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Item # RCF003F

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  • Carbon/Silver, 170mm/30t ($485.95)
  • Carbon/Silver, 175mm/30t ($485.95)
  • Carbon/Silver, 170mm/32t ($485.95)
  • Carbon/Silver, 175mm/32t ($485.95)
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Item # RCF003F

The stuff of dreams.

Rather than deciding to leave its top-of-the-line Next SL alone for a few years, Race Face returned to the drawing board quickly for the design, setting ambitious, but unsurprising goals to eliminate weight and improve lateral stiffness on what's now known as the Next SL G4 Crankset. By trying to surpass a design few could find fault with, the G4 is definitely dreaming big, but with a few changes, Race Face managed to shave 20g off of the G4 compared to the Next SL.

Race Face began by slightly reshaping the G4's crank arms, continuing to use its effective hollow carbon construction but tweaking the design in search of yet more weight loss. In doing this, it managed to shave 6g from each of the svelte arms without compromising any of their strength. Race Face was particularly concerned with the amount of tension that the chain would exert on the crankset due to the chain line angles of a one-by setup, so it upgraded the spline to an alloy that's a claimed 20% stronger than 7050 aluminum. To offset the weight that this could've added to the setup, it then CNC'd the end of the 30mm spindle, removing unnecessary material and saving four more grams in the process.

We're attaching these crank arms to Race Face's Narrow Wide Cinch Direct Mount Chainring. Regardless of the size you choose, this ring's tenacious chain retention make it almost more valuable than the stiffness and low weight of the crank arms themselves. Almost. The direct-mount design is a lighter, stiffer interface than the old ring/spider/arm design, and it plays the role of babysitter by keeping the chain from jumping around like an unruly adolescent trying to avoid bed time.

Tech Specs

Arm Material:
carbon fiber
Arm Length:
170 mm, 175 mm
Chainring Sizes:
30 t, 32 t, 34 t
Bolt Circle Diameter:
direct-mount
Rings:
1
Spindle:
30mm
Claimed Weight:
[32t direct mount, without BB] 430 g
Recommended Use:
cross country, trail
Manufacturer Warranty:
3 years

Reviews & Community

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Avg. ride time: 4h 39m per week
  • Average ride time is based on Strava activity over the last 3 months. Give your reviews credibility by connecting your account.

Creme de la creme of Cranksets

  • Familiarity: I've put it through the wringer

There's a classic saying when it comes to bikes: light, strong, cheap; pick two. Pretty sure you can figure out which ones it falls under. I'm running the 175mm length on my large SB5.5 with a 34t direct mount chainring.

These are incredibly light. Sort of makes me worry about durability, but I haven't had any sort of issue with them and have already had a few hefty pedal strikes with them.

Set up was a Cinch! Get it? All jokes aside (ok I'll explain - Raceface cranksets generally use their Cinch Bottom Bracket), this was seriously easy to set up once you have the bottom bracket installed.

Sorta wish I picked up the Turquoise to match my Yeti, but c'est la vie it still looks rad!

They are spendy, but are a great upgrade if you're looking to shave some weight. Give me a shout at my direct line 801.204.4547 or cojohnson@backcountry.com if you have any questions on these cranks or if you need help getting the right bottom bracket for your bike!

Creme de la creme of Cranksets

Fancy

  • Familiarity: I've used it once or twice and have initial impressions

No doubt these are the ultimate "treat yoself" item. Necessary? Not really. Baller upgrade to make your already incredible bike even more incredible? Yup definitely. It's pretty well known the weight can't be beat. I just recently got mine, but I decided to take the plunge because I've been impressed with how durable these have proven to be for friends despite the crazy weight. Granted this is the new G4 version, but looking forward to putting the to the test myself this season. Thus far they are noticeably fancy looking and feel super stiff.

Is this crankset next compatible with the eagle transmision 1x12?

Yes, Race Face states the direct mount ring on this crankset is compatible with 9, 10, 11, and 12 speed drivetrain systems. The SRAM X-SYNC Eagle rings are optimized for 12 speed, so they will offer a slight advantage (chain retention, efficiency), but there won't be any trouble using Race Face rings with the Eagle system.