Nederlands | English | Deutsch

Project Sports

Questions and answers about sports

What is the best gear ratio for speed on 20inch frame

6 min read

Asked by: Christy Martin

What bike gear ratio is best for speed?

around 2.7-2.8

If you’re just starting out on your adventure on a single speed or fixed gear bike, a gear ratio of around 2.7-2.8 will be ideal.

What gear ratio is for speed?

The gear ratio is the ratio of input teeth to output teeth (e.g., with 10 teeth on the input and 20 teeth on the output, the gear ratio is 10/20 or 0.5 : 1 . The speed ratio is the ratio of output speed to input speed (e.g., with a gear ratio of 0.5 , the output speed will be 0.5 that of the input speed).

What is the best gear ratio for BMX racing?

Classic BMX gearing evolved over the years to be 44/16, which has approximately 55 gear inches. The most popular gear ratios are pretty close to a 55 inch, which just seems to feel best for most people. The number is derived from a simple formula: (chainring size / cog size) X wheel size.

Which gear goes the fastest on a bike?

High Gear = Hard = Good for Descending: The “highest” gear on your bike is the largest chain ring in the front and the smallest cog on your cassette (rear gears). In this position, the pedaling will be the hardest and you’ll be able to accelerate while traveling downhill.

Is 46 16 A good gear ratio?

A 46/16 gear ratio (2.88) on the other hand, provides higher top speeds, and is more efficient than the 44/16 – however acceleration will be more difficult. The 46/16 will permit you to travel farther with each pedal (you’ll basically have longer legs) and therefore cover more distance with less effort.

What gearing do Tour de France riders use?

A 53/39t chainset is common, with a smaller 36t inner chainring available for mountain stages. Cassette options include two choices, an 11-29t and 11-32t.

Does higher gear ratio mean faster?

Gear ratios can be boiled down to a single statement: Higher ratios (with a lower numerical value) give better torque/acceleration and lower ratios allow for higher top speeds and better fuel economy. Higher ratios mean the engine has to run faster to achieve a given speed.

What are 4.10 gears good for?

This equates to a greater amount of power transferred to the wheels. Installing 4.10 gears improves the car’s performance on the track but with negligible effects to the highway driving. If your car is equipped with an overdrive, you may not even notice a difference in gas mileage with the new higher gearing.

Are 3.73 or 4.10 gears better?

3.73 VS 4.10 Ratio

3.73 Ratio 4.10 Ratio
Not as fast off of the line Quicker Off The Line
Lower Torque Higher Torque
Better Gas Mileage Decreased Gas Mileage
Higher Top Speed Lower Top Speed

How can I make my BMX faster?

Quote from video: Make sure your wheel spins nice and smooth. Make sure you don't have any side to side jiggle in your wheel by loosening your bearings too much there's a sweet spot.

How can I make my BMX race faster?

Quote from video: Another way that we can easily get faster away from the track is doing strength. Work power work some of you older guys are you guys going to the gym.

What sprocket size is best for BMX?


Old BMX bikes were equipped with 48T (teeth) sprockets, however this is not a standard size anymore. Most common sprocket size today is 25T or 28T with 23,7mm bore. There are two basic sprocket types – bolt drive and spline drive. Bolt drive sprocket is attached to the crank arm with a bolt.

What is the best chainring combination?

Standard Setup. Currently, the most common gearing setup on new road bikes is a 50/34 chainset with an 11-28 cassette. This means that the big and small chainring have 50 and 34 teeth, respectively, and the cassette’s smallest cog has 11 teeth and its largest cog has 28 teeth.

What is a good gear ratio for hill climbing?

You will need even lower gear ratios for steep hills that are 8% or more. The most preferred gear ratios on such tracks are 50/34, 40/34, 36/40, 34/36, 34/32, 34/30, and 32/20. However, remember that using gears with such a low ratio will cause you to pedal more, but it will require less effort.

Which is faster single speed or fixed gear?

Quote from video: So yeah who knew the fixie is faster just a little bit but still faster that brings me to the second point that I may be starting to appreciate it with the fixie. And that's the control.

What is gear 7 on a bike?

Number 1 on your right shifter is the easiest gear for climbing hills, as it puts your chain on the largest rear sprocket. Number 7 on your right shifter is the hardest gear for going really fast, and it puts your chain on the smallest rear sprocket.

Is a 11/28 cassette Good for hills?

When you have built up your leg muscles and are powering up most hills, swap a lower range cassette, such as an 11-28, back in. You don’t need to do this if you are a frequent cyclist, young, with strong legs, fitter than average, or if you live in a flat place with no hills.

What is the best gear ratio for climbing hills?

You will need even lower gear ratios for steep hills that are 8% or more. The most preferred gear ratios on such tracks are 50/34, 40/34, 36/40, 34/36, 34/32, 34/30, and 32/20. However, remember that using gears with such a low ratio will cause you to pedal more, but it will require less effort.

Is 1x good for climbing?

The short answer is – it depends. It comes down to the type of rider you are and the terrain you will be riding most. 2x gives you a wider range and makes it easier to tackle steep climbs, while the 1x is much easier to operate and is less prone to chain drops.

Is 2X faster than 1x?

The 1X system is 0.9% slower than a 2X drivetrain which results in a 3 minute and 50 second time penalty over 100km. When travelling at faster speeds, the higher wind drag negates the additional frictional losses resulting in the 1X drivetrain being 0.3% slower.

Is 3X faster than 1x?

Gear range of different drivetrains:

In the above example of bikes with common drivetrains, the 1X bikes top out at 47 to 48KPH in their highest gear, while a 2X or 3X bike will offer 15-20% more speed, topping out at 56 to 57KPH.