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Ships within 48 hours · Estimated delivery Aug 6 - Aug 11
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Description
Neutron Crank ArmENGINEERED FOR: Weight Weenies Upgrade Specialists Custom Bike Builders Lighter. Stiffer. Faster. The Ultimate Crank Arm Upgrade. Experience a tangible performance boost with the Neutron Carbon Crank Arm. Meticulously engineered from full carbon fiber, this crankset is a testament to our obsession with stiffness, low weight, and rider friendly design. It represents a significant leap forward, offering a 25% increase in stiffness and a 12% reduction in
ENGINEERED FOR: Weight Weenies | Upgrade Specialists | Custom Bike Builders
Lighter. Stiffer. Faster. The Ultimate Crank Arm Upgrade.
Experience a tangible performance boost with the Neutron Carbon Crank Arm. Meticulously engineered from full carbon fiber, this crankset is a testament to our obsession with stiffness, low weight, and rider-friendly design. It represents a significant leap forward, offering a 25% increase in stiffness and a 12% reduction in weight over our previous generation.
At a mere 335 grams (for a set of two arms and spindle), the Neutron Crank Arm is the perfect foundation for a featherlight build, providing the rigidity needed for explosive sprints and efficient climbing.
The Neutron Advantage: Designed for the Rider
We focused on the details that matter most to mechanics and discerning cyclists:
•Effortless Installation: Built with a 24mm aluminum spindle and a SRAM 8-bolt mount, installation is straightforward. No proprietary tools or heavy-duty torque wrenches required.
•Seamless Integration: A Q-factor identical to Shimano standards means no need for biomechanical adjustments. It’s a true plug-and-play upgrade.
•Clean & Simple Setup: Forget fumbling with extra spacers. Our design ensures a faster, cleaner, and more precise installation right out of the box.
Build Your Perfect Drivetrain
The Neutron Crank Arm is the versatile heart of your custom setup. Choose your path:
•Power-Ready: Select the SIGEYI AXO power meter spider for world-class, dual-sided power measurement with +/- 1.0% accuracy.
•Power-Optional: Opt for the standard spider and upgrade to a power meter later.
•Pure Lightweight: Choose the "Spider WITHOUT powermeter" option for the absolute lightest configuration.
Tech Specs
•Crank Arm Material: Full Carbon Fiber
•Spindle: 24mm Aluminum
•Mount: SRAM 8-Bolt Direct Mount
•Weight: 335g (L/R arms + spindle)
•Available Arm Lengths: 165mm, 167.5mm, 170mm, 172.5mm
•Power Meter Spider (Optional): SIGEYI AXO (+/- 1.0% accuracy)
Compatibility
•Frame: Compatible with most road frames using a 24mm bottom bracket standard.
•Chainrings: Compatible with any SRAM 8-bolt direct mount chainring or power meter spider.
The foundation of speed is stiffness and low weight. Build your dream bike starting with the Neutron Crank Arm.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 5
Good product
Size: 1.5 Ounce (Pack of 5)
Fine transaction
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 16, 2026
★★★★★ 5
Mouth moistener
Size: 1.5 Ounce (Pack of 5)
This is a good deal. I use it all the time.
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Reviewed in the United States on March 19, 2026
★★★★★ 5
Really works!
Size: 1.5 Ounce (Pack of 5)
The best brand out there!
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Reviewed in the United States on March 30, 2026
★★★★★ 4
Helpful but pricey
Size: 1.5 Ounce (Pack of 5)
This is a helpful product. Too bad it’s so pricey though.
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Reviewed in the United States on February 16, 2026
★★★★★ 5
Very helpful
Size: 1.5 Ounce (Pack of 5)
My husband had throat cancer approximately 5 years ago. Treated with chemo and radiation. The radiation burned his saliva glands. This really helps him keep moisture in his mouth. I have it on an auto delivery every 6 weeks (pack of 6)
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Reviewed in the United States on May 30, 2026