Cadence (not the brand)

Tarckives Bikes
1

So I was snooping around Bikeforums and rolled across a cadence thread in the road forum. Which got me thinking: if 80-100rpm is a good cadence, am I geared correctly for the speed I go?

So I found this PDF:

http://www.tariksaleh.com/bike/geartospeed.pdf

Which explains how to figure it out quite easily. I have a 41x15 gearing (74 gear inches, though we’re not going to use gear inches). So at 15mph, I am doing 68rpm, not so good. At 17mph, I am doing 77rpm, much better. At 20mph, I am pulling 90rpm, which is where I should be. I’m usually anywhere between 15 and 25mph depending on the grade of the road, so maybe the gear isn’t too bad a compromise.

Thought I’d share, maybe someone is redoing their gearing and this might help.

2

send me a pm with your email and I will send you an excel chart that calculates speed from cadence (or cadence from speed) for any give gear ratio.

3

I don’t have excel.

4

burn!

5
http://software.bareknucklebrigade.com/ ... pplet.html

includes cadence and speed

6
7

you should really gear for your average speed over anything else. generally shooting for a target speed in the high teens is good for city riding.

8

Google spreadsheets.

9

yeah. just make sure you don’t google image search spreadsheets.
woah.

10

i like a medium cadence, so 60-70rpm is about ideal for me.
that gives me a 16mph or so cruising speed.

11

[quote=“thehappyrobot”]i like a medium cadence, so 60-70rpm is about ideal for me.
that gives me a 16mph or so cruising speed.[/quote]

60-70 is not medium.

12

your face isn’t medium.

13
http://software.bareknucklebrigade.com/ ... pplet.html

online calculator
input wheel, crank, cog, chain ring size

output skid patches, speed at different cadences, and maybe some other crap

14

When riding in the city… I like a higher cadence… on my kilo I run 42x16 (69.0) and sometimes 45x17 (69.6)

I don’t know my speed or cadence… I know when i spin out im going fast enough.

15

openoffice.org[/quote]

NeoOffice for the Mac.
None of that X11 crap.

16

openoffice.org[/quote]

NeoOffice for the Mac.
None of that X11 crap.[/quote]

Just get the OSX beta and you’re good, all aqua and native and shit- no more X11

17

how do you guys measure your cadence?

18

i guess just by measuring speed and checking your gears. god i was thinking of it backwards.

19

That spreadsheet is awesome. Seems I’m an 80 cadence. I always thought I spun, but being 6’4" that’s pretty spinny for me I guess

20

Good old excel, the only office application that I don’t hate.