Speed calculator - Wrist Twisters
 
Thread Tools Display Modes
post #1 of 2 Old 01-29-2015, 08:57 AM Thread Starter
Old, Bold rider
 
robtharalson's Avatar
 
Join Date: Jan 2007
Location: Aurora, Colorado
Posts: 2,463
Rep Power: 1
 
Garage

Awards Showcase
Donation Veteran Community Leadership 
Total Awards: 3

Speed calculator

Working on a project this morning, I needed the trans ratios for an '04 GSXR 750, and came across this site: Gearing Commander: Motorcycle Speed, RPM, Chain & Sprockets Calculator
It has over 1,000 motorcycles listed and will calculate a variety of parameters that are quite useful. Using it, I was able to find a gear set that fell right into the gear spreads / RPM drops for engine design I'm working on. Of course I double checked the information provided and it was spot on. Very cool!

Rob

If it has already been done, it is safe to assume it is possible to do it.
On the other hand, if it has not been done never assume it is impossible to do it.
------- Rob --------
robtharalson is offline  
Sponsored Links
Advertisement
 
post #2 of 2 Old 01-29-2015, 09:15 AM
"CERTIFIABLE"
 
Ken Phenix's Avatar
 
Join Date: Sep 2011
Location: Southeast Texas
Posts: 1,954
Blog Entries: 1
Rep Power: 1
 
Garage

Awards Showcase
Motorcycle Picture Game Award Extraordinary Ride Extraordinary Ride 
Total Awards: 3

Nice. Boy, where was this 15 years ago during my bike powered mini sand rail building days? I remember the most important and most difficult spec to find was the primary drive ratio. The transmission input can be geared down as much as 50% of crankshaft rpm. Most of us were not using speedometers and needed to calculate speed in a given gear at a given rpm while figuring in sprocket ratios, tire diameter and feet traveled per axle revolution.
Ken Phenix is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Wrist Twisters forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome