OT: Cranks: 46/34 or 44/34 for cx?

[Eric Altendorf]

Anyone ever seen cross cranks with a 34 tooth small ring?  I'm looking for a 46/34 or 44/34.  I dig my small gears; they let me ride some runups that others have to dismount for.

Most of the cross cranks I see are 46/36 or 48/38.  These days so many of the cranks don't allow nonstandard ring sizes I'm hesitant to try to buy one of those and swap the small ring.

I've been running a normal compact 50/34, but (a) I think a smaller gap would be better and (b) my current cranks are campy UT and god those bearing seals suck in the wet.

eric

[Viet-Trung Luu]

I thought that cross cranksets were mostly/all just normal compact cranksets with different chainrings, in which case installing a 34t should be just fine (apart from some slight degradation in shifting due to the larger jump and unmatched pins/ramps.

Incidentally, Wickwerks has 44t/34t sets: https://wickwerks.com/product-category/chainrings/cyclocross-chainrings/.

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[Eric Altendorf]

Lots of cranks these days have weird custom rings, it seems.

[Carlin Eng]

A lot of aftermarket chainrings are just standard 110 BCD. The Shimano CX70/CX50 cranksets (their cross specific model) are also standard 110 BCD, but I think they only come in 46/36. It'd be pretty easy to buy the Wickwerks set Trung listed and just put them on whatever compact crankset you have. I'm running a SRAM Force compact crankset with Shimano CX70 46/36 rings and it works perfectly.

I don't know of any full cranksets that come spec'd with 44/34 rings.

[Eric Altendorf]

Hmm, ok.  I know my recent campy cranks definitely don't take non-campy rings, or even campy rings from 6+ years ago (they do something weird with the countersink for the 5th bolt hole that is integrated in to the crank arm nowadays) and most of the recent shimano cranks I've seen at least *look* like they have some custom crankarm integration (although looking at the CX70, it looks pretty standard).

Wickwerks has a 34/44 pair.  Ooh, it's on sale for only $126.  :P

eric

[Viet-Trung Luu]

I didn't even think of Campy. The new 11-speed groups are full of sadness: Shimano with their oddball 4-bolt pattern, and SRAM with a less-obviously nonstandard 5-bolt pattern. FFFFUUUUUUUU.

[Jason Thorpe]

46/34 is pretty common these days, although I have 46/36 (equally common).

-- thorpej

Sent from my iPhone.

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[Eric Altendorf]

What cranks do you know that come 46/34?  Its hard for me to justify buying rings alone; they cost as much as a used crankset w rings....

[Jason Thorpe]

Pretty sure 1T's Ridley has an FSA crank in such a configuration.

-- thorpej

Sent from my iPhone.

[Nat Futterman]

My FSA cross big ring is printed something like 46/36(34) indicating its shifting ramps/pins are supposed to work with either. It came with a 36, though, which I also don't care for.

I race on a single 42t ring, but I sympathize as I want low-ass gears for the rest of the year (with an 11-32 cassette) for when I more or less treat my cross bike as a mountain bike.

[Eric Altendorf]

Just checked -- seems FSA's cranks are sold 46/36 like everyone else's.

Maybe I want a dual MTB crankset. :)