Readers ask: How To Tell Bike Cog Size?

How do I know what size my bike cassette is?

Sprockets vary in size according to the number of teeth they have. A cassette may therefore be sized as 11-32t. The first number refers to the number of teeth on the smallest sprocket (the highest gear, for fast pedalling at speed) and the second number to the biggest sprocket (the lowest gear, for climbing hills).

Which COG is which gear on a bike?

Your bike is in the lowest gear when it’s easiest to pedal. You would shift into your low gear when cycling up a steep hill. The lowest gear is when the chain is on the smallest cog on the front and the largest cog on the rear.

What does an 11 32 cassette mean on a bike?

The rear cassette is 11 speed 11-32. This means there are 11 cogs ranging from 11 teeth up to 32 teeth (the exact cogs are 11/12/13/14/16/18/20/22/25/28/32). The combination of your selected chainring and cog determine the gear ratio.

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How do you determine the gear range on a bike?

The percentage figures refer to the gear range of the cassette, or the difference between the highest and lowest available gears. To work out the range of a cassette, you simply divide the largest sprocket by the smallest and then multiply this by one hundred (50 ÷ 10 = 5 x 100 = 500%).

What is an 11 28 cassette?

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.

Are all bike cassettes the same size?

Most road bike cassettes have an 11, 12, or 13-tooth smallest sprocket, then between 21 and 32 teeth on the largest sprocket. The vast majority of road bikes come with a 12-25 cassette, which is suitable for most cycling terrain when paired with a compact or standard chainset.

Which gear is 1 on a bike?

Downshifting, or decreasing the resistance, allows for faster and easier pedaling; upshifting, or increasing the resistance requires more effort and builds endurance. On your shift lever, the lowest number, No. 1, represents first gear.

What gear is easiest on a bike?

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.

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Is gear 1 high or low on a bike?

Bikes generally have 1, 3, 18, 21, 24, or 27 speeds. (10- and 15-speeds are obsolete and you don’t see them on new bikes anymore.) Lower numbers are the low gears, and higher numbers are the high gears. First gear is a low gear.

What is the difference between 11 28 and 11 32 cassette?

For the 11-32 cassette, the average change in cadence is 9 rpm when you change gears, while for the 11-28 cassette, the average change is 8 rpm. In concept this difference is intuitive, although the magnitude on average is not that different between the cassettes – just 1 rpm.

How do I know if my bike is 10 or 11 speed?

Multiply the front gear number by the rear gear number to get the number of speeds. For example, if you have two front gears and five back gears, you have a 10-speed bike.

What bike gear do you use to go uphill?

When riding uphill or into a headwind, it’s best to use the small or middle front chainring and bigger rear cogs. When riding downhill, it’s best to use the bigger front chainring and a range of the smaller rear cogs.

Is 8 gears enough on a bike?

Means no I don’t believe 8 gears is enough once he gets up to speed and fitness. 50-11 at a top gear is plenty for 95% of riders. For high speeds the number of gears is irrelevant. Hsi worry less about chain wear and more about knee wear.

What gear ratios 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.

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