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Prototype - Evolving Daily

Shimano Shifter/Brake Levers

8 models, 8 verified variants. Only rows checked against Shimano’s own page are listed.

A value shown as a set or a range differs between this model’s variants and is never one variant’s spec. A cell marked not stated is a field the maker does not publish, so nothing here checks it.

ModelVariantsSystemSpeedsActuationBrake systemSideFront shiftPrice (MSRP)
Shimano GRX ST-RX4001Drivetrain system shimano-grx-1010-speed (rear index count the maker rates it for)MechanicalDisc-hydraulicSold as a pairShifts a front derailleur$220.00
Shimano GRX RX6001Drivetrain system shimano-grx-1111-speed (rear index count the maker rates it for)MechanicalDisc-hydraulicSold as a pairShifts a front derailleur$260.00
Shimano GRX RX6101Drivetrain system shimano-grx-1212-speed (rear index count the maker rates it for)MechanicalDisc-hydraulicSold as a pairShifts a front derailleur$500.00
Shimano GRX ST-RX715-R1Drivetrain system shimano-grx-1212-speed (rear index count the maker rates it for)Di2-wiredDisc-hydraulicSold as a pairNo front shifting$450.00
Shimano GRX ST-RX8101Drivetrain system shimano-grx-1111-speed (rear index count the maker rates it for)MechanicalDisc-hydraulicSold as a pairShifts a front derailleur$280.00
Shimano GRX ST-RX8151Drivetrain system shimano-grx-1111-speed (rear index count the maker rates it for)Di2-wiredDisc-hydraulicSold as a pairShifts a front derailleur$900.00
Shimano GRX RX8201Drivetrain system shimano-grx-1212-speed (rear index count the maker rates it for)MechanicalDisc-hydraulicSold as a pairNo front shifting$900.00
Shimano GRX ST-RX8251Drivetrain system shimano-grx-1212-speed (rear index count the maker rates it for)Di2-wiredDisc-hydraulicSold as a pairShifts a front derailleur$1,300.00

Source for every row: Shimano’s own product pages, last checked between 2026-07-17 and 2026-08-15.

The checker compares the dimensions listed in what we check, and what we don’t. “No conflicts found” means no conflict among those dimensions — not a guarantee that a build works. Errors mean it won’t fit; warnings mean it works but check; infos are notes.

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