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Originally Posted by summit

SRAM Transmission

Big deal or no biggie?
Does it matter more for analog shifting than AXS?

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Not sure I'm getting your question right but there is no 'analog' Transmission, it's only electronic.

If you're wondering whether it's better than last gen AXS stuff, seems likely but I couldn't tell ya personally. I've heard reports of slower shifting, btu bomber. I like my last gen AXS stuff over analog XO Eagle, by a little bit. Mainly just cause no cable so no cable stretch or replacement. Don't have UDH on any of my bikes, even the ones that aren't even built yet so not sure when I'll try Transmission for myself.

I seem to remember acetone working well for cleaning up dried Stan’s

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Originally Posted by Dee Hubbs

Giant is still using Oversized head tubes. For one of my clients I just built a 2022 LIV Langma, and a 2022 Revolt.
Both of them took a 1-1/4" stem. I had to special order some 1-1/4 spacer set for one of them, use a stock Giant stem, and a Zipp stem.
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Well, I guess I'll stop recommending the Revolt to everyone now (at least the 2022 and newer models). What a dumb change. People want more compliance on gravel bikes, so why do this? It's even stupider than the 35mm MTB bar trend.

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Originally Posted by climberevan

Well, I guess I'll stop recommending the Revolt to everyone now (at least the 2022 and newer models). What a dumb change. People want more compliance on gravel bikes, so why do this? It's even stupider than the 35mm MTB bar trend.

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Stupid for sure but I don't think it's a reason not to recommend an otherwise great bike, especially for the money.

In other news though, I'm replacing the 35mm alloy bar on my hardtail that I bought without thinking about it. Anybody want to buy a handlebar? :cool:

Dumb for sure, but for vast majority the weird stem/spacers falls on the opposite end of the spectrum compared to in headset cable routing in MTB for me.

I’d still buy a revolt based on friends recommendations and value.

On AXS/Transmission front I’m still not a huge fan of the ergonomics of shifter. Yes you can switch top/bottom functions, but they changed the placement of the buttons themselves. Annoys me going from cable to axs even if buttons do the same thing, they’re not in the same place. Cable shifting lever has a longer throw so is further from the bar, which is the opposite for AXS where it’s tucked under

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I don’t run AXS on any of my bikes, but 4 Pros that I look after all have it on their multiple bikes. I can’t find a comfortable place to set the new AXS T-Type shifter. I think the AXS rocker panel one is the most ergo, and it’s still kinda awkward.

I’ll probably wait for Gen 3 or see what XTR brings to the table.

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Originally Posted by Dee Hubbs

I don’t run AXS on any of my bikes, but 4 Pros that I look after all have it on their multiple bikes. I can’t find a comfortable place to set the new AXS T-Type shifter. I think the AXS rocker panel one is the most ergo, and it’s still kinda awkward.

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I didn't get along with the original paddle but the rocker is good for me, def the closest to the cable shifter and takes the least getting used to. The new pod thing that seems to come with Transmission looks bad to me but who knows knows.

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Originally Posted by rideit

I’ll probably wait for Gen 3 or see what XTR brings to the table.

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Shimano better be releasing something absolutely magical with the time they're taking to come to the electronic shifting table...

There haven’t even been whispers, rumors, spy shots, nothing concrete.

SRAM Transmission drivetrains are pretty awesome, but I have seen some reports and evidence of the derailleurs clocking on the dropout. With the use of that knurled interface in leiu of a traditional b-tension adjustment, the derailleurs can move and scuff up/gouge carbon dropouts. I heard Pinkbike mentioned this in their review of the new GX Transmission group, but I haven’t seen that review.

Shimano hasn’t hit the rumor mill on the road so my guess is it is still a LONG way out for MTB. It’s not like them to “revolutionize” the game, unless gen1di2 did that(arguable). My guess is they may have just given the nod to sram and focused on eBike, but I’m just a jaded industry guy


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Originally Posted by One (+) Sentence

SRAM Transmission drivetrains are pretty awesome, but I have seen some reports and evidence of the derailleurs clocking on the dropout. With the use of that knurled interface in leiu of a traditional b-tension adjustment, the derailleurs can move and scuff up/gouge carbon dropouts. I heard Pinkbike mentioned this in their review of the new GX Transmission group, but I haven’t seen that review.

