THM Clav SE cranks with eTap?

Discuss light weight issues concerning road bikes & parts.
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spdntrxi
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Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

Stick with SRAM chainrings ?
Praxis or Extralite rings ok?

Building an etap build .. done but would like to use my THM cranks and was wondering if there are any hang ups or issues I can avoid.

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prendrefeu
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by prendrefeu

Any rings.
Lighter x stiff = win.
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jimaizumi
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by jimaizumi

I have the SE's on my C60 and initially tried using the Extralite's but couldn't get the rings to bite when shifting to the big ring. The Praxis, while heavier, are stiffer and have given me no issues.
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KCookie
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by KCookie

I have the SE crank and agree that the praxis are far better at shifting over the Extralite rings i have on now. Only went for the Extralite as they look better and lighter.

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spdntrxi
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Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

I guess I'll stay with Praxis which is on on the cranks now... was wondering about extralite...but I'll stick with good shifting.


thanks all

moyboy
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by moyboy

That's the consensus too, extralite is lighter but praxis is on par for shifting with oem rings.

spdntrxi wrote:I guess I'll stay with Praxis which is on on the cranks now... was wondering about extralite...but I'll stick with good shifting.


thanks all

AZR3
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Location: Az USA

by AZR3

I have a set of Extralite Octaramp RC2 chainrings on my Hi Mod and I must be in the minority because they shift fine for me. I’ve read reviews from 4/5 years back saying the shifting was very bad but seems to have improved with the versions on sale now.

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prendrefeu
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by prendrefeu

You're not in the minority on that.
I've also found the KCNC K3 Cobweb to shift fine and not have flex issues that others reported.

To each their own.

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spdntrxi
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Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

dropped about 75g compared to eTap crank/BB setup. Using the praxis rings (not buzz).. so far the shifting seems legit on the stand. Adjusted to no grinding on the extremities so I'm happy. Lower screw is pretty far out, but not touching the cranks.

mdeth1313
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by mdeth1313

I went with the buzz rings on my clavicula cranks and have had zero shifting issues in over 5000 miles.
Speedplay is the devil!

Johnny Rad
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by Johnny Rad

spdntrxi wrote:dropped about 75g compared to eTap crank/BB setup.
Only 75g saved?!

My SRAM Red compact 50x34 crank came in at 569g. My Kogel BB86 PF BB is another 91g. Grand crank system total = 660g.

If true it's only a weight savings of ~75g, my wallet thanks you kindly!

spdntrxi
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by spdntrxi

Johnny Rad wrote:
spdntrxi wrote:dropped about 75g compared to eTap crank/BB setup.
Only 75g saved?!

My SRAM Red compact 50x34 crank came in at 569g. My Kogel BB86 PF BB is another 91g. Grand crank system total = 660g.

If true it's only a weight savings of ~75g, my wallet thanks you kindly!
Maybe my rings are heavy... or the bolts for the spider (KCNC).. if I add up the weights with the newer Praxis BUZZ rings, I should be over 120g saved. The THM BB weighs the same as your Kogel. I was in a hurry but it was not over 100g.

spdntrxi
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Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

mdeth1313 wrote:I went with the buzz rings on my clavicula cranks and have had zero shifting issues in over 5000 miles.
I'm thinking I should get those now... they look better then my older praxis rings anyways.

OHYONGUN
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Joined: Thu Dec 21, 2017 2:10 am

by OHYONGUN

The sram on the THM clavicula SE crank is strange. Praxis or Extra Lights are appropriate.

spdntrxi
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Joined: Sat Jul 20, 2013 6:11 pm

by spdntrxi

So far so good.. front is shifting beautifully. Praxis rings

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