# Question: What is a good gear ratio for a mini bike?

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Ratios do vary with wheel size, weight & other conditions, however you should keep your gear ratio at approx 6 to 1. Any ratio either smaller or larger will put too much torque through the clutch and cause it to slip, which will cause the clutch to overheat and the clutch will no longer function.

## What is the best gear ratio for cycling?

High Gear Ratios

At a cadence of 90 rpm (which is very comfortable and most people can handle significantly more), a 50-tooth chainring and a 12-tooth cog gives a speed of 47 km/h. That’s a gear ratio of 4.17:1, so a highest gear ratio of around 4:1 should be sufficient for ultra-distance cycling.

## What is a 5 to 1 gear ratio?

For example, if a motor drives a 12T gear to a driven 60T gear on an arm, the 12T driving gear has to rotate 5 times to rotate the 60T driven gear once. This is known as a 5:1 ratio. The torque output is 5 times as much, however, the speed output is only 1/5.

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## What does a 4 11 gear ratio mean?

4.11 is a gear ratio.. basically it means that the the pinion or driveshaft will turn 4.11 times for each rotation of the tires. The higher the ratio, the more times the the the engine, transmission, transfer case, etc turns to make the wheels spin which yields less top speed but more low end torque (usually).

## What is a 4/10 gear ratio?

So for gear ratio of 3.73, for every one turn of the ring gear, the pinion will turn 3.73 times and for gear ratio of 4.10, for every one turn of the ring gear, the pinion will turn 4.10 times. The ratio is the number of teeth on the driven gear (ring) divided by the number of teeth on the drive gear (pinion).

## What gear should my bike be in when going uphill?

Low Gear = Easy = Good for Climbing: The “low” gear on your bike is the smallest chain ring in the front and the largest cog on your cassette (rear gears). In this position, the pedaling will be the easiest and you’ll be able to pedal uphill with the smallest amount of resistance.

## What gears do professional cyclists use?

Pros often use a 55×11-tooth high gear for time trials. On flat or rolling stages they might have 53/39T chainrings with an 11-21T cassette. In moderate mountains they switch to a large cog of 23T or 25T. These days, they’ve joined the big-gear revolution like many recreational riders.

## Can gear ratio be less than 1?

Typically, gears 5 and sometimes even 4 have ratios less than 1, which means that engine RPM will be less than wheel RPM in those gears. For example, gear ratio for 5th gear can typically be 0.9. Such gears (with gear ratios of less than 1) are called overdrive gears.

## How do I know what gear ratio I need?

The gear ratio is calculated by dividing the output speed by the input speed (i= Ws/ We) or by dividing the number of teeth of the driving gear by the number of teeth of the driven gear (i= Ze/ Zs).

## Which gear ratio is faster?

A lower (taller) gear ratio provides a higher top speed, and a higher (shorter) gear ratio provides faster acceleration. . Besides the gears in the transmission, there is also a gear in the rear differential.

## Are 3.73 gears good for highway?

Well, if you plan on doing a lot of freeway driving, you don’t want to choose a gear that’s too low for your car because you’ll be going down the freeway at too high of an RPM. … Shorter gears (higher numbers) are much better suited for accelerating, such as 3.55, 3.73, 3.91’s, 4.11’s etc.

## Is 3.42 or 3.73 better?

The 3.42 is fine for towing smaller boats, plus you will get better gas mileage for everyday driving. If I were towing frequently on hilly roads, I might would go for the 3.73 for better gas mileage while towing, but the 3.42 should be fine with a 205.

## Does gear ratio affect horsepower?

Motor HP does not change when you change gear ratios. The only thing that changes is torque. A dynamometer measures torque and RPM, and from those two values calculates horsepower. When you change gear ratios both RPM and torque will change but horsepower will not.

## Are 4.11 gears good?

4.11:1 is a “lower” gear ratio, meaning you have more torque, lower top speed, and you will generally consume more fuel. Usually people put 4.11:1 gears in trucks to be used off-road for the extra torque and the better “crawling” capabilities.

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## What gear ratio is best for fuel economy?

Automakers Offer Variety of Axle Ratios

Step one in understanding axle ratios is to know what the numbers signify. The lower the number, the better fuel economy, and the higher the number the more towing power you have, but fuel economy suffers. For instance, a 3:31 gets better fuel economy than a 3:73.

## How fast can you go with 4.10 gears?

On the highway a 4.10 gear will only be about 200 rpms more at around 75 then a 3.73. And with the Automatic you will need all the help you can get. Top Speed of our GT’s should be between 145 and 155 depending on the tune of your chip if you have one.