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    SIABLO CF GRX2025 Silverback
    Recommended
    MSRP
    ($3,489)
    Where to Buy
    —
    $1

    At

    Category
    		Gravel
    Weight
    		20.9 lbs
    5.8
    Frame
    		Carbon
    		Carbon
    Wheels
    		Aluminum
    Wheel Size
    		700c
    Clearance
    		50c
    		Shimano GRX 800 Hydraulic Disc
    		GRX 800
    Drivetrain
    		1 × 12
    Brand Site

    silverbackbikes.de

    Summary
    		The Silverback SIABLO CF GRX is a carbon frame gravel bike with high-end components and shimano grx 800 hydraulic disc brakes.

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    Insights
    Ride Feel

    Based on frame geometry and build specs.

    Rider Position
    relaxedaggressive
    Terrain
    smoothrugged
    SIABLO CF GRX
    Other Gravel 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)

    35 mph

    SIABLO CF GRX

    Highest gear

    (descending)

    Spec Level

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

    Geometry
    Specs
    SIABLO CF GRX2025 Silverback
    Frame

    Full Carbon Frame, Internal Cable Routing, Flat-mount Disc Brake Mounts. Supports 700C and 650B Wheelsize, including Internal Routed Dropper Post Compatible.

    BB Standard: BSA, 68mm, Threaded

    Tire Clearance: 50c

    Color: Rainbow Pearl

    Fork

    700C Full Carbon Fork, 100x12mm Hub Spacing, for Internal Cable Routing, waterbottle and pannier mounts

    Bottom Bracket

    Shimano SM-BBR60, BSA68

    Headset

    Siablo CF Headset, for Internal Cable Routing. IS52/28.6 IS52/40

    Stem

    SURFACE Alloy Stem, 31.8mm, Rise ±7°

    Handlebar

    SURFACE Alloy Handlebar, Ø 31.8mm, Reach: 77mm, Drop: 128mm, Flare: 16°

    Saddle

    SURFACE Saddle, Steel Rails

    Seatpost

    SURFACE Alloy, Ø 27.2mm

    Type: Rigid

    Pedals

    Not Included

    Grips

    Surface Handlebar Wrap, Suede Black, Plug with Expander Bolt

    Groupset
    Rear Derailleur

    Shimano GRX RD-RX822, 12-Speed, 10-51T, Direct Attachment

    Crank

    Shimano GRX FC-RX820-1, 12-Speed, 40T

    Shifters

    Shimano GRX ST-RX820

    Cassette

    Shimano Deore CS-M6200, 12speed Hyperglide+, 10-51T

    Chain

    Shimno Deore CN-M6100 Chain, 12 Speed

    Brakes

    Shimano GRX BR-RX820 Hydraulic Disc, Resin Pad

    Type: Shimano GRX 800 Hydraulic Disc

    Wheels
    Rims

    F: SURFACE Alloy Rim, 21mm Internal Width, 30mm Depth, 28H

    Front Hub

    F: Shimano HB-RS470 Front Hub, 28H, 100mm OLD for 12mm Thru Type Axle (w/o Lock Ring)

    Rear Hub

    F: Shimano HB-RS470 Front Hub, 28H, 100mm OLD for 12mm Thru Type Axle (w/o Lock Ring)

    Tires

    Maxxis Rambler 700Cx40C, 60TPI, Silkshield, Tubeless Ready

    Disc Rotors

    Shimano SM-RT70 160mm, Centre-Lock

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