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Full Speed Ahead SL-K 2x Modular Carbon Crankset 12 Speed 172.5mm DM/90 BCD 50/40t Black
Reference Number: 6NE8VD
Upgrade Your Cycling Performance with the Full Speed Ahead SL-K 2x Modular Carbon Crankset - 172.5mm, 50/40t, HG+ 12-Speed Compatibility, DM/90 BCD, 30mm 386EVO
Optimize your road or gravel bike with the cutting-edge FSA SL-K 2x Modular Carbon Crankset, designed for serious cyclists seeking lightweight durability, superior technology, and exceptional shifting performance. Crafted with advanced materials and innovative engineering, this crankset is engineered to elevate your riding experience.
Premium Materials & Lightweight Engineering
Constructed with FSA's proprietary Hollow Technology, the SL-K crank arms feature ultra-light, hollow carbon fiber, delivering a perfect balance between weight savings and stiffness. The high-modulus UD carbon finish not only provides a sleek, aggressive aesthetic but also ensures long-term durability under demanding conditions. The CNC-machined 30mm BB386EVO spindle made from 7050 aluminum guarantees precise power transfer and compatibility with a wide range of bottom brackets.
Advanced Components & Technology
FSA's revolutionary MEGATORQ technology on the cold-forged, CNC-machined 7075 aluminum chainrings redefines chain retention, shifting smoothness, and overall durability. The 50/40t chainring setup offers versatile gearing suitable for both climbing and sprinting, optimized for HG+ 12-speed road systems. The direct mount outer chainring paired with a 90mm BCD inner chainring ensures efficient power transfer and effortless gear changes. The chainring's innovative tooth profile reduces chain drops and accelerates shifting, even under high loads.
Style & Versatility for Diverse Use Cases
Designed for road bikes and gravel adventures, the SL-K crankset features a 172.5mm crank arm length, a 44mm chainline, and a 174mm Q-factor, positioning it perfectly for optimized rider ergonomics and handling. Its compatibility with 130 Hubs and 135/142 Road Disc Hubs (with chainstays less than 415mm or greater) makes it a versatile choice for various bike frames. The sleek black finish adds a modern, professional look, making it suitable for performance-focused cyclists and enthusiasts alike.
Key Features & Benefits
- Compatible with HG+ 12-Speed Road Drivetrains for seamless integration
- Ultra-light, stiff carbon crank arms using FSA's Hollow Technology for maximum efficiency
- Cold forged 7075 CNC-machined chainrings with MEGATORQ technology for enhanced chain retention and shifting performance
- Updated derailment angle on the non-contact side for faster, more precise gear changes
- High-precision 30mm spindle with 386EVO interface for durability and easy installation
- Versatile chainline options (130, 135/142 Hubs) suitable for road and gravel bikes
- Agile 172.5mm crank length with a 44mm chainline and 174mm Q-factor for optimal rider comfort
Specifications
- Chainring Setup: 50/40t, Double
- Drivetrain Compatibility: 12-speed HG+
- Chainring BCD: Direct Mount FSA 90mm
- Crank Length: 172.5mm
- Spindle Interface: 386EVO
- Color: Black
- Weight: Approx. 650 grams (without bottom bracket)
Experience unmatched performance, durability, and style with the FSA SL-K 2x Modular Carbon Crankset. Whether conquering steep climbs, sprints, or gravel trails, this crankset delivers exceptional power transfer, smooth shifting, and a sleek aesthetic tailored for serious cyclists who demand the best. Elevate your bike's performance today with FSA's innovative technology and precision engineering.
- Lightweight and Stiff Carbon Construction: Crafted with FSA's advanced Hollow Technology, this 172.5mm carbon crankset offers an optimal blend of ultra-lightweight design and exceptional stiffness for responsive power transfer on both road and gravel bikes.
- Innovative MEGATORQ Chainring Technology: Featuring Cold Forged 7075 aluminum chainrings with FSA's optimized tooth profile and advanced derailment angles, ensuring smooth, precise shifting, superior chain retention, and increased durability under demanding cycling conditions.
- Optimized Gear Compatibility & Performance: Designed specifically for HG+ 12-speed systems with direct mount 50/40t chainrings and 90 BCD inner rings, providing seamless integration for diverse drivetrain setups and improved shifting efficiency across varied terrain.
