Question about RPMs
Tourer
Joined: Dec 2008
Posts: 446
Likes: 0
From: Wilmington, NC
I've always wondered what "long distance/steady RPM" is by definition. I want to get to the 1000 mile service as quickly as possible (within 2 weeks) because I've got a longgggg drive from MI to NC.
Is there a general rule of thumb for highway miles during break in?
Is there a general rule of thumb for highway miles during break in?
Advanced
Joined: Dec 2008
Posts: 80
Likes: 0
So in a nut shell, what would be the best way to help with the 2.79 ratio? Change the rear sprocket to a 70 tooth or the front to a 30 tooth? Maybe both that would give you a 3.15 (06 Dyna) and you could use your stock belt right?
Thread Starter
|
Road Warrior
Joined: Dec 2008
Posts: 1,530
Likes: 1
From: Upstate, SC
That may be about right, I guess, if 70 is 2500 rpm in 6th. But based on your numbers, that would make 60 around 2500 rpm in 5th. Is that what you saw?
Road Captain
Joined: Mar 2008
Posts: 646
Likes: 0
From:
I've always wondered what "long distance/steady RPM" is by definition. They don't want you to break them in on the highway. They want acceleration adn decelleration, like riding around town. My brother always said break them in like you are going to ride them. I think breakin is overrated. The rings probably break in in the first 100 miles and the bearing probably 300 miles.
Road Master
Joined: Oct 2008
Posts: 972
Likes: 23
From: NC
I took it easy on my '09 Street Bob. Made sure I didn't take it up over 95 mph for the first 1000 miles. 
HD Forum Stories
The Best of Harley-Davidson for Lifelong Riders
7 Surprising Harley-Davidson Products that Are Not Motorcycles
Verdad Gallardo
8 Best Harley-Davidson Motorcycles Ever
Pouria Savadkouei
10 Worst Harley-Davidson Motorcycles Ever
Pouria Savadkouei
Killer Custom's Jail Break Is The Breakout That Refused to Blend In
Verdad Gallardo
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?
Verdad Gallardo
Harley-Davidson Reveals Super Cool Cafe Racer Concept
Verdad Gallardo
Engraved Rebellion: Inside Bundnerbike's Glam Rock II
Verdad Gallardo
10 Motorcycles You Should Never Buy
Joe Kucinski
10 Things Harley-Davidson Needs to Fix in 2026
Verdad Gallardo
Elite HDF Member
Joined: May 2008
Posts: 4,579
Likes: 10
From: S.E. MO
It runs about 2500 at 70 in 6th gear.
Here is a pic of 70 in 5th. Looks like closer to 2900
Thread Starter
|
Road Warrior
Joined: Dec 2008
Posts: 1,530
Likes: 1
From: Upstate, SC
Now that's what I call "hard evidence."I'd say that 60 in 5th is definitely around 2500 rpm based on what you're seeing at 70. Do you remember if that's what it was?