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Questions and answers about sports

2 speed quad sprocket bike… do these exist? If not, why not?

4 min read

Asked by: Joshua Barbon

Do bicycles have sprockets?

Sprockets are used in bicycles, motorcycles, tracked vehicles, and other machinery either to transmit rotary motion between two shafts where gears are unsuitable or to impart linear motion to a track, tape etc.

Will a bigger sprocket faster or slower?

A bigger rear sprocket/ smaller front sprocket will give you an increase in acceleration but decrease your top speed. A smaller rear sprocket/bigger front sprocket will reduce you acceleration but increase the top speed.

How do Sprockets work on a bike?

A sprocket is a simple mechanical wheel with teeth or small notches which are designed to rotate and engage with the links of a chain or belt. To be compatible, though, they both need to have the same thickness and pitch.

What is a cog bike?

The gears on the rear wheel are called ‘cogs’ and when you put a few of them together in ascending size and attach them onto your back wheel, they are referred to as a ‘cassette’. Most bikes built in the last few years have between 8 and 11 cogs in the cassette.

How many sprockets are on a bike?

Depending on the type and age of your bike, it will probably have between 9 and 12 sprockets and will be referred to as 8-speed or 12-speed respectively. On a typical road bike, the smallest sprocket will typically have 11(11t) or 12 (12t) teeth and the largest 25 (25t) to 32 (32t) teeth.

Why does my bike have two sets of gears?

Bicycles have multiple gears so that it’s easier to go up hills, and so you can go faster on level ground.

How do I know what size sprocket I need?

Quote from video: Measure from Center to center of where the chain roller would set between the teeth. Line up the calipers with the centers or bottom of the sprocket teeth using the tape measure to measure chain.

How can I increase my bike speed?

BikeRadar’s tips to improve your average speed

  1. Pedal more. Knowing when to pedal is an important skill. …
  2. Brake less. Learning how to take corners fast will help increase average speed. …
  3. Ride in a group. …
  4. Work on your cadence. …
  5. Get more aero. …
  6. Use your bike’s gears more efficiently. …
  7. Keep track. …
  8. Train indoors.

What does changing your sprocket size do?

The purpose of changing sprocket sizes is to alter the relationship between engine speed on your tachometer and road speed on your speedometer.

What are the different types of sprockets?


  • Type A sprockets, which are only the plate with no added thickness or hubs.
  • Type B sprockets, which have a hub on one side.
  • Type C sprockets, which have hubs of equal thickness on both sides of the plate.
  • Type C offset or Type D sprockets, which also have two hubs.

What is the difference between a sprocket and a gear?

In general, a gear is a toothed wheel designed to mesh with other gears and transmit movement to them, which in turn can cause movement elsewhere. A sprocket, conversely, is a toothed wheel designed to engage and directly move a flexible indented or perforated item, like a chain or belt.

What is the difference between a cog and a sprocket?

As defined in the Merriam Webster dictionary, a cog is a tooth on the rim of a wheel or gear, but it can also be defined as a toothed wheel as well. In contrast, a sprocket is a toothed wheel whose teeth engage the links of a chain. So a sprocket is a cog that engages with a chain.

What is the largest sprocket?

The largest sprocket on a road bike cassette is generally smaller than those on mountain bikes, providing smaller jumps between gears. Most road bike cassettes have an 11, 12, or 13-tooth smallest sprocket, then between 21 and 32 teeth on the largest sprocket.

Which gear is 1 on a bike?

Gear ‘1’ on a bike is a low gear: this is the same for gears in a car. This gear is best for climbing, riding over difficult terrain, and riding slowly. This gear may also be referred to as the ‘easy’ gear.

Which sprocket is the lowest gear?

Quote from video:

What are bicycle sprockets made of?

Sprocket Materials

Cast Iron is the most common and economical material for flat wire belt sprockets, they are accurately cast from high grade iron. Other diameters can be provided on special order.

What is an 11 28 cassette?

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 faster 9 speed or 11 speed?

Are 11-Speed Cassettes Faster? 11-speed cassettes are absolutely not faster than 9-speed cassettes. The factor that determines the speed of your bike is you; the rider. Putting an 11-speed cassette on your bike will not magically produce more speed.

What cassette is best for climbing?

For hill climbing and mountainous terrain, we recommend a road cassette such as the 11-32T SRAM Red 22 XG1190 11 Speed Cassette (A2), or the 11-34T Shimano Ultegra R8000 11 Speed Cassette.