Stomper Ace 24
The Stomper Ace 24 packs years of knowhow in a perfectly sized junior mountain bike: lightweight GT aluminum MTB frame comes with LegitFit geometry for improved handling, while the Ace spec level means MicroSHIFT gears for durability, disc brakes for secure stopping, and GT’s classic styling that sets it apart from the rest.
Frame
          frame
          24" GT LegitFit Design, Alloy w/ Replaceable Hanger
        
      
    
      
      
      
      
        
        
          sizes available
          One Size
        
      
    
      
      
      
      
        
        
          fork
          All Terra CH-565, 50mm, Coil
        
      
    
      
      
      
      
    
      
      
      
      
        
        
          wheel size
          24
        
      
    
  Wheels
          rims
          All Terra Double Wall, 28h
        
      
    
      
      
      
      
    
      
      
      
      
        
        
          front hub
          Alloy Disc QR, 28H
        
      
    
      
      
      
      
        
        
          rear hub
          Alloy Cassette, QR
        
      
    
      
      
      
      
        
        
          front tire
          Kenda Small Block Eight 24 x 2.10"
        
      
    
      
      
      
      
        
        
          rear tire
          Kenda Small Block Eight 24 x 2.10"
        
      
    
      
      
      
      
        
        
          spokes
          Stainless Steel, 14g
        
      
    
  Drivetrain
          rear derailleur
          microSHIFT RD-M26L
        
      
    
      
      
      
      
    
      
      
      
      
        
        
          shifters
          microSHIFT TS39-8, 8-speed
        
      
    
      
      
      
      
        
        
          rear cogs
          Sunrace CSM55, 11-34, 8-speed
        
      
    
      
      
      
      
        
        
          chain
          KMC Z7, 7-speed
        
      
    
      
      
      
      
        
        
          crank
          Prowheel w/ Double Guard, 30T, 130mm
        
      
    
      
      
      
      
        
        
          bottom bracket
          Cartridge Sealed
        
      
    
      
      
      
      
    
      
      
      
      
        
        
          pedals
          GT BMX Flat Pedal, Resin
        
      
    
  Cockpit
          handlebar
          Alloy Riser Bar, 30mm Rise, 580mm Width
        
      
    
      
      
      
      
        
        
          stem
          Alloy Ahead, 30mm
        
      
    
      
      
      
      
        
        
          grips
          GT MTB
        
      
    
      
      
      
      
        
        
          headset
          1 1/8" Ahead
        
      
    
      
      
      
      
        
        
          seatpost
          Alloy Micro Adjust
        
      
    
      
      
      
      
        
        
          saddle
          GT MTB
        
      
    
      
      
      
      
    
  Brakes
          brakes
          Promax Mech Disc, 160/160mm Rotors
        
      
    
      
      
      
      
        
        
          brake levers
          Alloy V-type
        
      
    
  
        Please note that, based on component availability and other factors, specifications are subject to change without notice.
      
    Fit Guide
- 12" Wheels
- 
          2'10" - 3'4"
- 16" Wheels
- 
          3'4" - 4'0"
- 20" Wheels
- 
          4'0" - 4'5"
- 24" wheels
- 
          4'3" - 4'8"
- 26" wheels
- 
          4'3" - 4'8"
Geometry
| Sizes (mm) | One Size | ||
|---|---|---|---|
| Seat tube length | 255 | 300 | 350 | 
| Top tube horizontal | 452 | 499 | 512 | 
| Top tube actual | 422 | 495 | 500 | 
| Head tube angle | 69.5 ° | 67 ° | 67 ° | 
| Seat tube angle | 68 ° | 71 ° | 75 ° | 
| Standover | 516 | 611 | 665 | 
| Head tube length | 88 | 102 | 102 | 
| Wheelbase | 839 | 1002 | 1041 | 
| Front center | 474 | 585 | 615 | 
| Chainstay length | 366 | 417 | 428 | 
| Bottom bracket drop | 23 | 26 | 35 | 
| Bottom bracket height | 243 | 291 | 308 | 
| Fork rake | 40 | 40 | 40 | 
| Trail | 57 | 91 | 102 | 
| Stack | 411 | 512 | 555 | 
| Reach | 286 | 336 | 350 | 
| Travel front | 40 | 60 | 80 | 
| Travel rear | N/A | N/A | N/A | 
 
      
      
    