« previous next »
Pages: [1]   Go Down

Author Topic: Revs speed ratio  (Read 403 times)

Offline a101960

  • Wise & Enlightened
  • *
  • Join Date: Sep 2007
  • Posts: 1034
  • Karma: 11
  • BSA RGS BSA C12
Revs speed ratio
« on: 06.07. 2013 10:01 »
My bike at an indicated 60 mph is showing an indicated 3500 rpm on the rev counter in 4th gear. As a matter of interest is this about right?

John
Logged

Online chaterlea25

  • Wise & Enlightened
  • *
  • Join Date: Jun 2009
  • Posts: 3152
  • Karma: 45
Re: Revs speed ratio
« Reply #1 on: 06.07. 2013 23:04 »
HI John
It depends on the primary gearing ?

HTH
John
Logged
1961 Super Rocket
1963 RGS (ongoing)

Online muskrat

  • Global Moderator
  • Wise & Enlightened
  • **
  • Join Date: Jul 2009
  • Posts: 8114
  • Karma: 106
  • Lake Conjola NSW Oz
    • Shoalhaven Classic Motorcycle Club Inc
Re: Revs speed ratio
« Reply #2 on: 07.07. 2013 14:46 »
That would be pretty close John. My cafe reads 3250 at 60 with tall primary gearing (= to a 24 engine sprocket).
Cheers
Logged
'51 A7 plunger, '57 A7SS now A10CR,  '83 CB1100F, .
Australia
Muskys Plunger A7
Pages: [1]   Go Up
« previous next »