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SRAM
XX1 BB30 Crankarms - 168 Q-Factor

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The perfect fit.

Given the immediate acclaim that SRAM's XX1 group set has received, it's not surprising that SRAM is focused on improvement rather than replacement. However, you're probably wondering how this is even possible with XX1? Well, given XX1's wide array of possible chainring, Q-Factor, and bottom bracket options, SRAM opted to provide the crankarms without a ring, leaving your gearing, fit, and bottom bracket completely up to you. So, while the XX1 BB30 Crankarms with 168 Q-Factor might be for a very specific customer, SRAM will spare no expense to ensure that your ride is perfect.


Carbon fiber arms have been mated to a redesigned aluminum spider for a lightweight crank arm that doesn't require a finessing of parts in order to make an optimal single-ring setup. The X-SYNC chainring is designed for maximum chain control, with each tooth being CNC-machined in order to support the chain's inner- and outer-links. This machining process provides a variable thickness from tooth-to-tooth, so the chain and chainring essentially lock together as you pedal. However, the locking of the two doesn't inhibit pedal efficiency, and it eliminates the commonplace ailments associated with running a single-ring up front. Additionally, this system provides you with a liberation from chain guides. SRAM even went as far as to say that you have a better chance of dropping your chain with a front derailleur than you do with the XX1 crank and chain combo.


The new chainring's 76 bolt circle diameter sets it apart from others in the SRAM catalog. This diameter emanated from a functionality standpoint, not as an afterthought of the new, universal spider shape. Its design makes it simple to remove the chainring for either maintenance or ratio changes. Gone are the days of finagling the chainring off of the spider -- just unscrew the bolts, move the chainring off, and you'll have the replacement on in minutes. Even better, SRAM has created six different chainring sizes that are compatible with the XX1 spider. Now, you're able to dial-in your range to match the trail, either beforehand or on-the-fly.


And though the XX1 crank is designed to work optimally in tandem with the XX1 group, you're able to use the crank and a 10-speed chain in order to enjoy the benefits of running a single-speed or one-by-10 setup.


The SRAM XX1 BB30 Crankarms with 168mm Q-Factor are available in the color Black and in either a 170 and 175mm length. Please note that these cranks are sold individually without a chainring. This crank has been give a 168 Q-Factor in order to accommodate those who prefer a wider tread.


Details

  • Carbon fiber crankarms
  • 168mm Q-factor
  • X-Sync technology
  • 6 chainring options
  • 10-speed compatible
  • Item #SRM0542
Arm Material
carbon fiber
Arm Length
170 mm, 175 mm
Bottom Bracket
not included
BB Type
BB30
Bolts
4
Spindle
BB30
Recommended Use
all-mountain
Manufacturer Warranty
2 years

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