New Mavic Carbon Cosmic Clinchers 40C

Everything about building wheels, glueing tubs, etc.
drainyoo
Posts: 736
Joined: Sun Jun 17, 2007 6:56 pm

by drainyoo

poppiholla wrote:How do they perform in the wet?


I have never ridden in wet conditions, so I can't comment on their performance.

seanblurr
Posts: 309
Joined: Thu Sep 05, 2013 7:47 pm
Contact:

by seanblurr

Typical carbon performance in the wet with black prince pads. However, I just did 2 back to back rain Crits with them and they were manageable.
Instagram @seanblurr

by Weenie


RedRacer
Posts: 367
Joined: Sat Jan 21, 2006 6:13 pm

by RedRacer

Did Mavic ever release any aero data for this wheelset? Since they are not overly light (1545g) I would hope they are at least as aero as Zipp 303 FCs. My experience with aluminum Mavic clinchers is they are stiff and reliable so I expect these to be the same.

I am in the market for a set of light weight carbon clinchers with good aero and would like them to be as stiff and light as possible. I actually considered the Lightweight MEILENSTEIN clinchers since they are very light and supposed to be very stiff but they are only 20mm wide and kind of old tech so I am skeptical about their aero benefits, especially given the cost $$$$$$$. Thoughts?

The other wheels on my list are these new Mavic 40C, Reynolds 46 Aero clincher and maybe the '14 Zipp 303 FC.

drainyoo
Posts: 736
Joined: Sun Jun 17, 2007 6:56 pm

by drainyoo

From what I've read, the 40c are on the middle of the scale in terms aero. Mavic admitted that making them super aero wasn't a priority. Also keep in mind that rim tape isn't needed with these wheels, so you shed around 40g there compared to other wheels. Very small amount but still should be considered.

IchDien
Posts: 247
Joined: Mon Nov 05, 2012 12:23 am
Location: Veneto

by IchDien

I see there's now a steel hubbed version of these wheels available for cheaper?

drainyoo
Posts: 736
Joined: Sun Jun 17, 2007 6:56 pm

by drainyoo

Looks like you're right. The Cosmic Carbone 40 Elite. They have full aluminum hubs. Also, seems like they come with different skewers and no wheelbags.

andylav
Posts: 225
Joined: Wed Sep 19, 2007 11:45 am

by andylav

Alloy hubs but same claimed weight for the wheelset as the original, carbon hub version with a decent saving on comparative RRPs.

Wonder if this means a new, higher spec option might be on the cards - the 40C rims built with the hubs and spokes from the Cosmic SLR or CC Ultimate would be a wheelset that I would definitely be interested in.

IchDien
Posts: 247
Joined: Mon Nov 05, 2012 12:23 am
Location: Veneto

by IchDien

The higher end 40C mustn't have been selling well I suppose. Doesn't really make sense to come out with a cheaper practically similar version that weighs the same in the same profile?

IchDien
Posts: 247
Joined: Mon Nov 05, 2012 12:23 am
Location: Veneto

by IchDien

Any input, Zack?

wingguy
Posts: 3666
Joined: Thu Mar 08, 2012 11:43 pm

by wingguy

andylav wrote:Wonder if this means a new, higher spec option might be on the cards - the 40C rims built with the hubs and spokes from the Cosmic SLR or CC Ultimate would be a wheelset that I would definitely be interested in.


The CCU already has the new braking surface / resin that was developed for the C40, and I think they've updated the shape as well.

andylav
Posts: 225
Joined: Wed Sep 19, 2007 11:45 am

by andylav

wingguy wrote:The CCU already has the new braking surface / resin that was developed for the C40, and I think they've updated the shape as well.


I meant a new, higher end clincher wheel rather than a new CCU - a 40C Ultimate perhaps since they seem to have introduced a lower spec 40C Elite

wingguy
Posts: 3666
Joined: Thu Mar 08, 2012 11:43 pm

by wingguy

Oh yeah, I overlooked that small detail! :lol: :oops:

a20dth
Posts: 22
Joined: Mon Jun 15, 2015 9:28 pm

by a20dth

Hello, I'm interested in these wheels. Now I have Ksyrium SLE (1.495gr)

Is it a good option for race course and training? In the future I would like to set up with Veloflex clincher and latex tube Michelin.

Sorry for my english. I write from Spain (Europe)

poppiholla
Posts: 472
Joined: Wed Aug 03, 2011 1:18 pm

by poppiholla

A latex tube on a carbon clincher is in almost every case not a very good idea. On the other hand these Mavic 40c wheels have not a full carbon rim so the heath can probably dissipate more easily so that there is less danger for the latex tube to explode.

by Weenie


hull80n
Posts: 42
Joined: Fri Oct 18, 2013 3:57 pm

by hull80n

Expensive and Heavy... i prefer my lightweight :beerchug:

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