TRX250R Gear, Tire, RPM, Speed Calculator



Select Year, Aftermarket Gear Mfgr., or Enter Custom Gear Ratio:    
Max RPM:
Idle RPM: (optional)
Max Torque RPM: (optional)
Max Power RPM: (optional)
Shift Down RPM: (optional)
Shift Up RPM: (optional)
 
Tire Size:
(Diameter x Width x Rim Diameter)
x x
Compare:
(Diameter x Width x Rim Diameter)
x x  
 
Main  Counter     Ratio
Primary:
(crank & clutch)
/      
1st Gear: /    
2nd Gear: /    
3rd Gear: /    
4th Gear: /    
5th Gear: /    
6th Gear: /    
   
Sprockets:
(Front & Rear)
/    
Compare:
(Front & Rear)
/  
Choose Speed Units & Interval Break:
mph     km/h         
Calculated Change Between Tire & Sprocket Changes:
 
  Tire Rollout (Circumference) 
Tire Rollout:
Tire Rollout 2:
 



Created by havinnoj for the TRX250R.ORG Forums