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    RD22024 Principia
    Recommended
    MSRP
    ($4,653)
    Where to Buy
    —
    $1

    At

    Category
    		General Road
    Weight
    		18.7 lbs
    7.3
    Frame
    		Carbon
    		Carbon
    Wheels
    		Aluminum
    Wheel Size
    		700c
    		Shimano Ultegra Hydraulic Disc
    		Ultegra, Ultegra Di2
    Drivetrain
    		2 × 12 Electronic
    Brand Site

    principiabikes.com

    Summary
    		The Principia RD2 is a carbon frame general road bike with high-end components and shimano ultegra hydraulic disc brakes.

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    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    RD2
    Other General Road bikes
    Gear Range

    A bike with lower gearing will be easier to ride up steep hills, while a higher top end means it will pedal faster down hills.

    Lowest gear

    (climbing)

    43 mph

    RD2

    Highest gear

    (descending)

    Spec Level

    Based on build material and quality level of the frame, fork, wheelset, groupset, suspension system, and more.

    Geometry
    Specs
    RD22024 Principia
    Frame

    Full monocoque carbon

    BB Standard: BB86/BB92, Press Fit

    Colors: Black; Green

    Fork

    Full monocoque carbon

    Bottom Bracket

    Shimano SM-BB72 pressfit

    Headset

    FSA No 42 1 1/8"-1 1/5"

    Stem

    Ritchey Comp 4-Axis-44 6D Aluminium, 31,8x110mm

    Handlebar

    Ritchey Comp Evo Curve, 420 mm.

    Saddle

    Ritchey Comp Streem

    Seatpost

    Ritchey Comp 2-Bolt Aluminium, 31,6x400mm

    Type: Rigid

    Pedals

    Not included

    Groupset
    Rear Derailleur

    Shimano Ultegra Di2 R8150

    Front Derailleur

    Shimano Ultegra Di2 R8150

    Crank

    Shimano FC-R8100 50/34T

    Cassette

    Shimano CS-M8100 12sp 10-51T

    Brakes

    Front: Shimano Ultegra R8170 hydraulic disc brake, 160 mm. rotor, Rear: Shimano Ultegra R8170 hydraulic disc brake, 160 mm. rotor

    Type: Shimano Ultegra Hydraulic Disc

    Wheels
    Rims

    Miche Reflex DX

    Tires

    Panaracer Race D Evo4 700x28C

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