Zize Bikes Yonder Mountain Bike

Color: Silver
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Members get an estimated $280.00 back on this item as a part of your annual .

Members get an estimated $280.00 back on this item.
To buy,  sign in as an REI Co-op Member or join now.

The only mountain bike designed specifically for riders up to 550 lbs. the Zize Bikes Yonder bike offers a balanced ride that moves comfortably along gravel trails or wide, flowing logging roads.

  • Features

    • Factory-tested for riders up to 550 lbs.—the maximum load by other bike builders is typically 300 lbs.
    • Built to use for years and years—each component is selected first for significantly higher strength than standard bikes, and then for durability
    • Aircraft-grade chromoly frame with TIG welding is exceptionally strong and built to last
    • 36 spokes and extra-wide hubs (135 mm front and 170 mm rear) increase wheel strength, and wider, aluminum rims allow you to ride smoothly with increased control
    • Extra-wide 100 mm bottom bracket and steel pedals create a natural, secure stance for heavy riders and distribute weight and torque over a wider area
    • Wide (26 x 3.0 in.) tires with a rugged tread and tough grip are ideal for stable, puncture-resistant riding on uneven terrain
    • High-strength cranks withstand increased pedaling force from heavy riders
    • Clark M2F hydraulic disc brakes provide superior stopping power
    • Reliable Shimano Deore drivetrain has 10 gears that shift smoothly to adapt to varying terrain and a secure chain that won't fall off
    • Wider, shock-absorbing seat attaches to a double-clamped seatpost to keep the saddle in place
    • The wide, upright handlebar is attached to a substantial, adjustable stem that allows for an upright cycling position so you can take in the great country views
    • All features are designed to work together and create a balanced, sturdy ride
    • Specs and images are subject to change


    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 all Zize Bikes Rigid Mountain Bikes
  • Technical Specs

    Best Use

    Mountain Biking

    Mountain Bike Style






    Bike Suspension

    No Suspension


    Prowheel, 11/128 in., 38T, steel

    Bottom Bracket



    Shimano Deore, 10-speed Rapidfire

    Rear Derailleur

    Shimano Deore, 10/11-speed

    Rear Cogs

    Sunshine, MTB-CS-HR10-36, 11-36T

    Number of Gears

    10 gear(s)

    Brake Type

    Hydraulic Disc Brake


    Clark M2F


    Ming Da, 26 in., 14-gauge, 3-holes, double-wide aluminum

    Front Hub

    An Teng 14-gauge, 36h, 135 mm, 175 mm

    Rear Hub

    SF 14-gauge, 36h, 170 mm, 210 mm

    Wheel Size

    26 inches


    Compass, 27 TPI wire bead

    Tire Width

    3 inches

    Handlebar Shape

    Riser Bar


    Ruian, 31.8 mm bar bore, 9 deg., 640 mm rise


    Kalloy, 31.8 mm, ext

    Seat Post

    Ruian, 32 mm, 350 mm


    DDK, bumper with elastomer D2 base


    HF, 9/16D boron axle alloy


    XR, 28.6 steel with 5.3 mm alloy cone spacer without top cap


    PYC, 1/2 in., 11/128 in., 116L silver/black 10-speed


    53 pounds

    Bike Weight

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



  • Size Chart

    Height Range5'8''-6'0''5'10''-6'2''6'3''-UP

    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.
  • Reviews
    1 reviews with an average rating of 5.0 out of 5 stars

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