![]() |
View
New Forum Topics Today's Forum Topics Set as homepage |
|
|||||||
Welcome to CyclingForums.com You are currently viewing our website as a guest which gives you limited access to view most discussions. You will have to register before you can post to this thread. By joining our free online community you will have access to post new topics, communicate privately with other cyclingforums.com members (PM), respond to polls, upload photos and access other special features like product reviews and classifieds. |
|
|
|
Thread Tools | Search this Thread | Display Modes |
|
|
#1 |
|
Registered User
Join Date: Feb 2005
Location: Seattle
Posts: 1
|
Okay, help me out here. I'm wondering if anyone can tell me (approx.) what kind of CADENCE a record holder in the One Hour Record maintains!?! I'm just curious. For MY age bracket (56), which is what I'm interested in, I think the record is about 28 miles--or 28 miles per hour overall.
I can figure everything out, but get stuck when it comes to gear ratios. LOL I know how many times the wheels go around! That's simple math. But, at what rate or cadence do the cranks go 'round on a standard track bike--when you're doing 28 mph?!?!?! Sincere thanks!!! ~ Michael (in Seattle) |
|
|
|
|
|
#2 |
|
Registered User
Join Date: Aug 2004
Location: Texas
Posts: 622
|
Now where did I put that slide rule anyway....
|
|
|
|
|
|
#3 | |
|
Registered User
Join Date: Sep 2003
Location: Hamilton, Ontario, Canada
Posts: 232
|
Quote:
That depends on what gear you choose. You taylor the gear to the cadence you want to pedal at a given speed. Almost all successful hour record attempts have been completed at an average of 105 rpm cadence. So pick a gear that allows you to spin that cadence at 28 m/h. Check out analytical cycling's gear/cadence/speed calculator at www.analyticcycling.com for the math calculations.
__________________
Taras |
|
|
|
|
|
|
#4 | ||
|
Registered User
Join Date: Aug 2004
Posts: 65
|
Quote:
Quote:
http://www.kreuzotter.de/english/ecadence.htm Here's the simple math: cadence in RPM=[#of teeth sprocket]/[# teeth chainring]*[speed in MPH]/[circumference of tire in meters]*27.03(<---unit conversion factor) So assuming (not sure what the "standard" is) your track bike has 700c tires and is geared 53-14 then your cadence=14/53*28/2.1*27.03=95.2 RPM Last edited by andrello : 16-02.-2005 at 08:13 AM. |
||
|
|
|
|
|
#5 |
|
Registered User
Join Date: Aug 2004
Posts: 65
|
In case you're interested (and are algebraically crippled
) here's the speed formula:speed in MPH=[# teeth chainring]/[# teeth sprocket]*[cadence in RPM]*[circumference of tire in meters]/27.03(<---unit conversion factor) |
|
|
|