Mach One Pro
          Entry to BMX Racing shouldn’t cost an arm and a leg. The Mach One Pro is ideal for a beginner 5'6"-5'10".
        
      
      
      
        - Influence by Speed alloy frame with reverse dropouts
- GT Top Load Stem
- GT Power Series Cr-Mo 3pc. Cranks, 110 BCD Spider
Track ready entry level race bike
Allows riders to test the waters of racing without breaking the bank
 
      
    Upgradeable Aluminum Race Frame
Influenced by the Speed Series frame allows riders to take the bike spec from amateur to pro
 
      
    Mach One Pro
The Mach One Pro is ideal for beginners 5'6"-5'10" of all ages
 
      
    Frame
          frame
          GT Mach One Race MK2, 6061 Alloy, Euro BB, Reverse Dropouts, V-Brakes, 1-1/8" Integrated H/T
        
      
    
      
      
      
      
        
        
          sizes available
          PRO
        
      
    
      
      
      
      
        
        
          fork
          GT BMX Race, Hi-Ten Steel 1 1/8" Steerer, Tapered Legs, 305mm A/C, 3/8" Dropouts
        
      
    
      
      
      
      
    
      
      
      
      
        
        
          wheel size
          20
        
      
    
  Wheels
          rims
          Alloy Single Wall, 36h
        
      
    
      
      
      
      
    
      
      
      
      
        
        
          front hub
          Steel Body, 36H, 3/8" Axle
        
      
    
      
      
      
      
        
        
          rear hub
          Steel Flip Flop Thread-on Body, Freewheel, 36h, 3/8" Axle
        
      
    
      
      
      
      
        
        
          front tire
          GT Wing 20 x 1.75"
        
      
    
      
      
      
      
        
        
          rear tire
          GT Wing 20 x 1.75"
        
      
    
      
      
      
      
        
        
          spokes
          Stainless Steel, 14g
        
      
    
  Drivetrain
          rear cogs
          16T Freewheel
        
      
    
      
      
      
      
        
        
          chain
          KMC S1
        
      
    
      
      
      
      
        
        
          crank
          GT Power Series Tubular Cr-Mo 3pc., 175mm Arms, 19mm x 8T Splined Spindle, 110 BCD Steel Spider, GT 44T Steel Chainring
        
      
    
      
      
      
      
        
        
          bottom bracket
          Euro Sealed Bearing
        
      
    
      
      
      
      
    
      
      
      
      
        
        
          pedals
          GT Low Profile FS Platform Design
        
      
    
  Cockpit
          handlebar
          GT Race, Steel, 8.25"H x 29"W, 3° Up, 11° Back
        
      
    
      
      
      
      
        
        
          stem
          GT Top Load, 50mm
        
      
    
      
      
      
      
        
        
          grips
          GT Statement
        
      
    
      
      
      
      
        
        
          headset
          1-1/8" Sealed Integrated (41.8 x 45)
        
      
    
      
      
      
      
        
        
          seatpost
          Alloy, 27.2mm x 200mm
        
      
    
      
      
      
      
        
        
          saddle
          Railed
        
      
    
      
      
      
      
    
  Brakes
          brakes
          Alloy V-type
        
      
    
      
      
      
      
        
        
          brake levers
          Alloy V-type
        
      
    
  
        Please note that, based on component availability and other factors, specifications are subject to change without notice.
      
    Fit Guide
- Micro
- 
          2'0" - 4'0"
- Mini
- 
          4'0" - 4'4"
- Junior
- 
          4'3" - 4'7"
- Expert
- 
          4'6" - 5'5"
- Expert XL
- 
          5'2" - 5'6"
- Pro
- 
          5'4" - 5'8"
- Pro XL
- 
          5'7" - 6'0"
- Pro XXL
- 
          6'0" - 6'5"
- Pro XXXL
- 
          6'0" - 6'5"
- Pro XL 24"
- 
          5'6" - 6'5"
Geometry
| Sizes (in) | LG | 
|---|---|
| Top tube actual | 20.75 | 
| Head tube angle | 74° ° | 
| Seat tube angle | 72° ° | 
| Standover | 7 | 
| Head tube length | 4.33 | 
| Wheelbase | 37.46 | 
| Front center | 23.22 | 
| Chainstay length | 14.37 | 
| Bottom bracket height | 11.3 | 
| Seat post diameter | 1 | 
| Axel to crown | 12.42 | 
| Dropouts | 10mm | 
| Head tube type | Integrated | 
| Brake mounts | V-Brake | 
| Rider area | 22.39 | 
| Bottom bracket type | Threaded | 
| Fork rake | 1.38 | 
| Axel to crown | 12.42 | 
 
      
      
     
      
      
     
      
      
     
      
      
    