Turboem1

hey guys I am looking for a gearing calculator. I couldnt find it on google or sheldonbrowns web site.

Anyway something where you can type in the gear, cadence and tire size and it will tell you your speed. Do they have something like that?

Say like 50-14 at 90rpm with a 700x25 tire. Then it tells you XX.XX mph.

Thanks

Hammertoe

I use this one and find it slightly more user friendly than Sheldon's...

Enter gearing and wheel size....

Submit values....add cadence to get MPH....

https://www.panix.com/~jbarrm/cycal/cycal.30f.html

lvleph

Delete

531Aussie

This gear roll-out chart can help you work out speeds, but you have to do more work
The values are roll-outs for 1 rev, in metres

I took it from the bottom of this page:
https://www.analyticcycling.com/Power...Gear_Disc.html

.......39......42.......52.....53
11 7.474 8.049 9.965 10.157
12 6.851 7.378 9.135 9.310
13 6.324 6.810 8.432 8.594
14 5.872 6.324 7.830 7.980
15 5.481 5.902 7.308 7.448
16 5.138 5.534 6.851 6.983
17 4.836 5.208 6.448 6.572
18 4.567 4.919 6.090 6.207
19 4.327 4.660 5.769 5.880
20 4.111 4.427 5.481 5.586
21 3.915 4.216 5.220 5.320
22 3.737 4.024 4.983 5.078
23 3.574 3.849 4.766 4.858
24 3.426 3.689 4.567 4.655
25 3.288 3.541 4.385 4.469
26 3.162 3.405 4.216 4.297
27 3.045 3.279 4.060 4.138
28 2.936 3.162 3.915 3.990


Sheldon Brown has a gear calculator, but I haven't used it

https://www.sheldonbrown.com/gears/