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    MSRP
    $549
    Where to Buy
    $1

    At

    Category
    General Youth
    Frame
    Aluminum
    Steel
    Wheels
    Aluminum
    Wheel Size
    20″
    Tektro Hydraulic Disc
    microSHIFT
    Drivetrain
    1 × 8
    Brand Site

    bikesonline.com

    Summary
    The Polygon Premier 20 Disc EVO is a 20″ aluminum frame general youth bike with modest components and tektro hydraulic disc brakes.

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    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)

    19 mph

    Premier 20 Disc EVO

    Highest gear

    (descending)

    Geometry
    Specs
    Frame

    ALX XC Sport Alloy Frame, Threaded BSA 68mm Bottom Bracket, IS Mount Disc Brake 160mm, M10x135mm Rear Spacing, External Cable Routing, Bolt-On Centre Kickstand Mount

    BB StandardBSA, 68mm, Threaded

    Tire Clearance2.25"

    Fork

    Steel Rigid Fork, Straight 1-1/8” Threadless Steerer, IS Mount Disc Brake 160mm, 9x100mm Quick Release

    Bottom Bracket

    BSA, 68mm, threaded

    Headset

    Zero Stack, Caged Bearing, S.H.I.S.: ZS44/28.6 | ZS44/30

    Stem

    Alloy Stem, 40mm Length, 25.4mm Clamp, 7° Rise

    Handlebar

    Alloy Handlebar, 580mm Width, 25.4mm Bore, 30mm Rise, 6° Bend

    Saddle

    Polygon Junior Saddle, Steel Rail Ø7mm

    Seatpost

    Alloy Seatpost, 27.2x250mm, 0mm Offset

    TypeRigid

    Pedals

    One-Piece PP Body Platform Pedals

    Grips

    Polygon Kraton Grips

    Groupset
    Rear Derailleur

    MicroSHIFT RD-M5185S Short Cage, 8-Speed

    Crank

    36T, Max Capacity 36T

    Shifters

    MicroSHIFT SL-M6280-R with Optical Gear Display, 1x8-Speed Trigger

    Cassette

    MicroSHIFT CS-H803, 11–38T, 8-Speed

    Chain

    KMC Z8.3

    Brakes

    Front: Tektro HD-J285 Hydraulic Disc Brake, Rear: Tektro HD-J285 Hydraulic Disc Brake

    TypeTektro Hydraulic Disc

    Wheels
    Rims

    Polygon Alloy Double Wall 20", 30mm Width, 32H

    Front Hub

    Solon DH802F, 9x100mm Quick Release, 32H

    Rear Hub

    Solon DH802R, M10x135mm Quick Release, 32H

    Tires

    Vee Tire Co. Crown Gem, 20x2.25", 27 TPI

    Disc Rotors

    Tektro TR160-52, 160mm, 6-Bolt

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