Xiamen Carbon Speed 2025 new carbon crankset

[PeterXu]

Sorry, last topic I made seems doesn't work fine. So this is new one.

Attachments are our newest carbon crankset which would be released after Chinese New Year holiday. 165mm size is under testing, 325+/-5g/ set including 29mm DUB 7075 aluminum spindle, 24mm titanium spindle would be availlable as well.

[HanzJWermhat]

What is the interface to the spider?

If it’s 3 bolt, NICE! I can use my Magene PM. I passed on some frames because of BB86 and lack of carbon cranks with 24mm spindles that had 3 bolt interfaces. Titanium spindle makes that build much more do-able. Still might be interested in the DUB now that I have a T47 frame coming

[PeterXu]

What is the interface to the spider?

If it’s 3 bolt, NICE! I can use my Magene PM. I passed on some frames because of BB86 and lack of carbon cranks with 24mm spindles that had 3 bolt interfaces. Titanium spindle makes that build much more do-able. Still might be interested in the DUB now that I have a T47 frame coming

Easton style. There might be patent problem on 3 bolts design that is why we don't do bolts version.

[neobiker]

Do you have any price for the 24mm titanium version?

[PeterXu]

Do you have any price for the 24mm titanium version?

No yet. 24mm titanium version won't be available until March or early April.

[toxin]

What's the alu price? Q-factor? any stiffness test comparisons against the competition?

[Sakizashi]

Interesting!

Is the spindle swappable for different lengths? Is it compatible with the Easton spindles?

[toxin]

the spindle-crank interface looks identical to cybrei, the arms are different, so no and yes.

Like the cranks arms actually, there were complaints about clearance issues with the straight arms like elilee and cybrei

[Icyseanfitz]

Looks great, would be interested in a 24mm titanium version.

[Sakizashi]

the spindle-crank interface looks identical to cybrei, the arms are different, so no and yes.

Like the cranks arms actually, there were complaints about clearance issues with the straight arms like elilee and cybrei

Ah yes, I realized looking at it that the preload collar threads are on the spindle vs. on the crank. I sure hope they are swappable though, would be nice to be able to get different lengths for gravel setups etc.

[neobiker]

I got some pictures from the preproduction models. Weight should remain the same for production.

https://photos.app.goo.gl/N8YueX3CwPc6cgfh7

[TidyDinosaur]

I got some pictures from the preproduction models. Weight should remain the same for production.

https://photos.app.goo.gl/N8YueX3CwPc6cgfh7

Looks good, but too bad they won't do 3-bolt interface though... There are already a lot cranks that look the same as these, but none 24mm and 3 bolt

[RDY]

@PeterXu do the factory and designers making this have experience making big brand or Chinese brand thermoplastic cranks? 

SRAM had early problems with delaminating inserts and a few cracks.  Easton had a lot of issues early on, and still some now.  Various cheap Chinese ones have had the same.  Quality Chinese ones from Incolor and Elilee both had extensive issues initially.

I.E. If the factory and designers have experience, we might expect the launch product to work fine.  If not ... I think it may be a mess.

[toxin]

considering the crank-to-arm interfaces are a 1-to-1 Cybrei copy (probably from the same machine shop), I expect there's probably some other Cybrei sauce in there too