Gear inch calculator

11 12 14 16 18 21 24 28 32 36 Move me. Bicycle Gear Inch Calculator Also calculates metres of development and optionally speed or cadence and gain ratio Number of chainring teeth front cog Number of sprocket teeth rear.

Bicycle Gearing And Calculating Gear Inches

Gears Derailleurs Derailleurs Cadence 90 60 120 Chainrings 22-36 22-36 Max.

. When chain-drive bikes came on the scene the gear-inch calculation was adapted to accommodate. Gear inches wheel diameter in inches number of teeth in front chainring number of teeth in rear sprocket. Calculate the key dimensions for your external spur gear.

53 front ring divided by 15 rear cog x 27 95 Gear. A 50-inch gear is the difficulty and travel equivalent of a 50-inch diameter high wheeler wheel etc. Gear Ratio Calculator Use our simple Gear Ratio Calculator to quickly find the correct gear ratio for your ring and pinion gear set.

Bicycle Gear Calculator 22 36 Move me. If you have a road bike then use 27 inches for the diameter. Chainring Teeth Cog Teeth x Rear Wheel Diameter wheel tire gear.

Ill calculate the best chainringcog combinations and skid patches for your speed and cadence and what your speed will be at various cadences. Values for gear inches typically range from 18 very low gearing via 70 medium gearing to 125 very high gearing. Let us look at an example for a road bike.

The selection of internal-gear hubs in the Calculator is complete except for one a few new models whose gear ratios have not been made public and some very rare antiques. As in a car low gearing is for going up hills and high gearing. Gear Inches are used to give a numerical value to how a particular chainwheelcog combination will feel.

Input the gears tooth count pitch or module and pressure angle to calculate the pitch diameter root diameter and outer diameter. Save yourself the headache and let us figure out your ring-and. Also calculated is the new gearing you would need in order to return back to your original.

The front chain ring has 52 teeth and one of the rear cogs has 13 teeth. Gear inches express gear ratios in terms of the diameter of an equivalent directly driven wheel and is calculated as follows. Lets use our formula to calculate the gear inch of a few common gear ratios on a standard 27 wheel road bike.

Development the distance in inches your wheel travels for one revolution of. Classic BMX gearing evolved over the years to be 4416 which has approximately 55. Gears higher than 90-inches are hard to pedal most of the time.

80 is green 50ish-80 blue and below 50 red. Use our gear ratio calculator to find the effective gear ratio your vehicle will have with a new tire size. Gears lower than 18-inches are.

52 teeth chain. This formula assumes that any hub gear is in direct drive.

Understanding Gear Ratios For Performance