Shimano XT or GRX???
Hi guys.
Some advice please…
I’m about to go into the di2 world for the first time on my 1 x Gravel bike.
I am looking at either the GRX 817 rear mech or the XT 8050 or 9050 rear mechs.
I am unsure around the drivetrain capacity of the XT mechs as they state 35T? I’ve tried to work this out but as the calculations involve two chain rings normally I’m not sure if it applies to 1 x systems.
I would be looking at using a 42T up front and a 11-42 rear cassette.
Would the XT system cater for this? I’d be looking at the medium cage XT mech.
The GRX 817 specifics don’t mention anything about drivetrain capacity!!
Confused…….you will be. Please give me some help!!
Thanks.
Some advice please…
I’m about to go into the di2 world for the first time on my 1 x Gravel bike.
I am looking at either the GRX 817 rear mech or the XT 8050 or 9050 rear mechs.
I am unsure around the drivetrain capacity of the XT mechs as they state 35T? I’ve tried to work this out but as the calculations involve two chain rings normally I’m not sure if it applies to 1 x systems.
I would be looking at using a 42T up front and a 11-42 rear cassette.
Would the XT system cater for this? I’d be looking at the medium cage XT mech.
The GRX 817 specifics don’t mention anything about drivetrain capacity!!
Confused…….you will be. Please give me some help!!
Thanks.
0
Comments
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GRX817: up to 42T https://bike.shimano.com/en-EU/product/component/grx-di2/RD-RX817.html
Deore XT 8050 / XTR 9050: up to 46T (1x) https://bike.shimano.com/en-EU/product/component/deorext-m8050-di2.html / https://bike.shimano.com/en-EU/product/component/xtr-m9050-di2/RD-M9050-GS.html
Shimano has great documentation!0 -
Thanks. My question was more around if the 11-42 and 42T setup would work with the XT with the drivetrain capacity of 35T.0
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Wot Red rider says.
Your required total capacity is 42-11 = 31T if you are on a 1x. Both these derailleurs can cope. XT would manage a 46T low gear also (46-11=35). Grx possibly not.
Xt8050
Total capacity 35T
Low sprocket_Max. 42T (2x11-speed) 46T (1x11-speed)
Low sprocket_Min. 40T
https://bike.shimano.com/en-EU/product/component/deorext-m8050-di2/RD-M8050-GS.html
Rd-rx817
Top sprocket: Max. 11T/Min. 11T
Low sprocket: Max. 42T/Min. 40T
Total capacity: 31T
https://bike.shimano.com/en-EU/product/component/grx-di2/RD-RX817.html0 -
Brilliant. Thanks a lot mate.0