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Item # RCF001R
Are you surprised that Race Face just released the world's lightest DH-rated production crankset? You shouldn't be. The British Columbia-based company has been known for pushing the limits of what materials can do, so riders can push the limits of what they can do, and in the case of the Race Face SIXC Crank Arms, everyone wins as a result.
Made in-house of ultra-high-density unidirectional carbon fiber, and formed with a proprietary hollow-molding process, the SIXC's arms are like Bruce Lee's: there are bigger ones out there, but virtually none that are stronger. The crank is based on the company's Cinch interface, which allows for the installation of both direct-mount Race Face chainrings in a huge range of available sizes, or a four-bolt spider for the installation of any others. The modular 30mm spindle interface means you can swap out the standard 68/73mm spindle for a DH-ready 83mm one, both of which are made of RF's own "super alloy" that's 20% stronger than the 7050-series alloy most commonly used in crank spindles.
The Race Face SIXC Crank Arms are available in the color Black and in 165mm, 170mm, and 175mm lengths. The arms come standard with the 68/73mm spindle. They do not include and chainrings, spiders, or the necessary Race Face Cinch bottom bracket, which is available for several different bottom bracket platforms.
set these up on my custom Mach 5.5 build this year. I love the carbon look of these, paired with some Race Face crank boots and I'm all set to rip around the trails this summer.
This crank-set comes with internal 68/73mm spindle
Considering buying these cranks.
Which raceface spindle does this crank set include?
Would be helpful with determining chain-line and q factor from the information provided here> http://www.raceface.com/comp/inst/Crank_Q-factors_and_chainlines.pdf
Thx!
Hi Luke, just bought these myself and had the same conundrum. If you read the second sentence of the third paragraph it tells you which spindle. This one is 68/73. Hope this helps.
Cheers
So far no issues with these. They're on my DH bike but weigh little enough for your am bike as well. I paired them with the race face crank boots for some extra protection and so far they are still in great shape. Wish you could get a King Bottom bracket for them but that's about my only gripe.
Yes you can, Ive got the king threadfit 30 in there now. :)
Chris king makes a 30 mm B.B. that will work with these currently running one check them out
How do these compare to the RaceFace SL cranks? I was looking to get those for my Trek Farley
Hi, I want to know if the shaft size is 83mm
tin105974991,
This particular SKU is for the 68/73mm version of the SIXc cranks. Here's a link to the 83mm spindle version:
http://www.backcountry.com/race-face-sixc-crank-arms-83mm-spindle?ti=U2VhcmNoIFJlc3VsdHM6c2l4YzoxOjQ6c2l4Yw&skid=RCF001Q-BK-S165MM
32T Race Face Next SL ring mounted up. CLEAN!
Where to start...the RF SIXc cranks are awesome! They're burly enough to hold up to full on DH riding but come in at a weight that rivals that of many carbon XC cranks, partly due to the direct-mount chainring setup. If direct-mount rings aren't your cup of tea, however, RF also makes a direct-mount spider, making the SIXc cranks incredibly versatile. Installing the chain ring is a cinch, simply using a Shimano/ISIS bottom bracket tool (Park Tool# PAR0063).
It's worth noting that the cranks come with the rubber crank boots (black) to protect them from jealous rocks. Unless you want to spice it up with a different color, save the money you were going to spend on the crank boots and take your muse on a date to somewhere fancy like Applebee's.
As of 2017 you now can get a king 30mm thread fit BB that will work