Diamondback Haanjo 4 Bike

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Upgraded with a carbon fork that smooths out the ride and thru axles front and rear for even more precise handling, the Diamondback Haanjo 4 bike says "bring it on" to potholes, fire roads and gravel.

  • Features

    • 6061-T6 aluminum alloy frame with Endurance Geometry provides worry-free durability and all-day riding comfort
    • DB Gravel Performance full-monocoque carbon fork with 12 mm thru axle reduces the chatter on rough chip-and-seal roads and washboard sections of trail
    • Front and rear thru axles create precise handling; rear thru axle reduces lateral frame flex
    • Shimano GRX 400 10-speed drivetrain with GRX 600 cranks gives you just the right gear for any terrain
    • Grippy WTB Riddler 700c x 37 mm tires roll smoothly on pavement but can take plenty of abuse off road
    • HED Tomcat Disc wheelset is quick and takes a pounding
    • Powerful TRP Spyre C flat-mount mechanical disc brakes provide reliable braking when you need it
    • Includes DB resin platform pedals
    • Specs and images are subject to change

    Imported.

    This bike comes with Coast to Coast Support, which includes:
    • 1 year of free adjustments (see more below)
    • In-store bike assembly
    • Pickup in store or curbside
    • Bike experts available at 170+ bike shops
    REI Co-op Members get more:
    • Free flat tire repairs (labor only; parts not included)
    • 20% off shop services
    More about our free adjustments:
    New bikes go through a normal break-in period, after which they should be readjusted. All bicycles sold at REI include free adjustments for one year after purchase date—as many times as you need. Included: derailleur and brake adjustments, lateral wheel truing, hub and headset bearing adjustments, tire inflation and chain lubrication. Not included: replacement or installation of new components or accessories, any other services. Call your local REI Co-op Bike Shop for more information.

    View the Diamondback Haanjo Product Line View all Diamondback Gravel Bikes
  • Technical Specs

    Best Use

    Gravel Cycling

    Bike Frame Material

    Aluminum

    Frame

    6061-T6

    Fork

    DB Gravel Performance, full monocoque carbon, carbon 12 mm thru-axle dropouts, flat-mount disc ready with tapered steerer tube

    Bike Suspension

    No Suspension

    Crankset

    Shimano GRX 600 46/30T

    Bottom Bracket

    Shimano outboard bearing

    Shifters

    Shimano Tiagra 10-speed dual control, 2 x 10-speed

    Front Derailleur

    Shimano GRX 400

    Rear Derailleur

    Shimano GRX 400 Shadow Plus 10-speed GS

    Rear Cogs

    Shimano HG500, 10-speed cassette,11-34 T

    Number of Gears

    20 gear(s)

    Brake Type

    Mechanical Disc Brake

    Brakes

    TRP Spyre C flat-mount mechanical disc with 160 mm front and rear rotors

    Brake Levers

    Shimano Tiagra

    Rims

    HED Tomcat Disc 28 h, 21 mm internal width, tubeless ready

    Front Hub

    28 h aluminum sealed cartridge center lock, 12 mm thru axle

    Rear Hub

    28 h aluminum sealed cartridge center lock, 142 x 12 mm thru-axle cassette

    Wheel Size

    700c

    Tires

    WTB Riddler, Dual DNA compound, 700c x 37 mm

    Tire Width

    37 millimeters

    Handlebar Shape

    Drop Bar

    Handlebar

    HED, 7050 aluminum 12-degree flare, 31.8 mm bar bore

    Stem

    HED 6061 aluminum 3D Forged, +/-7 degree rise, 31.8 mm bar bore

    Seat Post

    HED 6061 aluminum, 27.2 mm

    Saddle

    WTB Silverado Race

    Pedals

    DB resin gravel platform

    Headset

    FSA No. 42 sealed cartridge

    Chain

    KMC X10EL 10-speed

    Weight

    23 pounds

    Bike Weight

    Bike weight is based on median size, as sold, or the average of two median sizes.

    Gender

    Unisex

  • Size Chart

    XS S M L XL
    Height Range 5'1" - 5'4" 5'4"- 5'8" 5'7"- 5'10" 5'10" - 6'1" 6'1" - 6'4"
    Reach 380 377 367 379 392
    Stack 535 550 583 610 633
    Effective Top Tube 525 525 545 560 580
    Seat Tube Center-Top 262.5 262.5 272.5 280 290
    Standover Height 701 727 776 811 845
    Head Tube Length 105 120 155 175 200
    Head Tube Angle (degrees) 70 70 72 72 72
    Seat Tube Angle (degrees) 75 75 73.5 73.5 73.5
    Bottom Bracket Height 280 280 280 280 280
    Wheelbase 1,033 1,039 1,041 1,041 1,062
    Chainstay 440 440 440 440 440
    Fork Offset 50 50 50 50 50

    Sizing Notes

    Measurements are stated in millimeters unless otherwise indicated.

    How we measure bikes

    1. Standover Height Standover Height is a measurement from the ground to the top of the top tube, measured at the midpoint of the top tube.
    2. Reach Reach is the horizontal distance from the center of the cranks to the center of the head tube, measured at head tube level.
    3. Stack Stack is the vertical distance from the center of the cranks to the center of the head tube, measured to the top of the head tube.
    4. Effective Top Tube Effective top tube is the distance from the center of the head tube to the center of the seat tube/seat post, measured parallel to the ground.
    5. Seat Tube Center to Top Seat Tube length is the measurement of the seat tube, from the center of the cranks to the top of the seat tube.
    6. Head Tube Length Head Tube Length is measured from the bottom to the top of the head tube.
    7. Head Tube Angle Head Tube Angle is the acute angle between the head tube and the ground (measured towards the rear of the bike)
    8. Seat Tube Angle Seat Tube Angle is the acute angle between the seat tube and the ground (measured towards the rear of the bike).
    9. Bottom Bracket Height Bottom Bracket Height is a measurement taken vertically from the ground up to the center of the cranks.
    10. Wheelbase Wheelbase is the measurement from the center of the front axle to the center of the rear axle.
    11. Chainstay Length Chainstay Length is the measurement from the center of the cranks to the center of the rear axle.
    12. Fork Offset Fork Offset, or rake, is the distance from the front axle to a line drawn parallel to the center of the head tube or steering axis.
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