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Shimano GRX gravel group

Old 05-08-19, 10:36 AM
  #51  
wgscott
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Originally Posted by FlashBazbo View Post
I'm pretty surprised this hasn't come up yet. Shimano is sadly notorious for "introducing" components that don't see the market for 12+ months. What's the over/under on how many months it will take these components to actually come to market? (Shimano doesn't have road 1x YET. It's not real until it's no longer a "pre-order.")
cf: ....

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Old 05-08-19, 10:39 AM
  #52  
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Originally Posted by wgscott View Post
cf: ....

Oh, yeah. I read that. Shimano always says that. And they never meet their "introduction" announcement dates. (Shimano isn't alone in that.) Hence, my question on when everyone estimates the product will ACTUALLY be in stores.
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Old 05-08-19, 10:40 AM
  #53  
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Originally Posted by FlashBazbo View Post
Oh, yeah. I read that. Shimano always says that. And they never meet their "introduction" announcement dates. (Shimano isn't alone in that.) Hence, my question on when everyone estimates the product will ACTUALLY be in stores.
Well Di2 will probably have its entire stock go to OEM MY2020 bikes until December at a guess.
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Old 05-08-19, 10:58 AM
  #54  
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Originally Posted by Marcus_Ti View Post
Well Di2 will probably have its entire stock go to OEM MY2020 bikes until December at a guess.
That would fit the historical pattern.
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Old 05-08-19, 11:53 AM
  #55  
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This doesn't kill their own sales on their existing groups, so there is no hurry for them
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Old 05-08-19, 04:51 PM
  #56  
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Coincidentally, my brand new custom gravel frame was delivered to the shop on the very day that Shimano announced this new GRX groupset -- and they are already building it up with Ultegra Di2. No way am I waiting until they might ship this groupset to shops. Shoot, the RD, brakes, and cassettes are identical to 8070, I subbed in a Praxis 48/32 crankset (so, no need to wait for Shimano's subcompact crank), and, well, those brifters look nice -- but not nice enough to let a new frame sit idle for 3+ months.
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Old 05-08-19, 04:55 PM
  #57  
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I didn't get the Praxis Alba, because it wasn't low enough to climb Alba.
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Old 05-08-19, 06:53 PM
  #58  
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I think the higher pivot point in the levers seems like a great idea, but unfortunately it's only in the DI2 levers at the moment. Mechanical levers have the new ergonomics but not the higher pivot.
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Old 05-08-19, 07:15 PM
  #59  
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Originally Posted by DanBell View Post
I think the higher pivot point in the levers seems like a great idea, but unfortunately it's only in the DI2 levers at the moment. Mechanical levers have the new ergonomics but not the higher pivot.
Interested too but not compelled enough to swap out my existing mix and match 10 speed setup to get it. I'm setup for and in the drops over 90% of the time so I got used to not using the hoods much on my freakishly flared Venturemax bars anyway. The option would be nice though.
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Old 05-08-19, 10:02 PM
  #60  
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Originally Posted by u235 View Post
Interested too but not compelled enough to swap out my existing mix and match 10 speed setup to get it. I'm setup for and in the drops over 90% of the time so I got used to not using the hoods much on my freakishly flared Venturemax bars anyway. The option would be nice though.
Yeah, I'm in the process of scoping out a new bike, so this kind of news is interesting to me but I certainly wouldn't be needing to switch it up if I had a gravel bike that was set up the way I liked it already. As someone else said above you can run road 105 or Ultegra with a Praxis crankset and you have basically the same setup.

The only really interesting thing is the interrupter levers, in my opinion. I don't even want them but it's cool tech and I can see where that would be a motivator for some people.
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Old 05-09-19, 05:26 AM
  #61  
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I’m just not going to feel comfortable on gravel anymore with my old school 105.
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Old 05-09-19, 08:02 AM
  #62  
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I think I need to take a closer look at what gears I'm using. These smaller front gears may be great for me.


I have always been fine with a 50/34 compact crankset with an 11-32 cassette and can always find a gear, but do I ever really use the 50/11 combo? Never.
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Old 05-09-19, 08:34 AM
  #63  
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Originally Posted by DanBell View Post
The only really interesting thing is the interrupter levers, in my opinion. I don't even want them but it's cool tech and I can see where that would be a motivator for some people.
My 10 speed bike in 1982 had brake levers in a similar spot. I used them but always thought they weren't very useful overall. 35+ years later and my opinion hasn't changed. It's a solution for a problem that doesn't really exist.

I also feel like Shimano needs to work on releasing road/gravel Di2 12 speed. Hopefully they make all the 11 speed Di2 levers compatible with the 12 speed Di2 derailers. Sram already beat them to the market, and may very well get my money once the individual components become available separately.
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Old 05-09-19, 09:22 AM
  #64  
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I know the early adopter market is clamoring for 12-speed but, to be honest, I don't use all of 11-speed. I tend to shift the rear two cogs at a time, almost every time. I don't like the range limitations of 1x (I tried it for over a year), but I could easily be happy with a 2x7 or 2x8. I wouldn't miss anything compared to a 2x12.
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Old 05-09-19, 10:06 AM
  #65  
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Originally Posted by Koyote View Post
Coincidentally, my brand new custom gravel frame was delivered to the shop on the very day that Shimano announced this new GRX groupset -- and they are already building it up with Ultegra Di2. No way am I waiting until they might ship this groupset to shops. Shoot, the RD, brakes, and cassettes are identical to 8070, I subbed in a Praxis 48/32 crankset (so, no need to wait for Shimano's subcompact crank), and, well, those brifters look nice -- but not nice enough to let a new frame sit idle for 3+ months.
Re red/bold...

