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Superfly 26

Model 17208

Superfly 26 is our fastest hardtail mountain bike for kids. It's equipped with 26˝ wheels, a performance SRAM drivetrain and a fabulous suspension fork with 90 mm of travel. This race-ready hardtail is inspired by super-fast adult hardtails, but built from the ground up with a child-specific geometry. It's the fast and fun way to fuel your kids' podium dreams. Fit for riders 146-160 cm/58-63˝ tall.

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It's right for you if...

Your kid is serious about mountain biking. They're getting awfully close to passing you on the trails, and are ready to try their hand at racing. You want them to ride the best kids' hardtail we make.

The tech you get

A lightweight Alpha Gold Aluminium frame, agile 26˝ wheels, a 1x11 SRAM drivetrain to power up varied terrain, hydraulic disc brakes for ultimate all-weather stopping power and an X-Fusion Velvet suspension fork that's tuned for lighter riders. Plus, an e2 tapered steerer and lower top tube for more confidence and control.

The final word

Superfly 26 is our fastest hardtail for kids. It's head-and-shoulders above traditional kids' bikes, with a quality, race-ready spec that would impress riders of any age.

favorite_borderWhy you'll love it

  1. Superfly 26 is a performance hardtail that stands up in every way to our adult race bikes
  2. Nothing says 'family bonding' quite like shredding some singletrack and exploring trails together
  3. Mountain biking is fun, and this bike lets young riders experience the magic of the trail with a bike built just for them
  4. Smooth disc brakes for capable, confident stopping



  • Frameset

    26˝ Dialed frame size, Alpha Gold Aluminium
    X-Fusion Velvet RL, air spring, rebound, lockout, E2 tapered steerer, 90mm travel
  • Wheels

    Front hub
    Formula DC20 alloy
    Rear hub
    Formula DC22 alloy
    Bontrager AT-650 32-hole double-walled alloy
    Bontrager XR2, 26x2.20˝
  • Drivetrain

    SRAM NX, 11 speed
    Rear derailleur
    SRAM NX, 30T X-Sync
    Bottom bracket
    Sealed cartridge
    SRAM PG-1130, 11-42, 11-speed
    SRAM PC-1110
    Dialed 9/16˝, platform
  • Components

    Dialed 24˝ size, padded
    Bontrager, 2-bolt head, 27.2 mm, 8 mm offset
    Bontrager alloy, 31.8 mm, 15 mm rise
    Bontrager Race
    Bontrager alloy, 31.8 mm, 7-degree, w/computer and light mounts
    Head set
    Integrated, cartridge bearing, sealed, 1-1/8˝ top, 1.5˝ bottom
    Brake set
    Tektro M285 hydraulic disc
  • Weight

    12.65 kg/27.89 lb
    Weight limit
    This bike has a maximum total weight limit (combined weight of bicycle, rider and cargo) of 77 kg (170 lb).
We reserve the right to make changes to the product information contained on this site at any time without notice, including with respect to equipment, specifications, models, colors, and materials.
Bike and frame weights are based on Trek pre-production painted frames at the time of publication. Weights may vary in final production.

Sizing & fit

Proper bike fit is essential for best performance and comfort. Any size and geometry measurements shown on trekbikes.com are for general comparison purposes only. To find your perfect fit, visit an authorised Trek retailer, where an expert skilled at sizing will help you find the appropriate bike and size for your individual needs.


Rider Height

All measurements provided in cm unless otherwise stated.

A — Seat tube B — Seat tube angle C — Head tube length D — Head angle E — Effective top tube G — Bottom bracket drop I — Offset J — Trail K — Wheelbase L — Standover M — Frame reach N — Frame stack
32.0 74.5° 10.0 70.0° 51.5 4.5 4.1 7.4 100.8 65.2 36.2 55.3
32.0 74.5° 10.0 70.0° 51.5 4.5 4.1 7.4 100.8 65.2 36.2 55.3

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