The BSA A7-A10 Forum

Technical (Descriptive Topic Titles - Stay on Topic) => A7 & A10 Engine => Topic started by: spyke on 29.08. 2011 09:19

Title: revs
Post by: spyke on 29.08. 2011 09:19
Hi Chaps,
For you guys with rev counters ,what would you think revs are at about 55mph in top gear? Im trying to sort my gearing out and although i dont have a rev counter on board i can hold a temporary inductive one on for this excersise.
Cheers Spyke
Title: Re: revs
Post by: Beezageezauk on 29.08. 2011 09:49
Hi Spyke,

Check out the link and spreadsheet that T20racerman and MG recently uploaded.  These will answer your question and many more.

Go to the "Clutch, Primary, Gearbox" section and check out the thread entitled  "Vaguely useful spreadsheet to calculate speed from different sprocket set ups".  It's only recent so it will be close to the top of the list.

When you open it up click on the link for the Sprocket Set up information and/or scroll down the thread to find the Gear Ratio Spreadsheet.

These are both excellently presented and easy to understand.

Beezageezauk.