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    Blast 202021 BMC
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Mountain Youth
    Weight
    		20.2 lbs
    3.3
    Frame
    		Aluminum
    		Aluminum
    Wheels
    		Aluminum
    Wheel Size
    		20″
    		Tektro Hydraulic Disc
    		X4
    Drivetrain
    		1 × 8
    Brand Site

    bmc-switzerland.com

    Summary
    		The BMC Blast 20 is a 20″ aluminum frame mountain youth bike with mid-range components and tektro hydraulic disc brakes.

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    Similar Bikes
    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Handling
    nimblestable
    Blast 20
    Other Mountain Youth 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)

    17 mph

    Blast 20

    Highest gear

    (descending)

    Geometry
    Specs
    Blast 202021 BMC
    Frame

    Blast 20" Lightweight Aluminium with Powder Coat Finish, • 1 1/8"" Head Tube, • BSA Threaded Bottom Bracket, • 140mm Post Mount, • 9X135mm QR

    BB Standard: BSA, Threaded

    Colors: Bronze; Petrol Blue

    Fork

    Blast 20" Lightweight Aluminium with Powder Coat Finish, • 140mm Post Mount, • 9X100mm QR

    Bottom Bracket

    BSA, threaded

    Stem

    BMC BLAST, 40mm length, ± 6 angle

    Handlebar

    SDG Slater Handlebar, 650mm wide, 20mm rise, 19mm bar ends, 31.8mm clamp.

    Saddle

    SDG Fly Jr

    Seatpost

    Alloy 27.2mm, 300mm long

    Type: Rigid

    Groupset
    Rear Derailleur

    SRAM X4, Medium Cage

    Crank

    Lightweight Forged Alloy Cranks, 32T 1x Specific Narrow Wide chainring, 127mm

    Shifters

    SRAM X4 8Spd Trigger

    Cassette

    Sunrace 11-34T, Black finish

    Chain

    SRAM 8spd

    Brakes

    Tektro HD-M286, short reach levers, 140mm rotors

    Type: Tektro Hydraulic Disc

    Wheels
    Rims

    Alex MD25, 25mm inner width

    Front Hub

    CNC Machined Alloy Hub Body, Sealed Bearings, Quick Release

    Rear Hub

    CNC Machined Alloy Hub Body, Sealed Bearings, Quick Release

    Tires

    Kenda Booster 20x2.4"

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