Bicycle Gear Inches Chart

If you know their numbers just input them below and we ll calculate it automatically for you.

Bicycle gear inches chart. That is combo bike history and trivia but is relevant if you wanna know which is lower a 34frong x 36rear or a 24front x 32 rear. Colors group similar values. The original calculator page is here. As in a car low gearing is for going up hills and high gearing is for going fast.

20 24 26 700c 27 650b 29 tyre dia. Using the bicycle gear inch chart highligted in yellow on the chart are combinations that are about 45 gear inches. You can use a chart to find the gear inches for you bicycles gear combinations. Also take a look at our complete bicycle gear ratio chart below to see how your size compares to other gearing options.

You can see that with every combination of chainring in the front and cog in the back you can get close to 45 gear inches. Simple just divide your rear cog size from your front chainring size. The lower the gear inch number the easier the gear. Too high tech for you.

Gear charts like this tend to bring out the inner weirdo extreme bike geek in all of us. Mtb cranks with 22 teeth small chainring and cassette with largest 34 teeth sprocket with 26 wheels gives about 17 gear inches. How to calculate bicycle gear ratio. 80 is green 50ish 80 blue and below 50 red.

1 25 1 5 1 75 1 95 2 00 2 10 2 125 2 20 2 25 2 30 2 35 2 40 â ƒother in. Colors group similar values. The sram sachs 3 x 7 3 x 8 3 x 9 3 x 10 and the sturmey archer cs rf3 and cs rk3 are the only recent current production internal gear hubs designed to use rear sprocket clusters. Values for gear inches typically range from 20 very low gearing via 70 medium gearing to 125 very high gearing.

Add mm if required. Gear inches is one of several relative measures of bicycle gearing giving an indication of the mechanical advantage of different gears. Above 100 gear inches is good for flat paved roads with strong wind at the back. 0 20 mm 23 25 28 32 35 38 44 50 56 1 00 in.

Bicycle gear size and cadence speed calculator wheel size. The sturmey archer brompton bwr takes two sprockets but other models are included in the list for the benefit of tinkerers see discussion.