SRAM Rival 1 GXP Crankset

No front derailleur required.

With one-by drivetrains firmly established as a viable option in the mountain and cyclocross realms, SRAM is now in the process of expanding the one-by paradigm to the road with its Rival 1 group. The Rival 1 GXP Crankset sits at the center of the group to guide the chain through the pedal stroke with perfect lines and outstanding chain retention.

While some of us at Competitive's office remain skeptical of a sole chainring's utility in more mountainous regions, others are eager to sacrifice a top-end gear or two for the weight savings and clean simplicity of the new options. Whatever the case, this setup certainly shows promise for riders living in less aggressive topographies and may be an ideal setup to ditch the front derailleur and save some weight for crits and time trials.

The crank arms are fashioned from forged aluminum for efficient power transfer at a much lower price point than their carbon fiber counterparts. The chainring's teeth feature a distinctly tall, squared-off profile that catches the chain earlier and releases it later in the pedal rotation than standard triangular teeth, improving chain stability and retention. The teeth also have rounded chamfer edges to aid chain retention and minimize deflection. SRAM also keeps b-road adventures in mind by including recesses that help clear mud.

The SRAM Rival 1 GXP Crankset is compatible with GXP-equipped framesets with 130mm and 135mm rear spacing.

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Great Bang For Your Buck 1x Crankset

  • Familiarity: I've put it through the wringer

Looking for a 1x crankset for a gravel or cyclocross bike that isn't going to break the bank? Look no further, the Rival 1 has it all and does a great job with it. I was looking to drop the front derailleur on my beater CX/Gravel/Commuter Diamondback Haanjo trail and the BCD & bolt pattern on the FSA 2x crankset was funky, meaning I decided a GXP threaded bottom bracket & the Rival 1 crank was my solution. It isn't a carbon crank, but I don't need one.

For the record, my drivetrain previously was a FSA 2x crankset, an ultegra front and rear (medium cage I think) derailleur, and a 11-32 cassette. I went to the Rival 1 crankset, an SLX 11-40 cassette (Item #SHI00C1), and a Wolftooth Roadlink (Item #WFC0006). I'm running it with a Sram 11sp chain and it works flawlessly. I do wish the Ultegra derailleur had a clutch to keep chainslap down a bit on rougher CX terrain, but the shifting itself works flawlessly.

If you have any questions on whether or not this is the right crankset for you, what bottom bracket you'll need with it, or updating your drivetrain to a 1x, don't hesitate giving a shout and I'd be happy to help! My direct line is 801.204.4547 or you can reach me at cojohnson@backcountry.com

Great Bang For Your Buck 1x Crankset
Unanswered Question

What is the chainline dimension for this crankset?

Unanswered Question

Does this item include the GXP BB?