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SKU: CK2903

SRAM XX1 Eagle Carbon Boost Crankset 170mm 12-Speed Black/Gold, DUB Spindle, Hollow Architecture, Carbon-Tuned Lightweight Cycling Crank for Mountain Biking, X-SYNC 2 Chainring, Boost Compatibility, High Stiffness & Durability

Regular price $477.19
$610.00 Sale price $477.19 Regular price
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Description
Specifications

Upgrade your mountain biking performance with the SRAM XX1 Eagle Carbon Boost Crankset - the ultimate choice for serious riders seeking lightweight, durability, and advanced technology. Crafted with precision, this 170mm crankset features a 12-speed compatible design optimized for aggressive trail riding and XC racing.

Materials & Advanced Engineering:

Constructed with SRAM's proprietary Carbon Tuned technology, the XX1 Eagle crankset integrates a hollow internal architecture that maximizes stiffness while minimizing weight, ensuring high responsiveness and power transfer. The carbon lay-up design delivers extreme stiffness-to-weight ratio, providing enhanced pedal efficiency and control on rugged terrains. The DUB bottom bracket interface (sold separately) offers a secure and efficient connection, compatible with various bottom bracket standards for easy installation.

Components & Innovation:

Equipped with a direct mount X-SYNC 2 chainring, this crankset delivers significantly quieter operation, superior mud clearing, and exceptional durability - ideal for muddy, technical trails. Designed specifically for SRAM Eagle chains and drivetrains, the 34-tooth chainring ensures optimal gear ratios for climbing, acceleration, and sustained speed, making it perfect for mountain biking enthusiasts. The Boost-compatible 141/148 hub spacing enhances wheel stiffness and ride stability, providing a confident ride across diverse terrains.

Performance & Use Case:

Ideal for mountain biking disciplines including trail, enduro, and XC, the XX1 Eagle Carbon Boost Crankset excels in delivering high torque response and consistent performance. Its lightweight construction reduces rider fatigue on long climbs and technical descents, while the stiff carbon design ensures maximum power transfer, making every pedal stroke count. Whether conquering steep climbs or tackling fast descents, this crankset offers the reliability and performance you need.

Style & Aesthetics:

Finished in sleek Black and Black/Gold color options, the SRAM XX1 Eagle Carbon Boost Crankset combines high-performance technology with a modern, aggressive aesthetic. Its streamlined design complements any high-end mountain bike build, elevating both form and function.

Key Features:

- Ultra-lightweight, high-stiffness carbon construction with SRAM Carbon Tuned technology

- Hollow internal architecture for optimal strength-to-weight ratio

- SRAM DUB interface for enhanced durability and compatibility (bottom bracket sold separately)

- Direct mount X-SYNC 2 chainring for quieter, more durable performance and superior mud clearance

- Boost spacing (141/148) for increased wheel stiffness and improved handling

- Compatible with 12-speed Eagle drivetrain, ideal for mountain riding

- 170mm crank length for balanced leverage and rider ergonomics

Elevate your mountain biking experience with the SRAM XX1 Eagle Carbon Boost Crankset-built for riders demanding exceptional strength, lightweight efficiency, and cutting-edge technology. Conquer any trail with confidence and speed.

  • Lightweight and ultra-stiff SRAM XX1 Eagle Carbon Boost Crankset crafted from high-quality carbon fiber with a specialized hollow internal architecture for maximum strength-to-weight ratio.
  • Equipped with SRAM DUB technology, this 170mm crankset delivers enhanced stiffness, durability, and a lightweight profile, optimized for demanding mountain biking performance.
  • Includes an exclusive direct mount X-SYNC 2 chainring, ensuring significantly quieter operation, superior mud clearance, and enhanced durability tailored for 12-speed Eagle drivetrain systems.
  • Designed for versatility and performance on boost-enabled bikes, this crankset is compatible with 141/148 boost hubs and features a 34T chainring, ideal for aggressive trail and enduro riding styles.
  • Innovative carbon-tuned lay-up and advanced engineering provide superior power transfer, minimized weight, and outstanding ride efficiency, making it the perfect upgrade for serious mountain bikers seeking durability and speed.
Defined ColorBlack
Rings34
Spindle Interface TypeSRAM DUB
Chainring BCDDirect Mount SRAM
ColorBlack/Gold
Chainline/Hub Compatibility141/148 Boost Hubs
Drivetrain Speeds12
Drivetrain Speeds11
Drivetrain Speeds10
Number of ChainringsChain Retaining Single
Crank Intended UseMountain
BB IncludedNo
Pedal Spindle9/16"
Crank Length (mm)170
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We pride ourselves on our ability to ship and deliver your gear with excessive speed! We ship from 22 locations throughout the United States and most orders will arrive in 3 days or less with Free Shipping on orders over $75!

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Most orders placed during the workweek before 1:00 PM Eastern time ship the same day, but during peak/holiday season or depending on inventory location handling time can take up to 48 hours. If you have questions regarding shipping estimates, don't hesitate to get in touch with us before placing the order. There is a direct signature requirement for all orders over $500.

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365 Cycles puts the customer above everything. Our number one goal is your satisfaction. When you press the shift lever you want the gears to shift, and when you buy bicycle parts, you want the bicycle parts to arrive on time in new condition. With over 60,000 products and 22 warehouse locations throughout the country, we have the parts you need and they are coming in hot!

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Our team is waiting to help you 7 days a week and they are more qualified to help than I am but if you ever feel like you're not getting the service you need I’m personally asking you to email me at ben@365cycles.com with "CUSTOMER LOYALTY" in the title and I will personally handle your order.

Over the years we have served millions of satisfied customers and continue to serve many of them today. With your feedback, we are confident we can take this lifelong journey together and build a friendship that goes beyond parts and accessories.

“If you want to go fast, go alone, if you want to go far, go together.” -Someone Smart

Ben Berman Founder & CEO of 365 Cycles


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These were established by the members of our team and we use them every week to call out team members who have shined in one of these areas. Feel free to let us know at info@365cycles.com if someone you worked with has gone above and beyond in one of these areas. 

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Customer Reviews

Based on 2 reviews
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Z
Zack

Those of you reading this post know what they are. I'll leave it at that. Enjoy!

j
jtrn1

This will be the lightest and stifffest crank you will ever own.. at least until they develop something lighter.