Shifters
microSHIFT R10 Drop Bar Shifters 3×10
SB-R403K-BK
Compatibility: reviewed
Known specifications can be used by the compatibility engine.
Retailer offers
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Technical data
Specifications
- Speeds
- 10-speed
- Supported speeds
- 10-speed
- Compatible drivetrain families
- microSHIFT R10 / Shimano Road legacy mechanical 10-speed
- Front drivetrain groups
- R-Series, R10
- Front speeds
- 3x
- Shift actuation
- Mechanical
- Control style
- Drop Bar Integrated
- Included control sides
- Left, Right
- Left control functions
- Brake, Front Shift
- Right control functions
- Brake, Rear Shift
Catalog trust
Evidence and freshness
Technical-source dates and retailer offer checks are separate. A retailer check does not validate compatibility.
Report a correction- Technical review
- Aug 1, 2026
- Compatibility review
- Reviewed Aug 1, 2026
Approved technical sources
- microSHIFT SB-R403K-BK official labeled model facts
- microshift.com/models/sb-r403kManufacturerSource checked Aug 1, 2026Evidence reviewed Aug 1, 2026