Road Bike Cassette Ratios Explained

Why are road bike gears getting.

Road bike cassette ratios explained. 3 is green 2 3 blue and below 2 red. Gear ratios explained for triathlon. Using a compact chainset and the same 11 28 range cassette allows for ratios as. Cassettes generally offer gears in the range of 11 25 or 11 28.

Most road bikes will come with 11 12 or 13 teeth on the smallest sprocket and then will have anywhere between 21 and 32 teeth on the largest sprocket. They typically differ from road bike cassettes in having greater gaps in gearing between each sprocket. When choosing cassettes you can choose a cassette that has a narrow range of ratios but closely spaced between each cog or you could choose a cassette that offers a wide range of ratios but at the cost of bigger jumps between cogs. For example a 53 28t crankset combined with a 7 speed 11 19t cassette will provide the same number of discrete ratios as a standard crankset paired with an 11 speed 11 27t cassette as shown in.

Road bike cassettes for climbing. Attempting to push pro level gearing can be a recipe for disaster if your bike. Most road bike cassettes have an 11 12 or 13 tooth smallest sprocket then between 21 and 32 teeth on the largest sprocket. Colors group similar values.

Cassette read gears as mentioned earlier today s bikes typically come with 8 to 11 cogs in a cassette. Standard which is commonly 53x39 and compact commonly 50x34. A typical gear spread for an mtb cassette the amount of teeth on the smallest and largest sprockets would be 11 34t. Road bike cassettes will have smaller sprockets with a smaller jump between the teeth sizes when compared to mountain bike cassettes.

The largest sprocket on a road bike cassette is generally smaller than those on mountain bikes providing smaller jumps between gears. On a road bike you have two choices of chainset. Most mtb bikes use 9 10 11 or 12 speed cassettes although more budget models may use 8 or less commonly 7 speed.