Hotrock 24


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Your little one might love to ride, but that doesn't mean they'll be doing Trans-Provence this summer. That's why we made our Hotrock 24 with plenty of gear range to tackle the neighborhood hills, and enough front-end travel to ride beginner's trails confidently.

Of course, it also features a lightweight and tough A1 Premium Aluminum frame that's designed to take a hit while they find their legs on the pump track. Chatter and bumps, meanwhile, are handled by the coil-sprung SR Suntour fork's 50mm of travel.

Then there are a whole host of other components that are plenty tough enough to stand up to your little ripper, so you can rest assured that you'll be spending more time riding with your kid and less time waiting in line at the repair counter.

  • Tough, light, and durable, the A1 Premium Aluminum frame is built to stand up to years of tough riding.
  • SR Suntour XCT-JR suspension fork offers 50mm of coil-sprung travel that smooths out bumpy, rough terrain.
  • 24-inch Renegade tires provide plenty of grip both on- and off-road.





  • BOTTOM BRACKET: BSA, square taper, E-type
  • CHAIN: KMC HV500
  • CRANKSET: Forged alloy, square taper, 152mm w/ chainguard
  • SHIFT LEVERS: Shimano Tourney, grip shift, 8-speed
  • CASSETTE: SunRace, 8-speed, 11-34t
  • CHAINRINGS: Steel, 30T
  • REAR DERAILLEUR: Shimano Tourney TX, 8-speed



  • FORK: SR Suntour XCT-JR, coil spring w/ preload adjust, 1-1/8" steerer, quick-release, V-brake & post-mount disc compatible, 40mm offset, 50mm of travel



  • SADDLE: Specialized Kids' Henge
  • SEAT BINDER: Bolt-type, 31.8mm
  • SEATPOST: Alloy, single-bolt, 27.2MM
  • HANDLEBARS: Double-butted alloy, 5-degree backsweep, 25.4mm
  • STEM: 20-degree rise, 25.4mm
  • GRIPS: Specialized, slip-on


Wheels & Tires:

  • FRONT HUB: Alloy, loose ball bearings, bolt type, 32h
  • REAR HUB: Shimano Tourney, 8-/9-speed freehub, 32h
  • INNER TUBES: Schrader valve
  • SPOKES: Stainless, 14g
  • RIMS: 24" alloy, 16mm depth, 21mm internal width, 32h
  • FRONT TIRE: Renegade, 26 TPI, wire bead, 24x2.1"
  • REAR TIRE: Renegade, 26 TPI, wire bead, 24x2.1"



  • FRONT BRAKE: V-brake w/ tool-less reach adjust brake lever
  • REAR BRAKE: V-brake w/ tool-less reach adjust brake lever



  • PEDALS: Nylon platform w/ reflectors



  • FRAME: Specialized A1 Premium Aluminum, single-butted, unisex frame, replaceable derailleur hanger


* Specifications are subject to change without notice


  • Crank Length: 152mm
  • Stem Length: 70mm
  • Seatpost Length: 300mm
  • Saddle Width: 135mm
  • Handlebar Width: 600mm
  • Reach: 354mm
  • Top Tube Length, Horizontal: 519mm
  • Stack: 540mm
  • Wheelbase: 999mm
  • Chainstay Length: 410mm
  • Front Center: 592mm
  • BB Drop: 35mm
  • BB Height: 221.5mm
  • Seat Tube Angle: 73°
  • Head Tube Angle: 69°
  • Seat Tube Length: 312mm
  • Head Tube Length: 130mm
  • Bike Standover Height: 548mm
  • Fork Rake/Offset: 40mm
  • Fork Length, Full: 415mm
  • Trail: 56mm
NOTICE: Some products in this store can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Please check the product label for warning information. For more information go to P65Warnings.ca.gov. We cannot ship any products into California that are affected by Proposition 65.

SHIPPING CHANGES: Due to new sales tax rules in the state of Colorado, effective June 1, 2019, purchases made online through JAX Mercantile for customers in the state of Colorado will only be able to be shipped to addresses within JAX current tax jurisdictions in Fort Collins, Loveland, Lafayette, and Broomfield. Customers in the state of Colorado who do not have shipping addresses within these zip codes may still opt for in-store pickup at any JAX store location when making a purchase on the JAX website. Learn more on our shipping and returns page.

Customer Service: 1-800-336-8314 Monday - Friday 9am to 5pm MTN