Just wondering about moving to XX1 cranks, but i’ve never had CF cranks before! Anyone broken them? Or worn through them or something silly?

(usage would be AM rather than DH, but including some relatively serious alpine techy trails etc)

No XX1 expereince, but I’m running carbon SL-K cranks on my Genius.
crank end bumpers like raceface have would have been great, but I’ve bashed them enough now that I dont worry about the cosmetic damage
Having happily run carbon frames, bars, posts for years, I’m not at all worried about breakage.

Max – Yeah, as it happens I was working today and a poor sod on his lovely XX1 equipped Spicy had literally broken the pedal off the drive-side crank arm. The pedal was still attached to the shoe and basically the threaded insert and a chunk around it had detached from the arm. Warranty for sure and the first one I’ve seen or heard of, but concerning nonetheless…Must have been a beast of a man, with pistons to match! 🙂

was it the crank, or was the pedal loose?

ive got 2x sets, 1x set is a year old and has plenty of rock strike marks on – i wouldn’t worry

What do we think then, any more likely to get damaged than say a set of normal XT HT2 cranks?

I’ve got a oneup 24t dinnerplate on order, and i can’t decide if i should take the weight saving from going pukka xx1 crank + 32t or just go ghetto with a narrow/wide ring for my existing XT crankset??

You could try and pick up an OEM pair of X01 – they’re metal. Not sure if XX1 cranks are the same?

seen a few snapped X0 crank arms….still use one on my dh bike.

You will save about 100g with XX1 GXP over XT or 60g with X01

hmm, not a lot then. Might go ghetto first then 😉

Probably not the most accurate but..

bit more searching puts an XT double at 725g (no bb I reckon)
I’d be looking at the Race Face Next SL too, they are a beautiful thing and very light!!

XT crank arms are about 600g without bb bolts are 20g ring is 50g BB 90g

http://www.sicklines.com/weights/crankarms

I’ve pulled the threaded pedal insert out of three Truvativ Noir cranks and the splined crank insert out of another one.
Same manufacturer, but I don’t know if the process differs and XX1 inserts are better bonded.
I wouldn’t chance it.

Interesting thanks chaps! I guess one advantage of the XX1s is being able to change the ring without pulling the cranks out of the frame, but that’s not really that useful is it?

Yes i currently swap between a 30t and 34t depending where im going. Im a heavy lump and have had no issues with my cranks.

Wish XX1 had the bumpers… took a huge chunk out of mine when I got a drop-off wrong.
Still work fine though.
All in all… I think cranks arms should probably be metal.

I use the race face bumpers on my xx1 , fit like a glove….. 😈

the_lecht_rocks – Member
I use the race face bumpers on my xx1 , fit like a glove….. 😈

me too… happy days

seen a few snapped X0 crank arms….still use one on my dh bike.

Yep, there a few pics floating around the web of people damaging X0 in various ways. I think they tend to be porkers coming up short on some fairly sizeable DH jumps rather than JRA’s so I wouldn’t worry.

Personally I’d have no qualms about a carbon crank and ride a FSA K-Force for XC riding.

X0/ XX1/ XO1/ S-2200 (OE) are all the same crank with different graphics and different spiders. I’d get whatever is cheapest and go with a direct mount ring (even if buying XX1) for a cleaner look and lighter chainset.

Snapped the pedal off a drive side xx1 (same as above) at the puffer earlier after landing a small drop. Lucky to ride away unscathed. Even more lucky they were a mate’s! I wouldn’t trust them personally…

I’ve run XO’s for two years. Specialized BB height and BC trails. No issues.

My two to three year old XX cranks developed a problem. The spider started to unbond from the cranks so the cranks started to contact the swing arm under load. Seeing it was a carbon swing arm I replaced them with some Turbine cranks (XX ring compatible). Great cranks, nice and stiff – until they started to unbond.

My x0’s died on me three weekends ago at Aston Hill.
First drop on Surface to Air which is probably knee height, landed and woah – no peddle!
Escapes unharmed.
Friend broke his in a crash…
both replaced them. Saints for me now.

On my phone right now but have a number of photos i could post after the weekend.

I’d get whatever is cheapest and go with a direct mount ring (even if buying XX1) for a cleaner look and lighter chainset.

This.

My two to three year old XX cranks developed a problem. The spider started to unbond from the cranks

That’s weird – surely they’re 1 piece on XX cranks? Do you mean they cracked?