The Shimano 105 FC-RS520 is a 2-piece, 4-arm crank that's compatible with modern disc brake road frames.4-arm crankset for 12-speed drivetrain. Compatible with frames of O.L.D. 135mm and 410mm chainstay length. 44.5mm chainline. 150mm Q-factor. Compatible with HG 12-speed chains. Item Specifications: BB Included, No, Chainline/Hub Compatibility, 135/142 Road Disc Hubs > 415 mm Chainstay, Chainring BCD, 110 Shimano Asymmetric, Color, Black, Crank Intended Use, Road, Crank Length (mm), 170, Defined Color, Black, Drivetrain Speeds, 12, Number of Chainrings, Double, Pedal Spindle, 9/16", Rings, 50/34, Spindle Interface Type, Shimano Hollowtech II, keyword search, 105,

Shimano 105 FC-RS520 Crankset 12-Speed 170mm 110BCD 34/50T 0.0mm Hollowtech II Black

Reference Number: 5NE5VD

Experience Precision and Performance with the Shimano 105 FC-RS520 Crankset - 12-Speed Road Cycling Excellence

Elevate your road cycling setup with the Shimano 105 FC-RS520 Crankset, designed for serious riders who demand durability, efficiency, and style. Crafted from high-quality materials and engineered with Shimano's advanced technology, this 2-piece, 4-arm crankset is the ideal choice for seamless shifting and reliable power transfer on modern disc brake road bikes.

Optimized for 12-Speed Drivetrain Compatibility

Built specifically for Shimano's acclaimed 12-speed groupsets, the FC-RS520 features a versatile 50/34t chainring configuration, perfect for tackling varied terrain and maintaining high cadence. Its asymmetric 110 BCD (Bolt Circle Diameter) ensures compatibility with a wide range of lightweight and stiff chainrings, improving pedaling efficiency and responsiveness during intense rides.

Premium Materials & Engineering

Constructed from durable aluminum, the crank arms strike an excellent balance between weight savings and strength, ensuring longevity on all your cycling adventures. The Shimano Hollowtech II spindle interface offers maximum stiffness for efficient power transfer, while the 170mm crank length provides optimal leverage and control.

Innovative Components & Technology

The FC-RS520 supports HG 12-speed chains, enabling smooth, precise shifting across multiple gears. Its 44.5mm chainline aligns perfectly with modern disc brake road frames, ensuring optimal chain alignment and reducing drivetrain wear. Designed to fit frames with a 135mm or 410mm chainstay length and 415mm hub spacing, this crankset delivers precise handling and enhanced stability.

Style & Use Case

With a sleek black finish, the Shimano 105 FC-RS520 combines professional-grade performance with a clean, understated look. It's ideal for road cyclists, racers, and enthusiasts seeking a reliable upgrade for their gravel, endurance, or sportive bikes. Whether ascending steep climbs or cruising at high speed, this crankset provides the power and efficiency you need.

Key Features Summary:

- 4-arm crankset engineered for 12-speed Shimano drivetrains

- 50/34t double chainring setup for versatile gearing

- Compatible with 135mm or 410mm chainstay bikes, disc brake road frames

- 44.5mm chainline enhances drivetrain performance

- 170mm crank length for balanced leverage and comfort

- Shimano Hollowtech II spindle interface for maximum stiffness

- Constructed from lightweight, durable aluminum

- Supports HG 12-speed chains for smooth shifting

Upgrade your road bike with the Shimano 105 FC-RS520 Crankset - the perfect blend of performance, durability, and style. Designed for serious cyclists who want reliable power transfer and effortless gear changes, this crankset guarantees a competitive edge on every ride.

  • High-performance Shimano 105 FC-RS520 crankset built with lightweight aluminum and steel components for durability and efficiency in road cycling.
  • Designed for 12-speed Shimano drivetrains with a 50/34t compact chainring setup, optimized for versatile climbing and sprinting performance.
  • Features Shimano Hollowtech II spindle technology for enhanced stiffness, power transfer, and smooth pedaling efficiency on modern disc brake road bikes.
  • With a 110mm asymmetric BCD and 170mm crank arm length, this crankset offers precise chainring alignment and compatibility with a wide range of road frames and wheel setups.
  • Sleek black finish and asymmetric chainline design provide a stylish look combined with excellent clearance and compatibility for aggressive riding styles and long-distance road cycling.
Item Specifications
ColorBlack
Rings50/34
Number of ChainringsDouble
Crank Length (mm)170
Crank Intended UseRoad
Drivetrain Speeds12
BB IncludedNo
Pedal Spindle9/16"
Spindle Interface TypeShimano Hollowtech II
Chainring BCD110 Shimano Asymmetric
Chainline/Hub Compatibility135/142 Road Disc Hubs > 415 mm Chainstay
Defined ColorBlack
keyword search105

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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.

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Exchanges

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Company Details

365 Cycles
1180 Enterprise Rd
East Petersburg, PA 17520
United States

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