SRAM etap update
#1
Senior Member
Thread Starter
SRAM etap update
I just upgraded our Calfee 1 X 10 E-Tandem to SRAM etap 1 X 11. The current rear wheel freehub was compatible with both 10 and 11 speed cassettes. I did not want to have to upgrade to 12 speed AXS. I contacted SRAM and they still offer an 11 speed RED rear derailleur that with the use of AXS shifters or the AXS Blip Box will function properly. I have the RED 11 speed rear derailleur, the AXS Blip Box and Blip Buttons. The system works great!
#2
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Join Date: Feb 2005
Location: SW Florida
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Bikes: '06 Bianchi Pista; '57 Maclean; '10 Scott CR1 Pro; 2005 Trek 2000 Tandem; '09 Comotion Macchiato Tandem; 199? Novara Road; '17 Circe Helios e-tandem:1994 Trek 2300
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Dub, do you find that 1X gives very large differences in gears, vs 2x?
#3
Senior Member
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I have been running 1 X for the past 6 years. 52 and 11-28. We live in the flatlands of Illinois. With the Mid drive BBSHD motor and a throttle we have not had any problem with the wind or any hill even big hills in North Carolina. The new 11 speed is 11-32.
#4
Newbie
I just upgraded our Calfee 1 X 10 E-Tandem to SRAM etap 1 X 11. The current rear wheel freehub was compatible with both 10 and 11 speed cassettes. I did not want to have to upgrade to 12 speed AXS. I contacted SRAM and they still offer an 11 speed RED rear derailleur that with the use of AXS shifters or the AXS Blip Box will function properly. I have the RED 11 speed rear derailleur, the AXS Blip Box and Blip Buttons. The system works great!
#5
Senior Member
Thread Starter
What did you do about your freehub? Were you able to use a Shimano 12 speed cassette on the 11 speed freehub?
#6
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I've never use SRAM 12 speed shifting with a Shimano 12 cassette, but most things I've seen indicate that they are pretty much interchangeable. SRAM's shifting worked pretty well on the Rotor 12 speed cassette when I used it.
#7
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Thread Starter
What cassette and chain are you using?
#8
Likes to Ride Far
Our GRX Di2 front derailleur works perfectly and we have a massive gear range and decent gaps between the gears. I can't imagine what would be the advantage or point of getting rid of a chainring on any of my bikes, and definitely not the tandem. The MTB Di2 display is also great on the tandem to show the pilot the gear combo and battery level. 1x would result in unnecessary compromises and losses IMO.
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#9
Full Member
Our GRX Di2 front derailleur works perfectly and we have a massive gear range and decent gaps between the gears. I can't imagine what would be the advantage or point of getting rid of a chainring on any of my bikes, and definitely not the tandem. The MTB Di2 display is also great on the tandem to show the pilot the gear combo and battery level. 1x would result in unnecessary compromises and losses IMO.
#10
Senior Member
Thread Starter
My situation is unique in that our bike has an electric mid drive motor. We live in Illinois on the prairie so a triple and wide range gears are not necessary. For a few years I have used a 52 tooth chainring and an 11-28 cassette with “0” issues. If I need more power all I have to do is engage the throttle. I have 9 levels of assist and have 1500 watts of power if needed.
! X works great for us!
! X works great for us!
#11
Likes to Ride Far
My situation is unique in that our bike has an electric mid drive motor. We live in Illinois on the prairie so a triple and wide range gears are not necessary. For a few years I have used a 52 tooth chainring and an 11-28 cassette with “0” issues. If I need more power all I have to do is engage the throttle. I have 9 levels of assist and have 1500 watts of power if needed.
! X works great for us!
! X works great for us!
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#12
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#13
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We do still have to pedal it for the PAS to function.
#14
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WOW. That is the first time I have heard of AXS shifters working on 11 speed etap. Did you have to do any custom programming for it?
I have an etap 11 speed kit on another bike that I could repurpose to the tandem, but that means new wheels, cranks, etc etc...which is a possible winter project...
I have an etap 11 speed kit on another bike that I could repurpose to the tandem, but that means new wheels, cranks, etc etc...which is a possible winter project...
I just upgraded our Calfee 1 X 10 E-Tandem to SRAM etap 1 X 11. The current rear wheel freehub was compatible with both 10 and 11 speed cassettes. I did not want to have to upgrade to 12 speed AXS. I contacted SRAM and they still offer an 11 speed RED rear derailleur that with the use of AXS shifters or the AXS Blip Box will function properly. I have the RED 11 speed rear derailleur, the AXS Blip Box and Blip Buttons. The system works great!
#15
Senior Member
Thread Starter
WOW. That is the first time I have heard of AXS shifters working on 11 speed etap. Did you have to do any custom programming for it?
I have an etap 11 speed kit on another bike that I could repurpose to the tandem, but that means new wheels, cranks, etc etc...which is a possible winter project...
I have an etap 11 speed kit on another bike that I could repurpose to the tandem, but that means new wheels, cranks, etc etc...which is a possible winter project...
I am also using the newest AXS Blip box. I had to do a firmware update on the blip box for it to communicate writhe the derailleur.