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    BOSSNUT2025 Calibre
    Recommended
    MSRP
    Where to Buy
    —
    $1

    At

    Category
    		Trail
    4.7
    Frame
    		Aluminum
    		RockShox Recon Silver RL
    		RockShox Deluxe Select
    Wheels
    		Aluminum
    Wheel Size
    		27.5″ / 29″
    		Shimano Deore Hydraulic Disc
    		CUES
    Drivetrain
    		1 × 10
    Suspension
    		Full
    Front Travel
    		140mm
    Rear Travel
    		135mm
    Brand Site

    calibrebicycles.com

    Summary
    		The Calibre BOSSNUT is a 27.5″ / 29″ aluminum frame full suspension trail bike with upper mid-range components.

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    Similar Bikes
    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Terrain
    easyextreme
    Handling
    nimblestable
    BOSSNUT
    Other Trail 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)

    25 mph

    BOSSNUT

    Highest gear

    (descending)

    Geometry
    Specs
    BOSSNUT2025 Calibre
    Frame

    29”, 6061 Alu, boost spacing, 135mm rear travel, 73mm BSA BB

    BB Standard: BSA, 73mm, Threaded

    Fork

    RockShox Recon Silver RL, 29”, 140mm, stealth boost, 42mm offset

    Travel: 140mm

    Spring Type: Air

    Shock

    RockShox Deluxe Select R, 210x55

    Travel: 135mm

    Bottom Bracket

    73mm threaded BSA BB

    Headset

    FSA No57e tapered, zs44 upper, zs56 lower

    Stem

    45mm extension, 31.8mm clamp

    Handlebar

    780mm wide, 20mm rise, 3deg upsweep, 6deg backsweep, bar bore 31.8mm

    Saddle

    Calibre trail

    Seatpost

    X-Fusion Manic LC, XS&S:125mm, M:150mm, L&XL: 170mm

    Type: Dropper

    Pedals

    Flat pedals

    Grips

    Calibre ribbed lock-on grips

    Groupset
    Rear Derailleur

    Shimano RD-U600 Cues

    Crank

    Shimano Cues 32T, 170mm crank length

    Shifters

    Shimano SL-U6000-10R Cues

    Cassette

    Shimano CS-LG300, 10 speed, 11-48T

    Chain

    Shimano Linkglide, LG500, 118 links

    Brakes

    Shimano BL-MT401/BL-MT410

    Type: Shimano Deore Hydraulic Disc

    Wheels
    Rims

    30mm ID, tubeless ready

    Front Hub

    Shimano HB-TC500-15-B, 110mm, 32h

    Rear Hub

    Shimano FH-TC500-HM-B, 148mm, 32h

    Tires

    Front: Maxxis 29”x2.5” Minion DHF 60Tpi Exo, Rear: Maxxis 29”x2.4” Forekaster 60Tpi Exo

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