Bikes up to 60% offWe monitor over 40,000 bikes daily to find the best prices

Today’s Deals
Bike Comparison
    MSRP
    $1,000
    Where to Buy
    $1

    At

    Category
    Commuter
    Weight
    27.0 lbs
    3.0
    Frame
    Steel
    Steel
    Wheels
    Aluminum
    Wheel Size
    700c
    Promax Mechanical Disc
    Sora
    Drivetrain
    2 × 9
    Brand Site

    publicbikes.com

    Summary
    The Public R18 Disc is a 700c steel frame commuter bike with mid-range components and promax mechanical disc brakes.

    Ask 99 Spokes

    Similar Bikes
    Insights
    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)

    36 mph

    R18 Disc

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    Frame

    PUBLIC 100% Chromoly steel, with fender and rack braze-ons

    ColorsCobalt; Cream

    Fork

    PUBLIC chromoly hi-tensile blend unicrown disc fork, with fender and rack braze-ons

    Headset

    1.125" threadless, steel

    Stem

    Alloy, threadless high polish silver, 25.4 clamp (80mm for XS/S/M; 100mm for L)

    Handlebar

    PUBLIC alloy riser bar, 610mm wide, 10 deg backsweep, 20mm rise

    Saddle

    PUBLIC Premium Sport Saddle, 153mm wide, chromoly rails, with brass rivets

    Seatpost

    Alloy micro-adjust with integrated clamp, 27.2mm

    TypeRigid

    Pedals

    Wellgo M149 full alloy platform and cage, 9/16" axle

    Grips

    PUBLIC Slender Grip, with alloy clamps

    Groupset
    Rear Derailleur

    Shimano Sora R-3000 9-speed

    Front Derailleur

    Shimano Sora R-3000 (2x9)

    Crank

    Alloy double crankset 46/34 tooth rings (S: 165mm M: 170 L: 175mm)

    Shifters

    Shimano Rapid Plus

    Cassette

    Shimano 9-speed HG400 11-32 tooth cassette

    Brakes

    Promax mechanical disc brakes with 160mm rotors, with alloy 4 finger lever.

    TypePromax Mechanical Disc

    Wheels
    Rims

    Alloy double wall, 32H, 700c

    Spokes

    14G Stainless steel

    Front Hub

    Alloy hub with bolt-on quick-release skewer

    Rear Hub

    Alloy hub with bolt-on quick-release skewer

    Tires

    Kenda Kwest 700x32c

    Accessories
    Fenders

    Polished silver, 47mm alloy fenders (F/760mm, R/1230mm)

    Riders Also Compared