

I ran through MTX’s full rotor prep instructions, sanded the pads back to a fresh surface, did a full bleed, bedded them back in.

They seem quiet now? Got an occasional noise out of them, but not the heinous screeching they were making by the end of my first day on the.

[Roxtar]

gonna completely break this down and rebuild... what's a good soaking medium to start with for a 24-48 hour type of thing before i dig in?

Like others say, just clean and relube. Soaking the entire assy in any solvent risks damaging the seals and any plastic components.

[XXX-er]

I ran through MTX’s full rotor prep instructions, sanded the pads back to a fresh surface, did a full bleed, bedded them back in.

They seem quiet now? Got an occasional noise out of them, but not the heinous screeching they were making by the end of my first day on the.

I bought a used Fat bike with screeching brakes so for the rotor prep I used a red sanding disc chucked in my drill, run it at a slight angle the disc will rotate the wheel/ rotor as it sands and then bed the pads in doing hard the stop on a big hill

[joetron]

Diaz Suspension Design has a pretty good series of IG posts going about fork alignment rn. He shows before and after videos and talks about where they find issues. Spoiler: He doesn’t describe exactly what he does to fix things, because that’s how he pays the rent.
It’s the most recent 4 posts on his profile.


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