RPM vs MPH

Reply Subscribe

Thread Tools

Search this Thread

Jul 24, 2008 | 10:47 AM

#11

bagman1

Grand HDF Member

Joined: Dec 2007

Posts: 4,999

Likes: 55

From: Bay Area

RE: RPM vs MPH

Now that I have a 103 kit and International frt sprocket (-2 teeth) in 6th at 3k-3100 is a perfect minimum w/o lugging Im at 81-82 mph, otherwise 70-75 in 5th at about 34-3500 (but she sounds good there)

Jul 24, 2008 | 11:44 AM

#12

garyhendley

Outstanding HDF Member

Joined: Feb 2008

Posts: 2,706

Likes: 1

From: Sunland, CA

RE: RPM vs MPH

+1 on the sound and feel-ride safe

Jul 24, 2008 | 12:43 PM

#13

crackercap

Road Master

Joined: Apr 2007

Posts: 857

Likes: 1

From: Waynesboro, Va

RE: RPM vs MPH

ditto&nbsp\\;to that, shift by feel and ear, works everytime

Jul 24, 2008 | 12:59 PM

#14

FLHT

Outstanding HDF Member

Joined: Oct 2006

Posts: 2,340

Likes: 2

From: Omaha Nebraska

RE: RPM vs MPH

Quote:

ORIGINAL: SoCal_Pappy

6th over 70MPH
Learn to shift by listening to the Engine. Youll know When its right to shift.

BINGO!

Jul 24, 2008 | 01:17 PM

#15

RoadKing_Al

Road Captain

Joined: Oct 2007

Posts: 602

Likes: 2

From: Lakewood, N.J.

RE: RPM vs MPH

RPM &amp\\; MPH have nothing to do with when you shift. It's all about load (the total weight) &amp\\; incline or decline (which all effect the gross load). IF the bike &amp\\; you only weighed a 100 lbs (a hypothetical weight) you could probably start off in 4th gear instead of 1st (but we don't).
So you should go by the sound of the engine. I do. Drove a semi for years and never used the tach. Tachs are for racing in my opinion.

Jul 24, 2008 | 01:17 PM

#16

JJAA

Cruiser

Joined: Dec 2006

Posts: 156

Likes: 0

From: Toulouse (SW of France)

RE: RPM vs MPH

Quote:

ORIGINAL: glens
Here is an image of a spreadsheet I have. I typically shift at 20, 30, 40, 50, and 60. No lugging whatsoever, but I have freer-flowing airbox and mufflers along with appropriate fueling.

&nbsp\\;
Glens,
Can you publish you Excel file ?
Thanks,
JJ

Jul 24, 2008 | 04:28 PM

#17

glens

Outstanding HDF Member

Joined: Jul 2007

Posts: 2,609

Likes: 1

From: Indy area

RE: RPM vs MPH

My shift points are by feel/sound.

I have uploaded this before but will try today again.

Drop the .txt from the filename and you will have a zip file.