Know the rules The Paceline Forum Builder's Spotlight


Go Back   The Paceline Forum > Bike Fit

Reply
 
Thread Tools Display Modes
  #1  
Old 02-27-2023, 09:34 AM
odonnebj odonnebj is offline
Senior Member
 
Join Date: Dec 2015
Location: Houston, TX
Posts: 279
SRAM AXS Road Shifters: Mech Rim vs Hydro Reach/Length Comparison?

I have a bike fit question between SRAM AXS mechanical rim brake shifters vs. hydro shifters. All else being equal on a bike fit (ie - stem and handlebar stack/reach), would you be in the exact position between the mechanical and hydro shifters? Or are one set of shifters "longer" than the other?

Last edited by odonnebj; 02-27-2023 at 09:49 AM.
Reply With Quote
  #2  
Old 02-27-2023, 11:04 AM
Sarhog's Avatar
Sarhog Sarhog is offline
Senior Member
 
Join Date: Oct 2021
Location: Greer, SC
Posts: 230
I don’t have any idea about rim brake shifters (people still ride these???) but I can tell you that with all else being equal, there’s a difference between Rival AXS and Force AXS hood size and position.
Reply With Quote
  #3  
Old 02-27-2023, 04:58 PM
callmeishmael callmeishmael is offline
Senior Member
 
Join Date: Apr 2021
Posts: 768
I've asked a similar question about Di2 vs AXS reach. I was told the premium version of BikeCAD has this data, so you might be able to find a friendly framebuilder who could give you accurate figures.
Reply With Quote
  #4  
Old 03-06-2023, 02:06 PM
Kirk007 Kirk007 is offline
formerly Landshark_98
 
Join Date: Jan 2007
Location: Bainbridge Island WA
Posts: 4,769
SRAM AXS Road Shifters: Mech Rim vs Hydro Reach/Length Comparison?

The hydro are definitely Wider, bulkier and have taller knob. I don’t think they are a lot longer, maybe a couple mm, but that difference if any can be made up for through handlebar or stem selection if necessary. That said there’s a reason Whisky, Specialized and others are now offering bars with 65-68 mm reach and it’s to account for the honking hugeness of hydro shifters.


Sent from my iPhone using Tapatalk
Reply With Quote
  #5  
Old 04-10-2023, 11:58 AM
wooger wooger is offline
Registered User
 
Join Date: Jul 2022
Posts: 15
I’ve been struggling with the same thing for Shimano Ultegra r8000 mechanical vs hydraulic hoods.

I have set my two bike up identically, same bars, reach to the flats, bar angle, drop, stem and saddle. But something is off on the rim bike, I especially notice it when trying to get in flat forearms aero position on the hoods, feels cramped at that point vs the disc bike as the hood knobs are so small.

I’m playing with the idea of a slightly longer stem, slightly higher bars to adjust for this, but it’ll surely mess up my fit in other positions.
Reply With Quote
  #6  
Old 04-11-2023, 12:40 AM
fourflys's Avatar
fourflys fourflys is online now
Back At It!
 
Join Date: May 2008
Location: Sonoma County, CA
Posts: 7,030
Quote:
Originally Posted by wooger View Post
I’ve been struggling with the same thing for Shimano Ultegra r8000 mechanical vs hydraulic hoods.

I have set my two bike up identically, same bars, reach to the flats, bar angle, drop, stem and saddle. But something is off on the rim bike, I especially notice it when trying to get in flat forearms aero position on the hoods, feels cramped at that point vs the disc bike as the hood knobs are so small.

I’m playing with the idea of a slightly longer stem, slightly higher bars to adjust for this, but it’ll surely mess up my fit in other positions.
have you measured from the tip of your saddle to the "horns" of the hoods on each bike? Obviously assuming the saddles are the same position..

I'm about to replace Campy 10 with some Ultegra 8000 on my Serotta and wondering if I'll have a longer reach to the hoods..
__________________
Be the Reason Others Succeed
Reply With Quote
  #7  
Old 09-25-2023, 12:11 PM
skouri1 skouri1 is offline
Senior Member
 
Join Date: Oct 2011
Posts: 781
Any updates on this?
I am ordering a bike with a integrated cockpit and just curious what peoples experience has been.
Specifically I am going from ultegra 6800/sram force rim brake to Ultegra Di2 12. I have read 4.6mm. anyone with direct experience?
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:12 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2023, vBulletin Solutions, Inc.