Campagnolo EKAR Pull Ratio

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VonPG
Posts: 24
Joined: Fri Apr 22, 2022 6:07 pm

by VonPG

After using my Caliper to measure ekar sprocket distance and cable pull distance I calculate the ekar pull ratio
each sprocket distance: 3.36mm
each cable pull distance: 2.42mm(Not too accurate, I may measure it again in the future)
Pull ratio for Campy Ekar ≈ 1.28
Not compatible with any other groupset.
(similar to sram 1.33? I am not sure)
Last edited by VonPG on Tue Nov 26, 2024 9:40 pm, edited 1 time in total.

by Weenie


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graeme_f_k
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Location: UK
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by graeme_f_k

VonPG wrote:
Mon May 01, 2023 3:23 pm
After using my Caliper to measure ekar sprocket distance and cable pull distance I calculate the ekar pull ratio
each sprocket distance: 3.36mm
each cable pull distance: 2.48mm(Not too accurate, I may measure it again in the future)
Pull ratio for Campy Ekar ≈ 1.35
Not compatible with any other groupset.
(similar to sram 1.33? I am not sure)
If you'd asked, we could have saved you a lot of trouble ...
A Tech-Reps work is never done ...
Head Tech, Campagnolo main UK ASC
Pls contact via velotechcycling"at"aim"dot"com, not PM, for a quicker answer. Thanks!

VonPG
Posts: 24
Joined: Fri Apr 22, 2022 6:07 pm

by VonPG

graeme_f_k wrote:
Tue May 02, 2023 1:15 am
VonPG wrote:
Mon May 01, 2023 3:23 pm
After using my Caliper to measure ekar sprocket distance and cable pull distance I calculate the ekar pull ratio
each sprocket distance: 3.36mm
each cable pull distance: 2.48mm(Not too accurate, I may measure it again in the future)
Pull ratio for Campy Ekar ≈ 1.35
Not compatible with any other groupset.
(similar to sram 1.33? I am not sure)
If you'd asked, we could have saved you a lot of trouble ...
Wow, do you have accurate data? I have searched a lot of information but they still lacks some groupset pull ratio
(https://www.mtb-news.de/forum/attachmen ... f.1415361/)
this is currently have the most complete information about pull ratio but still lacks some like cp ekar, cp new 11s+

JenShawn
Posts: 3
Joined: Fri May 12, 2023 9:35 am

by JenShawn

The pull ratio for Campy Ekar is approximately 1.35, which is not compatible with any other groupset and is similar to SRAM's 1.33 pull ratio. However, due to the inaccuracy of the cable pull measurement, it is recommended to measure it again for more accuracy.

VonPG
Posts: 24
Joined: Fri Apr 22, 2022 6:07 pm

by VonPG

VonPG wrote:
Mon May 01, 2023 3:23 pm
After using my Caliper to measure ekar sprocket distance and cable pull distance I calculate the ekar pull ratio
each sprocket distance: 3.36mm
each cable pull distance: 2.48mm(Not too accurate, I may measure it again in the future)
Pull ratio for Campy Ekar ≈ 1.28
Not compatible with any other groupset.
(similar to sram 1.33? I am not sure)

FreaK
Posts: 857
Joined: Sat Aug 27, 2005 5:57 am
Location: mOntreal

by FreaK

This feels like another reason to investigate the Growtac Equal levers. I really miss being able to mix and match stuff.
it's actually possible to come to the conclusion even before realising it makes no sense at all
-
tymon_tm

satanas
Posts: 545
Joined: Sat Jul 04, 2020 5:45 pm

by satanas

^ It remains to be seen whether the Growtac levers will be reliable and - if you want indexing - whether that works, and what will be supported. It seems like it'll be at least several months before we have any real idea how good or bad they might be, and IMO there are ergonomic questions too.

Vespasianus
Posts: 324
Joined: Thu Jun 11, 2020 10:15 pm

by Vespasianus

Anybody know if the SRAM 13 speed cassette would play nicey with EKAR? Lot more expensive but also lighter....
Too many bikes, too little time.

satanas
Posts: 545
Joined: Sat Jul 04, 2020 5:45 pm

by satanas

Vespasianus wrote:
Thu Nov 28, 2024 3:03 pm
Anybody know if the SRAM 13 speed cassette would play nicey with EKAR? Lot more expensive but also lighter....
Can't see it being possible. SRAM uses 12 speed spacing and fits the extra cog into the space made available by the thinner RD mount. Ekar uses <12 speed spacing and a narrower chain.

by Weenie


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