THM-Clavicula SE

Discuss light weight issues concerning road bikes & parts.
minimini
Posts: 29
Joined: Tue Jan 26, 2010 1:14 am

by minimini

Today is got THM-Clavicula SE Crankset from STARBIKE !! (My friend's)

Very long long time wait (i think to last year december reservation)

Super Light weight .

Spec : 170mm / glossy / bcd110
Actual Weight : 283.99g
Driveside : 169.42g
Non-Driveside : 107.17g
Preload Cap : 4.48g
Attachments
01.jpg
Actual Weight : 283.99g
02.jpg
Non-Driveside : 107.17g
03.jpg
Driveside : 169.42g
04.jpg
Preload Cap : 4.48g
05.jpg
Spacer

MRM
Posts: 330
Joined: Sun Jun 14, 2015 8:15 pm

by MRM

Does it matter that Shimano and Campagnolo have switched to 4 contact points (the star that connects to the chain ring), but the THM Clavicula SE still has 5? Will that lead to issues down the road with chain rings etc? Also, there ought to be a reason for switching from 5 to 4. Would seem to make sense to implement that change here as well, wouldn't it?

Otherwise it looks and seems utterly amazing!

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wheelsONfire
Posts: 1811
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

Why would it?
There are many versions of 5 contact points. Just look at the new FSA K-force light using their own design.
It seems as 4 contact points, but there is a fifth at the crank arm.

If THM had used 4 contact points, what chainrings would you suggest people would use with it?
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MRM
Posts: 330
Joined: Sun Jun 14, 2015 8:15 pm

by MRM

Not finding fault. Was a genuine question. I love the look of the THM crank and may get it on the next bike if I can justify the expense with my conscience. :wink:

I was curious if the 4 point option had any advantage to the 5 point one; and why both Shimano and Campagnolo made the switch.

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wheelsONfire
Posts: 1811
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

MRM, i don't remember. But one thing might be, you need not decide of either of 110 or 130bcd . You can hook up what ever rings you prefer instead of being forced using either compact or standard bcd. This is same with FSA K-force.
Stripped of rings K-force light BB 386 EVO is 410 grams (172.5mm version).
If i am correct, the typical 5 contact point cranks are still requiring either compact or standard.
I weighted for instance, K-force in both 52/36 and 53/39. The latter is 25 grams more heavy and the first was 560 grams.
So if you buy Clavicula SE, you can get a much lighter set. I know THM recommends Praxis due to many light weight chainrings lesser shifting quality.
Bikes:

Ax Lightness Vial EVO D
Paduano Racing Fidia
Open *UP*
https://opencycle.com/showcase/the-xplo ... eelsonfire

MRM
Posts: 330
Joined: Sun Jun 14, 2015 8:15 pm

by MRM

Thanks wheelsONfire. :)

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Daddy yo yo
Posts: 313
Joined: Thu Nov 30, 2006 7:17 am

by Daddy yo yo

@minimini: what frame does this crankset go on? can you post pics as soon as you have attached chainrings and bolts, please? and maybe one more including the bottom bracket... thanks!
My contribution to more beautiful roads: - old - / - new -

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F45
Posts: 869
Joined: Wed Jun 08, 2011 6:08 am

by F45

Thanks for those weights. That is a beautiful piece of workmanship.

For comparison, my Red 22 BB30 cranks 175mm were 370 grams without rings (same config as yours is shown).

jano
Posts: 140
Joined: Sun Oct 21, 2012 8:15 pm

by jano

Only 90 grams heavier and 30% of the price, one of the best deals in terms of crank sets.

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wheelsONfire
Posts: 1811
Joined: Mon Jul 07, 2014 8:15 am
Location: NorthEU

by wheelsONfire

Want the most extreme, the price is also the most extreme :mrgreen:
Bikes:

Ax Lightness Vial EVO D
Paduano Racing Fidia
Open *UP*
https://opencycle.com/showcase/the-xplo ... eelsonfire

mnmasotto
Posts: 624
Joined: Mon Jun 06, 2011 7:16 pm
Location: Irvine, CA

by mnmasotto

For Weight Weenies, 90 grams is a lot!

jano
Posts: 140
Joined: Sun Oct 21, 2012 8:15 pm

by jano

700 Euros are also a lot, for 90 grams.
Anyway, if money was no object then I wouldn't think twice either! :-))

Bely
Posts: 824
Joined: Fri Mar 15, 2013 11:55 am

by Bely

Does anyone know where I can get my hands on a set of this? 170mm?


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prendrefeu
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by prendrefeu

Starbike, the shop that hosts this forum, as them.
Exp001 || Other projects in the works.

Bely
Posts: 824
Joined: Fri Mar 15, 2013 11:55 am

by Bely

Just dropped them an email! Let's keep our fingers crossed for a favourable reply...


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The Harem
Speedvagen | Argonaut 2.0 | Cherubim (S) | Mosaic RT-1 | Festka Scalatore | Pegoretti Responsorium Ciavete | Wilier Cento10Air Ramato | Time VXRS

Incoming
English | Field

Ex's:
Factor | Field | Baum | Stinner | F10 | Trek Madone 9

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