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If installed correctly the knurled surface should never move on the frame, the derailleur arms (both sides of the frame) move/rotate on the UDH (outside) and knurled washer (inside).

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Originally Posted by summit

If a person is between frame sizes based on height... size UP or DOWN when:
1. Long arms and legs, short torso?
2. Short arms and legs, long torso?

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The RAD sizing process worked for me. Measure your reach on a wall then on bikes. One brand size is not like another. Once you have the RAD size set on a string you can take to bike shops for easy sizing


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Originally Posted by Boissal

Shimano better be releasing something absolutely magical with the time they're taking to come to the electronic shifting table...

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Shimano is just doing their Japanese thing and trying to make whatever they are working on perfect before it drops; if they ever get there…

SRAM is just doing their German thing and dropping new tech every year because new is better yah

A la Lexus vs BMW…


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Shimano is doing the typical shimano thing, which means they'll wait to release their wireless drivetrain until *just* before external drivetrains become obsolete.

So we ought to see something great from Shimano in ~2028, and then Sram will come out with a worthwhile gearbox in 2029.

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Originally Posted by whyturn

The RAD sizing process worked for me. Measure your reach on a wall then on bikes. One brand size is not like another. Once you have the RAD size set on a string you can take to bike shops for easy sizing


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Is a great idea but so much of what I look at, no ability to get my hands on

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Originally Posted by nickwm21

Shimano is just doing their Japanese thing and trying to make whatever they are working on perfect before it drops; if they ever get there…

SRAM is just doing their German thing and dropping new tech every year because new is better yah

A la Lexus vs BMW…


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... German?

it's called a bro-set for a reason.

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Originally Posted by kalisto

... German?

it's called a bro-set for a reason.

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Their engineering team is in Germany


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Dominion A4 (or any brake with a syringe style bleed system question): Brakes feel pretty good, but starting to get a hair soft on long super steep descents as the pads are wearing. Can I put the syringe on the lever and just give it a quick pads in burp like you can with the shimano funnel system? Or does oil got get pulled in the same way because the syringe has too much resistance?

Thanks!

-Spencer

I've never tried to do a lever-only bleed on my Dominions, but I don't see much harm in trying.

Thanks! I just did a full bleed a little bit ago, perhaps it could have been better but overall they are doing great except on super long long hot descents. I think I am still getting used to having less of an on/off feel coming from shimano so want to stiffen them up a bit. I'll let you know if it works well.

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Originally Posted by Dantheman

I've never tried to do a lever-only bleed on my Dominions, but I don't see much harm in trying.

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Soft as in the lever throw changes over the course of the DH? Mine will occasionally do that and it's been a symptom of the pistons not retracting fully, usually due to super dusty conditions. They start pulling a tad bit closer to the bar which I really hate. A couple pumps on the lever will fix it on the trail, and once I get home I pull the pads and move the pistons out as far as they'll go, clean them, them move them back and forth a few times to properly lubricate the seals. Good as new after that.

Interesting symptom and good explanation. I’ve seen this also cause the opposite; overly firm lever that doesn’t pull in very far. The pistons don’t retract quickly and fluid from the master cylinder advances into the system when you come off the lever briefly.

Yah it is this exactly. Brakes feel great at the beginning of the ride (which I feel like is the opposite of a bad bleed), then partway down a long dusty downhill the lever throw gets longer and they don’t catch until almost at the bars.

This makes sense as I’ve had major issues with sticky pistons and brake rub with these dominions. I cleaned and exercised the pistons extensively with my last bleed and the brakes felt amazing for a few rides. I attributed it to the bleed, but it seems like it might be a piston problem again. Thanks for the tip!! I am going to try that first again before any more bleeds.

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Originally Posted by Boissal

Soft as in the lever throw changes over the course of the DH? Mine will occasionally do that and it's been a symptom of the pistons not retracting fully, usually due to super dusty conditions. They start pulling a tad bit closer to the bar which I really hate. A couple pumps on the lever will fix it on the trail, and once I get home I pull the pads and move the pistons out as far as they'll go, clean them, them move them back and forth a few times to properly lubricate the seals. Good as new after that.

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