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SKU: CKST3534

Full Speed Ahead SL-K 2x Modular Carbon Crankset 175mm for Shimano HG+ 12-Speed, 53/39T, DM/90 BCD, 30mm Hollow Carbon Fiber, MEGATORQ Chainring Technology, Ultra-Light, Stiff, High-Performance Road & Gravel Bike Crank with 386EVO Spindle

Regular price $492.00
$546.95 Sale price $492.00 Regular price
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Description
Specifications

Experience cutting-edge cycling performance with the Full Speed Ahead SL-K 2x Modular Carbon Crankset - engineered for serious road and gravel riders seeking lightweight durability and exceptional efficiency. Designed for Shimano HG+ 12-Speed drivetrains, this high-performance crankset offers a perfect blend of advanced materials, innovative technology, and sleek style to elevate your cycling experience.

Materials & Construction:

Constructed using FSA's proprietary Hollow Technology, the SL-K features ultra-lightweight, hollow carbon crank arms that deliver maximum stiffness and durability without added weight. The robust 30mm CNC machined 7050 BB386EVO spindle ensures reliability and smooth power transfer, making it ideal for demanding terrains and high-intensity rides. The sleek UD carbon finish not only provides a modern, high-end aesthetic but also enhances resistance to scratches and UV degradation.

Performance & Engineering:

At the core of the SL-K is FSA's revolutionary MEGATORQ technology, combining precision engineered cold-forged 7075 aluminum chainrings with innovative tooth profiles. This pairing ensures superior chain retention, smoother shifting, and increased chainring durability, even under extreme riding conditions. The optimized derailment angle on the non-contact side enhances shifting efficiency, allowing for faster, more precise gear changes with less chain drop risk.

Components & Technology:

The modular, double chainring setup features 53/39 teeth with direct mount outer and 90 BCD inner rings, compatible with Shimano HG+ 12-speed systems. The chainline options accommodate 130, 135, and 142mm hubs for road and gravel applications, with a chainline of 44mm and a 174mm Q-Factor, providing optimal pedaling efficiency. The design supports both road and gravel riding styles, making it a versatile choice for adventure, endurance, and racing cyclists.

Style & Use Case:

With its sleek black finish and lightweight design (just 650 grams), the SL-K 2x Carbon Crankset is perfect for riders who demand performance and aesthetics. Whether you're tackling mountain passes during road cycling or exploring gravel routes, this crankset offers the strength, stiffness, and style needed for serious riding. Its compatibility with a range of hub standards and 12-speed systems ensures seamless integration into your existing setup.

Innovative & Differentiating Features:

- Fully in-house engineered and manufactured using advanced materials for maximum quality control

- Hollow carbon crank arms delivering lightweight strength and exceptional stiffness

- FSA's MEGATORQ chainring technology for superior chain retention and smooth shifting

- Updated derailment angle for improved shifting efficiency and retention

- Modular design compatible with Shimano HG+ 12-speed drivetrain systems

- Versatile chainline options for road and gravel applications

Upgrade your cycling arsenal with the Full Speed Ahead SL-K 2x Modular Carbon Crankset - the perfect choice for competitive cyclists, gravel adventurers, and performance-oriented enthusiasts seeking a balance of innovation, durability, and style.

  • Lightweight and durable carbon fiber crank arms engineered with FSA's Hollow Technology for optimal stiffness-to-weight ratio, ensuring superior power transfer and ride efficiency.
  • Designed for Shimano HG+ 12-speed road systems, featuring 53/39t double chainrings with direct mount outer and 90 BCD inner rings, providing versatility across various cycling disciplines.
  • Innovative MEGATORQ technology integrated into CNC-machined 7075 aluminum chainrings delivers exceptional chain retention, smooth shifting, and outstanding durability, even under high loads.
  • Sleek UD carbon finish enhances aesthetics while reducing weight; body optimized for both road and gravel applications with a 175mm crank length and 30mm CNC-machined BB386EVO spindle for reliable, friction-free performance.
  • Enhanced shifting performance thanks to an updated derailment angle on the non-contact side, designed to improve gear changes' speed and precision, making this crankset ideal for competitive and endurance cycling.
Rings53/39
Number of ChainringsDouble
Drivetrain Speeds12
Chainring BCDDirect Mount FSA
Chainring BCD90
Chainline/Hub Compatibility130 Hubs
Chainline/Hub Compatibility135/142 Road Disc Hubs < 415 mm Chainstay
Chainline/Hub Compatibility135/142 Road Disc Hubs > 415 mm Chainstay
ColorBlack
Crank Length (mm)175
Crank Intended UseRoad
Crank Intended UseGravel
Weight650
BB IncludedNo
Pedal Spindle9/16"
Spindle Interface Type386 EVO
Defined ColorBlack
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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!

The nitty gritty, for specific delivery timelines please pay attention to the delivery timelines on the product pages and the time frame estimated in the carts. If you need a part by a specific day, please contact us by chat, phone, or

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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.

We provide the you the ability to utilize multiple shipping & billing addresses, based upon what fits your current needs. However you are responsible to maintain and update any new address changes, as 365 Cycles will not be held liable for orders being shipped to an incorrect address.

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If you need to return your order please email us at info@365cycles.com, call us at 603-968-5797, or use the live chat on our site.

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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!

Living an active lifestyle is just that, a lifestyle that never goes away and our goal is to always exceed your expectations so we can take this lifelong journey together. We strive to have the parts you need, at competitive prices with unmatched shipping speeds!

If there is ever an issue with an order we will work at warp speed to fix our mistake and make sure you never go a day without a bicycle! If you are not receiving the quality of service you need from one of our exceptionally qualified bicycle experts, tell them Ben Berman told you to tell them "Customer Loyalty" and then name your terms.

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


Company Core Values: 

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. 

Customer Loyalty

Put yourself in their shoes and support those who support us.

You Control the Outcome

If it is to be, it’s up to me" You are personally responsible for controlling the outcome.

Seek Understanding

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Progress Not Perfection

Pick a direction, analyze the results, and be willing to change course.

Will to Win

Customers, 365 Team, Partners, all need the will to win. Bring the Will to Win to every conversion.

Keep Moving

Move the body, move the mind, and remove any hurdles to achieving an active lifestyle.

Do the Right Thing:

Doing the right thing is more important than doing the thing right.

Stronger together:

If you want to go fast, go alone, if you want to go far, go together. Get your team involved and become stronger together.

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