Motorcycle Calculators
Free motorcycle calculators for fuel range, lean angle, chain slack, tire size, suspension sag, horsepower, and gear ratios.
Built for riders and mechanics.
Motorcycle Chain Link Calculator
Find how many chain links to add or remove after changing sprocket sizes. Enter original and new sprocket tooth counts and current chain length.
Motorcycle Tire Size Comparison Calculator
Compare two motorcycle tire sizes for overall diameter, clearance change, and speedometer error. Enter sizes in standard format such as 180/55R17.
Motorcycle Helmet Replacement Schedule Calculator
Calculate when to replace your motorcycle helmet by age, drops, and use frequency. Get safety guidance for DOT, ECE, and Snell-certified helmets.
Motorcycle Tire Balance Weight Calculator
Estimate motorcycle tire balance weight by tire size and rim type. Get typical wheel weight needed in grams and ounces for static and dynamic balancing.
Motorcycle Chain Wear Calculator
Check if your motorcycle chain is worn and needs replacement. Enter measured chain length to calculate stretch percentage and remaining life.
Motorcycle Chain Slack Calculator
Find the right chain slack from swingarm length, rear suspension travel, and bike type. Published ranges for sport, touring, race, and motocross bikes.
Motorcycle Cornering Speed Calculator
Calculate maximum cornering speed from turn radius and road grip. Returns km/h and mph, the lean angle it demands, and a 75% margin for dry, wet, and gravel.
Motorcycle Fuel Range Calculator
Calculate how far your motorcycle can travel on a full tank. Enter tank size, fuel consumption, and reserve level to plan your ride.
Motorcycle Lean Angle Calculator
Calculate your motorcycle lean angle from corner speed and radius. Understand the physics of cornering and your tyre's grip limits.
Motorcycle Riding Calories Burned Calculator
See how many calories you burn riding a motorcycle per hour, based on ride length, riding style, and city or highway traffic. More than most people expect.
Motorcycle Service Interval Calculator
Track your next motorcycle service from odometer reading, last service, and interval. Returns km remaining, percent of interval used, and months at your pace.
Motorcycle Sprocket Ratio Calculator
Calculate the effect of changing front or rear sprockets on your motorcycle speed, RPM, and acceleration. Plan your gearing changes.
Motorcycle Suspension Sag Calculator
Calculate motorcycle front fork and rear shock sag in mm from three points. Returns spring preload adjustment and target sag for sport, touring, and off-road.
Motorcycle Tire Pressure Temperature Calculator
Calculate motorcycle tire pressure change from ambient temperature using Gay-Lussac gas law. Pressure typically rises 4-6 PSI from cold to riding.