Sram/Shimano 12-speed cassette spacing compatibility?

Discuss light weight issues concerning mountain bikes & parts.

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NickJHP
Posts: 118
Joined: Wed Feb 14, 2018 2:22 am

by NickJHP

Does anyone know if the recently announced Shimano 12-speed XTR cassettes will use the same spacing as the SRAM 12-speed? With 11-speed, you can mix and match with impunity - I have a couple of bikes using SRAM shifters/derailleurs and Shimano 11-speed cassettes.
Last edited by NickJHP on Tue Aug 07, 2018 4:03 am, edited 1 time in total.

by Weenie


TurboKoo
Posts: 475
Joined: Wed Oct 29, 2008 7:55 pm

by TurboKoo

I have measured them and they are not the same.
Unfortunately I cannot remember numbers on the top of my head.
Scott Foil
Shimano 9150
Shimano FCR-9100-P
Shimano C60 tubulars

ooo
Posts: 601
Joined: Sat May 21, 2016 12:59 pm

by ooo

numbers need some confirmation

12s shimano 3.55 mm
12s sram 3.65 mm

when cassettes aligned by first cog, mixing accuracy 0..+1mm
when cassettes aligned by middle cog, mixing accuracy -0.5..+0.5mm

Image
'

TurboKoo
Posts: 475
Joined: Wed Oct 29, 2008 7:55 pm

by TurboKoo

Thanks OOO

Now that I see the numbers again I recognize them.
Scott Foil
Shimano 9150
Shimano FCR-9100-P
Shimano C60 tubulars

GlacialPace
Posts: 45
Joined: Mon Jul 30, 2018 12:37 am

by GlacialPace

That's a shame, it's always been good to know that they were the same, still it's probably choose enough to make it work?

ooo
Posts: 601
Joined: Sat May 21, 2016 12:59 pm

by ooo

You can test quality of "0.5mm offcenter shifting" on your current bike by adjusting cable tension or changing di2 setup by +-3 steps of microadjustment steps

Anyone know Campagnolo 12-speed cassette rear cog spacing (center-to-center)?
'

vanmatthew
Posts: 37
Joined: Thu Jul 14, 2016 5:20 am

by vanmatthew

Interesting thanks. XTR 12 speed has not been released yet right?

by Weenie


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