How do you calculate gear percentage?

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%).

Which cassette ratio is best for climbing?

All other things being equal, the 34T sprocket on the 11-34T cassette is going to give you the easiest gear. If your bike is currently fitted with an 11-28T cassette, switching to an 11-34T cassette will make climbing less of a struggle.

What does an 11 32 cassette mean on a bike?

The notation you’ve noticed simply means that for one of these cassettes, the smallest sprocket has 11 teeth, the largest has 32 teeth. And the second cassette has smallest sprocket 12 teeth, largest sprocket 25 teeth. So these numbers are basically the “range” of gears covered by a cassette.

Is a 12/25 cassette good for climbing?

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. If you ride a lot of hills or struggle with hill climbing, a cassette with a lower ratio largest sprocket (27 or more teeth) may be beneficial.

How do you read bike gear ratios?

The gear ratio, combined with the circumference of your wheel and tyre determines how far you will travel with each revolution of the cranks. This is expressed as 4.55 : 1 meaning that for every 1 turn I make of the pedals at the front, I will turn the back wheel 4.55 times. This is the gear I would use on the flat.

What is a 1 to 1 gear ratio bike?

If we have a chainring with 30 teeth and a sprocket with 30 teeth, there is no difference between the two; one full revolution of the pedals will result in one full revolution of the wheel. As a ratio, this is 1 to 1 (1:1).

Is a 11/28 cassette Good for hills?

The mountains that they climb are huge and often very steep. Many pro riders at the Tour de France use an 11-28 cassette, some are even using an 11-30 cassette. The reason is to help to control their effort and their cadence so they don’t blow up on a steep climb.

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. Campagnolo’s latest groupset is 12-speed , and one benefit is that the first seven sprockets go up in single increments.

What does 11 42t cassette mean?

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).

What is a 11/25 cassette?

It will have 11 teeth on the smallest ring of the cassette, and 28 teeth on the largest ring of the cassette. The 11 speed cassettes will have 11 diffferent cogs on the the cassette. Look at the cassette you have already. Count how many teeth are on the smallest and largest cogs of the cassette.

What is a 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 11 speed 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.

What cassette do pro 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.

What gearing does Chris Froome use?

Gearing consisted of 52/38 chainrings, and an 11-28 cassette, which he turned at an average cadence of 97rpm. Using this information, and some complicated maths, we can estimate that Froome spent most of his time using a 38×21 gear ratio.

What is an 11 speed cassette?

What is an 11 28 cassette?

How many teeth does a 11/28 cassette have?

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 11 speed bikes 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. It will, however, allow you to find the correct gear more easily.

Which is better 10 speed or 11 speed?

11 speed has one more speed than 10 speed……you need it.

What size cassette do Tour de France riders use?

The biggest it offers as standard is a 50/37t chainset and 10-28t cassette, as seen on Alex Dowsett’s bike above from the 2019 Tour.