BigRock carbon crankset with 24mm titanium spindle

[kubackje]

So pulled a trigger on this setup. Waiting for them to be delivered.

Bigrock carbon crankset that I will pair with xcadey power meter and my stone chainrings (same as cybrei on the photo).

I think those are the best looking crankset on the market right now. What I also really like is the solid construction of the spindle. I am willing to sacrifice some weight savings for that. Cranksets alone are around 350g. Another thing I like is more classic q factor of 145mm (146mm measured and confirmed by one of the users here). Most of those Chinese carbon cranks are +150mm.

I paid 190$ for the cransket and 220$ for the power meter with the use of AliExpress coupons.

Feel free to discuss and post your experience with those cransets.

[raisinberry777]

Looks good and competitive weight with power meter. Is it old SRAM 3-bolt for the spider?

[Blablablaomfg]

look forward to your review, been seeing them a lot on XHS but there were comments on the tightness of the axle and the need for spaces for it to work on some frames. but the price and specs are really tempting.

[ice29]

Thanks for making the thread here
I also have this crankset and I had to experiment a bit with the spacers on my Aethos, will check what I put on and report here…

Have you measured the Q factor? They officially say it’s 140mm, which sounds a bit low, so not sure I can believe that. But the cranks feel a bit narrower, or maybe it’s the fact that the crankarms are pretty straight. I have pronating feet and have a feeling that I hit these crankarms with my ankles much more than on Sram Dub cranksets… (I actualy prefer wider Q factor, so might have issues with these in the long run if they really are narrow)

[kubackje]

Advertised q factor is 145mm, but in the Lexon thread Verti reported that he measured it at 146mm. The spindle length is 92mm. When they arrive I will install, test and report it here. I have their handlebarb and it's top quality so pretty sure cranksets will be good. Joe from Panda Podium likes this brand so that gives me confidence.

[ice29]

Where did you see it advertised as 145mm? I only saw this specs in the aliexpress seller's pics, but with 140mm

[gbrnole]

just quickly install the left crank arm rotated 180 degrees and measure outside to outside distance between the crank arms. q-factor mystery solved.

[ice29]

lol, stupid me, you are right haha

[kubackje]

Where did you see it advertised as 145mm? I only saw this specs in the aliexpress seller's pics, but with 140mm

This was written in lexon thread. Those AliExpress auctions are a mess. I also remember seeing 140 and now when I enter this auctions it says 146mm so they corrected it.

[ice29]

I have a feeling that my spider is not 100% straight and the chainrings "wobble" a bit... I planned to replace it with a PM anyway but bought the new Favero pedals, so now I am stuck with it, so most likely have to find a replacement (would not mind a nicer one, but haven't seen any spider for 3 bolt that would look nice with Shimano rings)

[glepore]

Looks good and competitive weight with power meter. Is it old SRAM 3-bolt for the spider?

Yes. I looked at these as I have a couple Quarq's but they're only 35g or so lighter than Force/Quarq carbon arms which are usually available for under $100 usd used. The 165's are hard to find, but they're out there. So unless you need 160's its a lot of coin for an unproven crank.

[gbrnole]

Yes. I looked at these as I have a couple Quarq's but they're only 35g or so lighter than Force/Quarq carbon arms which are usually available for under $100 usd used. The 165's are hard to find, but they're out there. So unless you need 160's its a lot of coin for an unproven crank.

they're 108g lighter if you're comparing apples for apples (24mm Ti spindle vs 24mm steel GXP).

[glepore]

Yeah, stand corrected.

[Evaso_CC]

I have seen comments elsewhere that claim the crank tightening bolt is too soft for the recommended torque. Any experience with this? What is the recommended torque?

[gbrnole]

I have seen comments elsewhere that claim the crank tightening bolt is too soft for the recommended torque. Any experience with this? What is the recommended torque?

have you seen those comments specific to this crank or are you referring to comments on another brand in another thread?