Short GRX Compatible Cranksets

[matt14]

Hi all,

Has anyone found any GRX compatible cranksets/chainsets (using the 2.5mm wider chainline) that come in 165mm long crank arms? Would like to use something lighter than the GRX600 series.

Current options:

• Rotor make an offset axle system for their Adhlu/Vegast systems
  
• Praxis Works Zayante/Alba GR
  

what else is out there?

Thanks

[Rapac]

New force/red E1 wide with a spider and whatever chainring you would like 🙂‍↕️

[everett]

Praxis doon-gr is the lightest option I found.

[lkip]

I can't understand why none of the carbon cranks have the possibility to fit 110/80 bcd chainrings, possibly with a different offset to have the same chainline as the GRX 2x crankset. It should be pretty easy to produce a easton to 110/80 spider but as far as I know something like this doesn't exits.

[benno_r]

I just built a Carbonda 707CFR with GRX out back and 165mm SRAM Force Wide Cranks up front. Obvioulsy not compatible with a GRX bottom bracket, used a Wolf Tooth Dub instead.

[perneto]

I got the Goldix crankset with 24mm steel axle for a GRX 2x build. The Aliexpress listing says it has a 48mm chainline. In comparison with a Senicx PR3 I have, it is noticeably wider so 48mm seems right. Unfortunately the Goldix cranks are very flat, and so they touch the top of the GRX front derailleur (braze-on FD-RX810) on my frame.
I tried using a 2mm spacer, but I think that's too much for the FD.

I'm now looking at the Senicx GR3. On the official website there's a version that's officially 2x with the desired 47.5mm chainline: https://senicxtech.com/portfolio/gr3-b1/
On AliExpress I can only find 1x versions of the GR3, where the stated chainline is 49.7mm. But I suspect the cranks may be identical, and the difference in stated chainline may be because it's measured on the outer ring position for 1x, while it's measured between rings for 2x. What do you think?
I believe this is the same for Shimano GRX 1x vs 2x cranksets: identical, but 47.5mm vs 49.7mm stated chainline s.

I also came across this Wuzei carbon crankset with a strange 52mm chainline for a 2x : I just found this on AliExpress:
https://a.aliexpress.com/_EzY1xHw

[Blueberry]

I maybe missing something but can't you just use any chinese carbon crank (that offers a 24mm spindle) with an offset chainring or spider? my gravel bike is using a regular Rotor Aldhu carbon crank with a 3mm offset PQ DM chainring.

[perneto]

Personally I'm using a power meter spider and 2x, so I can't do that. Also, aren't offset chainrings used to bring the chainline closer to the frame, rather than away from it?

[Blueberry]

Rotor's NS24 crankset is supposed to be GRX compatible but it's only 20-30g lighter I think. Unfortunately I'm not aware of any chinese ones with the same spacing as GRX.

[lkip]

Cane creek makes an offset spider for 110/80 bcd,
it's fpr their eewings crankset but maybe it can work also with carbon cranksets
It's expensive and only compatible with 3bolt or 8 bolt interface though

https://www.canecreek.com/products/chainring-spider?srsltid=AfmBOorUEmu96aPEvEu65FCQfKKOtg2adactGSSuZZe2Hm25SfgTaofm