The GRX calipers are the same but the levers are completely different.

The hoods are shaped to help hands stay planted over bumps. The lever has texture and a notch for fingers.

Most importantly however, the new levers are progressive. They move lots of fluid fast when first pressed to bring the pads into contact with the rotors quickly. They then fluid volume for better modulation. This is one of the reasons I want to try them.

To be clear, I would not wait either. I'm with you on that.


-Tim-
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Old 05-09-19, 10:15 AM
  #66  
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The Ultegra calipers are rebranded XT, so one caliper now has three different naming conventions.
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Old 05-09-19, 10:16 AM
  #67  
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Originally Posted by DanBell View Post
Yeah, I'm in the process of scoping out a new bike, so this kind of news is interesting to me but I certainly wouldn't be needing to switch it up if I had a gravel bike that was set up the way I liked it already. As someone else said above you can run road 105 or Ultegra with a Praxis crankset and you have basically the same setup.

The only really interesting thing is the interrupter levers, in my opinion. I don't even want them but it's cool tech and I can see where that would be a motivator for some people.
The FSA Omega 10/11 speed cranks have options for 46/30 rings and some combinations around that too if you don't mind having exactly only one choice of a BB for it's 19 spindle. I have one laying around I am considering that when my Tiagra compact finally wears out.

Last edited by u235; 05-09-19 at 11:05 AM.
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Old 05-09-19, 11:10 AM
  #68  
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Originally Posted by TimothyH View Post
Re red/bold...

The GRX calipers are the same but the levers are completely different.

The hoods are shaped to help hands stay planted over bumps. The lever has texture and a notch for fingers.

Most importantly however, the new levers are progressive. They move lots of fluid fast when first pressed to bring the pads into contact with the rotors quickly. They then fluid volume for better modulation. This is one of the reasons I want to try them.

To be clear, I would not wait either. I'm with you on that.


-Tim-
Yep, you're right, and I knew all of that. I should've been more specific. In fact, I think those levers are potentially the best upgrade in the new GRX groupset...And having the FD sit proud of the seat tube by an extra 2.5mm might allow more tire clearance in some frames.
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Old 05-09-19, 11:13 AM
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Originally Posted by FlashBazbo View Post
I know the early adopter market is clamoring for 12-speed but, to be honest, I don't use all of 11-speed. I tend to shift the rear two cogs at a time, almost every time. I don't like the range limitations of 1x (I tried it for over a year), but I could easily be happy with a 2x7 or 2x8. I wouldn't miss anything compared to a 2x12.

I am running a 1x11 right now. The main gripe I have is the large percentage gaps between the gears. Take a similar range cassette and add another cog and now the gaps become smaller. 2x set ups benefit by having smaller range cassettes which have smaller gaps.

I'm not 100% sold on 1x gravel drivetrains but I think the shimano 12 spd 10-45 cassette is worth a try. I think it would make a great gravel set up with a 36t-40t chainring.
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Old 05-09-19, 11:22 AM
  #70  
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Originally Posted by TimothyH View Post
Most importantly however, the new levers are progressive. They move lots of fluid fast when first pressed to bring the pads into contact with the rotors quickly. They then fluid volume for better modulation. This is one of the reasons I want to try them.
That's called servo wave by Shimano. Something that the current DA and Ultegra levers use as well.

https://bike.shimano.com/en-US/techn...ve-action.html
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Old 05-09-19, 11:32 AM
  #71  
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Originally Posted by TimothyH View Post
Re red/bold...

The GRX calipers are the same but the levers are completely different.

The hoods are shaped to help hands stay planted over bumps. The lever has texture and a notch for fingers.

Most importantly however, the new levers are progressive. They move lots of fluid fast when first pressed to bring the pads into contact with the rotors quickly. They then fluid volume for better modulation. This is one of the reasons I want to try them.

To be clear, I would not wait either. I'm with you on that.


-Tim-
That's just Shimano mtb brakes. It's why people say sram has more modulation because you don't get that quick initial bite like Shimano. The sram modulation is annoying on dirt. I want my brakes to engage right away.
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Old 05-09-19, 12:12 PM
  #72  
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I'm going to be happy to get a decent Shimano crank with 46-30 for road as well as gravel bikes.
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Old 05-09-19, 12:37 PM
  #73  
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Originally Posted by Koyote View Post
Yep, you're right, and I knew all of that. I should've been more specific. In fact, I think those levers are potentially the best upgrade in the new GRX groupset...And having the FD sit proud of the seat tube by an extra 2.5mm might allow more tire clearance in some frames.
I agree.

If they work as advertised then the progressive levers are the most compelling part of the whole product line.


-Tim-
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Old 05-10-19, 11:55 AM
  #74  
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i am excited about this and would love to get my hands on it.... except I just bought a chain and rear cassette for my Salsa Journeyman.. I would love to put all shimano on it.
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Old 05-10-19, 02:40 PM
  #75  
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Shimano dedicated gravel group set thread merged with Shimano GRX Group thread because they are very similar. This will make for better discussions.
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