[jeffgre_6163]

There is not much in the MTB media about this and nothing I could find on the SRAM web site so to enlighten those thinking of purchasing a new bike that comes standard with X01 you need to be aware that X01 cranks as fitted to new bikes [OEM] are not the same as X01 cranks purchased aftermarket.
The OEM cranks are alloy where as the aftermarket are carbon.
The bike pictured is a 2014 Norco Sight 7.1 carbon.
After much digging and pre release research on the bike I found a small mention in a pre release test on pink bike that mentioned the difference in the cranks. Not happy that my new bike would have alloy cranks I pre purchased a set of X01 carbon prior to getting the bike.
Today I swapped them out.
Weight difference = 80 grams
So what you may say? 80 grams equals 1/2 an average piss beside the trail but I must confess to being one who likes bling on my bike and alloy just would not be cool on a carbon bike : )
From what I understand the currently labelled X01 alloy cranks will actually be marketed as X9 next year

 

[customfab]

It should be noted that bike manufactures have their choice of cranks, and that not all XO1 OE cranks will be the aluminum version.

 

[Varaxis]

Carbon XO is 80g lighter even with that boot on it? No need to put a boot that alloy one, right? Boots weighs what, 16.5g for a pair?

This thread devalued those carbon cranks a bit: http://forums.mtbr.com/sram/broken-xo-crank-831123.html

 

[jeffgre_6163]

It should be noted that bike manufactures have their choice of cranks, and that not all XO1 OE cranks will be the aluminum version.

I have read that carbon X01 will not be available to manufactures as OEM. Alloy only if they want to fit X01

 

[deanopatoni]

The alloy cranks are being marketed as X1. Sram now have a page for it here http://www.sram.com/sram/mountain/products/sram-x1-hollow-forged-crankset

Deano

 

[tadmcmichael]

SRAM says there is 145 grams difference between the XO1 carbon cranks and the new X1 cranks they released earlier this week. I have the OEM XO1 alloy cranks (which look like the new X1) on my Mach 6. Was considering an upgrade to carbon for weight, but sounds like I would only drop 80 grams if I am reading this correctly? And I would want to run boots anyway, so I am down to even less than that. If that is the case, I will stick with the alloy ones because I like the durability. How much weight would I drop with a direct mount chainring?

 

[deanopatoni]

Carbon XO is 80g lighter even with that boot on it? No need to put a boot that alloy one, right? Boots weighs what, 16.5g for a pair?

This thread devalued those carbon cranks a bit: http://forums.mtbr.com/sram/broken-xo-crank-831123.html

The worst of it now is that I am left with a £65 chainring that does not fit anything but Sram cranks :madman: as ChainReaction.Con will only replace the broken crankset and not the chainring that I bought from them at the same time.

UPDATE AND EDIT:
I emailed SRAM and got an instant response that they would be in touch with CRC regarding my issue. :thumbsup: AMAZING SRAM CUSTOMER SERIVCE.

Also had a further response from CRC, saying that as a 'gesture of good will' they will give be vouchers to the value of the chainring. :thumbsup: AMAZING CHAINREACTION CUSTOMER SERIVCE (just took them a while to come around to my predicament).

 

[Betzel]

Not totaly comparable (because of direct mount chainring) but my own measurements only save 45grams. Of course there is no spider on the X1/X01/S1400 crank. So 80grams in original set up between carbon and alu crank sounds fair.

SRAM Kurbelgarnitur XX1 175mm, 32Z - Gewicht von Teilen auf der Waage - MTB-News.de

SRAM Kurbelgarnitur S1400 mit 26T Wolftooth direct mount GXP 175mm - Gewicht von Teilen auf der Waage - MTB-News.de

 

[MudBike]

Just had my XX1 drive side pedal insert delaminate. I had creak I was tracking down for the last month. One of the last things I did was clean and re-grease the pedal bearings and grease the threads before reinstalling. After my last ride I finally realized the creak was from the pedal insert moving within the crank arm. I could move the outside edge of the pedal up and down about 1/4". Good thing it did not break apart and cause a serious crash. I dropped the crankset off at the LBS today for warranty replacement. Thinking about replacing the XX1 crankset with X9/X1.

 

[deanopatoni]

Just had my XX1 drive side pedal insert delaminate.........I dropped the crankset off at the LBS today for warranty replacement. Thinking about replacing the XX1 crankset with X9/X1.

After my carbon crank delaminated I was hoping to get a Sram X1 to replace it, but at the time none were available. I think for the weight difference aluminium give me a lot more assurance that it's not going to fall apart.

I weight 72kgs (167lbs) and had the crank on a 140mm travel Turner.

Deano