- Premium Materials & Engineering: Equipped with a CNC machined 30mm BB386EVO spindle, 44mm chainline, and 174mm Q-factor, the SL-K crankset delivers long-lasting durability, precise fit, and compatibility with road and gravel hub standards, ensuring reliable performance over time.
- Sleek Aesthetics & Versatile Use Case: Finished in a matte UD carbon look, this crankset combines high-performance engineering with modern style, making it ideal for competitive cyclists, enthusiasts, and gravel riders seeking both functionality and a refined visual profile.
| Item Specifications | |
|---|---|
| Rings | 50/40 |
| Number of Chainrings | Double |
| Drivetrain Speeds | 12 |
| Chainring BCD | Direct Mount FSA |
| Chainring BCD | 90 |
| Chainline/Hub Compatibility | 130 Hubs |
| Chainline/Hub Compatibility | 135/142 Road Disc Hubs < 415 mm Chainstay |
| Chainline/Hub Compatibility | 135/142 Road Disc Hubs > 415 mm Chainstay |
| Color | Black |
| Crank Length (mm) | 172.5 |
| Crank Intended Use | Road |
| Crank Intended Use | Gravel |
| Weight | 650 |
| BB Included | No |
| Pedal Spindle | 9/16" |
| Spindle Interface Type | 386 EVO |
| Defined Color | Black |
Why 365 Cycles?
365 Cycles is an Authorized Full Speed Ahead Dealer, and we offer the Full Full Speed Ahead Warranty!
Fast Shipping!
Professional Customer Service- available 7 days a week
Check out our 200,000+ amazing reviews!
365 Cycles delivers all your cycling needs fast! We don't waste time preparing your order. Our priority is to serve our customers first and foremost. If you need help picking the right product, have questions about bike component compatibility, or just want to geek out about bikes we are here 7 days a week! Simply put, we are bike experts from dirt to tarmac and want to make sure you get the full 365 Cycles experience when you shop with us.
At 365 Cycles our mission is to simplify the shopping experience. We want to get you the right product in a quick time frame and be here if you need help with questions, warranty, friend to talk to, etc.
We’re dedicated to building lasting relationships with our customers, communities, and team members. We combine the knowledge and service of a traditional bicycle shop with the convenience of shopping in your own home.
Shipping & Handling
Most orders placed during the workweek before 1:30 pm EST ship the same day, but in rare cases (peak season/holiday periods) handling time can take up to 48 hours. If you have questions regarding shipping estimates, please let us know prior to placing your order. There is a direct signature requirement for all orders over $500.Please allow 1-2 business days for your order tracking to update.
- Cut off for SAME DAY SHIPPING- 1:30 pm EST Monday - Friday
- Friday afternoon -Sunday orders ship the following Monday
- Due to carrier restrictions orders shipped to: PO Box, HI, AK, & PR 365 Cycles may use a comparable service to what was selected.
Combined Shipping Discounts
To offer customers savings on shipping, we offer discounts when shipping multiple items from our store. We cannot issue refunds on shipping once an order is finalized so please follow the 5 steps below and ask if you are having trouble with the discount before you make a purchase.- Be sure you are using the US site: https://www.ebay.com
- Select Add to Cart (instead of Buy It Now) with items from our store 365Cycles
- Click on Proceed to Checkout. On the checkout page, the shipping service on each line item needs to match
- Compare First Class vs Priority as sometimes Priority can be cheaper and it gets to you faster!
- You’ll need to change the shipping method to Priority on every item in your cart before the rate can be calculated.
Returns
365 Cycles offers returns for 30 days on new items in their original, intact packaging. Return shipping for ALL orders are to be paid by the buyer. Please be sure to read our return policy entirely and if you have any questions, please contact Customer Service.
Full refunds are issued on items that are brand new and we are able to resell as new. 365 Cycles reserves the right to deny returns that are outside of policy including, but not limited to, used items, items missing original packaging, items with damaged manufacturer packaging, or international orders. Return orders must be shipped in a box or bubble mailer. Items shipped without an outer box will incur a restocking fee. You will be contacted through eBay if your return is ineligible for a full refund.
Returns must be initiated within 30 days from purchase date through your Purchase History under My eBay.
If we make an error in shipping, please contact us -- we will ship out the correct item and provide a free prepaid return label as quickly as possible!
Exchanges
If you need to exchange your order, the fastest and easiest way to do this is to reorder. We will ship your new order immediately and, in the meantime, please initiate a return through eBay on the original item and return it. We will refund for the returned item once it is received back.
