Full Speed Ahead SL-K Crankset
Best lightweight performance upgrade for dedicated tandem cycling teams.
This is the rare tandem component that refuses to compromise on weight for the sake of durability. By utilizing hollow carbon construction and a beefy spindle, it handles the immense torque of two riders without feeling like an anchor. You get the stiffness required for serious power transfer in a surprisingly lightweight package.
$487.00
at
Bikeman
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FSA SL-K Advanced Crankset
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Full Speed Ahead SL-K 386 EVO Crankset
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Who it's for
- Performance-oriented tandem captains looking to minimize bike weight
- Competitive tandem teams seeking maximum efficiency during sprints and climbs
- Cyclists who value a professional and polished appearance for their build
Who should skip it
- Budget-conscious riders who prefer durability over marginal weight savings
- Home mechanics without specialized torque tools or carbon-specific knowledge
- Multi-bike owners looking for versatile components they can swap easily
Performance breakdown
Power Transfer Efficiency
Hollow carbon construction minimizes flex for direct, responsive pedaling input.
Tandem Torque Handling
The 30mm spindle architecture easily manages the unique stresses of dual-rider output.
Weight Optimization
Carbon fiber build sheds significant mass compared to traditional alloy tandem cranks.
Structural Rigidity
Engineered to maintain shape under the heavy load of two synchronized riders.
Drivetrain Compatibility
Standard 11-speed setup integrates seamlessly with most modern tandem drivetrain configurations.
Finish Durability
Unidirectional carbon finish resists wear while maintaining a sleek, professional look.
Key Specs
Material
Carbon Fiber
Weight
653 grams
Crank Arm Length
175 mm
Intended Use
Tandem
Spindle Type
392 EVO
Spindle Diameter
30 mm
Bolt Circle Diameter
104 mm
Number of Chainrings
1
Chainring Mount Type
4-Bolt
Drivetrain Speed Compatibility
11-Speed
Know before you buy
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Ask Metto anything about the Full Speed Ahead SL-K Crankset before you decide.
