Touring Models Road King, Road King Custom, Road King Classic, Road Glide, Street Glide, Electra Glide, Electra Glide Classic, and Electra Glide Ultra Classic bikes.
Sponsored by:
Sponsored by:

Checking belt tension

Thread Tools
 
Search this Thread
 
Old Jul 28, 2013 | 11:41 PM
  #1  
ridedaddy's Avatar
ridedaddy
Thread Starter
|
Road Master
Joined: Mar 2013
Posts: 1,220
Likes: 14
From: chatham il
Default Checking belt tension

Any good methods of checking the drive belt tension without buyin a 36 dollar tension gauge? Mine seems tighter than I would think it needs to be.
 
Reply
Old Jul 29, 2013 | 03:31 AM
  #2  
my67pnycar's Avatar
my67pnycar
Elite HDF Member
Joined: Oct 2010
Posts: 3,504
Likes: 12
From: DOWN SOUTH
Default

I have seen threads where people twist the belt 45 degrees each way to check tighness. I myself will invest in the correct tool for the job. My bike is worth way to much to be guessing on stuff like that and I dont wanna be "that guy" whose belt breaks because it is to loose or tight in the middle of bum f_ck Egypt, lol..
 
Reply
Old Jul 29, 2013 | 05:29 AM
  #3  
jus2anoyu's Avatar
jus2anoyu
Outstanding HDF Member
Joined: Aug 2008
Posts: 2,090
Likes: 7
Default

Originally Posted by my67pnycar6
I have seen threads where people twist the belt 45 degrees each way to check tighness. I myself will invest in the correct tool for the job. My bike is worth way to much to be guessing on stuff like that and I dont wanna be "that guy" whose belt breaks because it is to loose or tight in the middle of bum f_ck Egypt, lol..
That's my luck too. I bought the tool, and once you set it with the tool, you can get a feel for how tight it should be. No way to explain it other than to do it right...
 
Reply
Old Jul 29, 2013 | 05:42 AM
  #4  
fatboy slim's Avatar
fatboy slim
Road Master
Joined: Jul 2012
Posts: 863
Likes: 2
From: spain and uk
Default

Well what I did was to get my kitchen scales out press on the scale pan until I deflected it to 4.5kg, just to see how much effort it took, then remembering that amount of effort, and how tense my hand was i checked the belt tension and measured the deflection with a ruler. Sounds insane, but like the above post says once you get a feel for it you don't need the gauge. I bet 9 out of 10 dealers don't even have one, let alone use it.

The reason I checked mine was because I was getting a nasty vibration through the footboards at one point on decel. I'd just had new tires fitted they had over tensioned the belt when re fitting the back wheel.
 
Reply
Old Jul 29, 2013 | 05:45 AM
  #5  
RK Joy's Avatar
RK Joy
Outstanding HDF Member
Joined: Mar 2012
Posts: 2,242
Likes: 3
From: Upstate NY
Default

I bit the bullet and bought the gage ten years ago. I figured it was worth knowing the tension was correct.
 
Reply
Old Jul 29, 2013 | 06:17 AM
  #6  
dawg's Avatar
dawg
Seasoned HDF Member
Shutterbug
Liked
Loved
Community Favorite
Joined: Jun 2006
Posts: 28,476
Likes: 3,950
From: Vermont
Default

I'm one of the 45 degree 1/2" twist guys, haven't had any problems.
 
Reply
Old Jul 29, 2013 | 06:17 AM
  #7  
'05Train's Avatar
'05Train
Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
Default

Originally Posted by ridedaddy
Any good methods of checking the drive belt tension without buyin a 36 dollar tension gauge? Mine seems tighter than I would think it needs to be.
Buy one for $26. Buy one for $26.
You spent how much on your bike, and you're sweating $26 for a tool that'll help you extend the life of your very-expensive-to-replace belt? Buy the gauge and do it right.
 
Reply
Old Jul 29, 2013 | 07:24 AM
  #8  
jamesroadking's Avatar
jamesroadking
Road Warrior
Joined: Dec 2009
Posts: 1,328
Likes: 154
From: Lake City, Florida
Default

When my 2010 Limited was brand new, I discovered that the belt would have the proper tension when the bike was cold, but after a couple of hours of riding in ninety degree temperatures the belt would be banjo string tight. With all I read about the primary and transmission bearing failures, I readjusted for proper belt tension when she's hot. When she's cold now the belt is a little loose, I just ride her easy till she warms up, the belt tension seems right. Knock on wood, so far no striped belt teeth, also no bearing failures. With my Evo powered Heritage, and my TC88 Roadking's wider belts I never had this BS over the belt tension.
So has anyone else experienced these new skinny belts tightening up when it's hot?
 

Last edited by jamesroadking; Jul 29, 2013 at 07:27 AM.
Reply
HD Forum Stories

The Best of Harley-Davidson for Lifelong Riders

story-0

7 Surprising Harley-Davidson Products that Are Not Motorcycles

 Verdad Gallardo
story-1

8 Best Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-2

10 Worst Harley-Davidson Motorcycles Ever

 Pouria Savadkouei
story-3

Killer Custom's Jail Break Is The Breakout That Refused to Blend In

 Verdad Gallardo
story-4

Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

 Verdad Gallardo
story-5

Harley-Davidson Reveals Super Cool Cafe Racer Concept

 Verdad Gallardo
story-6

Engraved Rebellion: Inside Bundnerbike's Glam Rock II

 Verdad Gallardo
story-7

10 Motorcycles You Should Never Buy

 Joe Kucinski
story-8

10 Things Harley-Davidson Needs to Fix in 2026

 Verdad Gallardo
story-9

Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

 Verdad Gallardo
Old Jul 29, 2013 | 07:32 AM
  #9  
'05Train's Avatar
'05Train
Ultimate HDF Member
Joined: May 2008
Posts: 7,439
Likes: 884
From: 'Noke, VA
Default

Originally Posted by jamesroadking
When my 2010 Limited was brand new, I discovered that the belt would have the proper tension when the bike was cold, but after a couple of hours of riding in ninety degree temperatures the belt would be banjo string tight. With all I read about the primary and transmission bearing failures, I readjusted for proper belt tension when she's hot. When she's cold now the belt is a little loose, I just ride her easy till she warms up, the belt tension seems right. Knock on wood, so far no striped belt teeth, also no bearing failures. With my Evo powered Heritage, and my TC88 Roadking's wider belts I never had this BS over the belt tension.
So has anyone else experienced these new skinny belts tightening up when it's hot?
They're designed to do that. The tension spec is cold, not hot. Set it where it's supposed to be and don't worry about it.
 
Reply
Old Jul 29, 2013 | 09:39 AM
  #10  
NPW's Avatar
NPW
Banned
Joined: Nov 2011
Posts: 134
Likes: 2
From: Gainesville, Fl
Default

Just set my belt tension on a 2012 FLHX using the gauge. Manual says to do it cold, and check at several different spots and select the loosest spot. Glad I checked several spots because there is a fair amount of difference between the tightest and loosest spot around the whole belt. And I gotta say, the "45* of twist" thing can't be correct. I'm pretty weak but when that belt is set as per above I don't see any way that you are gonna twist it 45* unless you are pretty fu@%in' strong.
 
Reply



All times are GMT -5. The time now is 10:43 AM.

story-0
7 Surprising Harley-Davidson Products that Are Not Motorcycles

Slideshow: The bar-and-shield logo shows up on far more than motorcycles, some of the company's most unexpected products have nothing to do with riding.

By Verdad Gallardo | 2026-04-29 16:50:35


VIEW MORE
story-1
8 Best Harley-Davidson Motorcycles Ever

Slideshow: Not every Harley gets it right, but these are the ones that genuinely earned their reputation.

By Pouria Savadkouei | 2026-04-15 14:23:21


VIEW MORE
story-2
10 Worst Harley-Davidson Motorcycles Ever

Slideshow: From the troubled AMF years to modern misfires, these bikes earned reputations for reliability issues, questionable engineering, or disappointing performance.

By Pouria Savadkouei | 2026-04-01 20:01:09


VIEW MORE
story-3
Killer Custom's Jail Break Is The Breakout That Refused to Blend In

Slideshow: Killer Custom's "Jail Breaker" build focuses more on stance and visual aggression than mechanical overhaul.

By Verdad Gallardo | 2026-03-18 19:20:32


VIEW MORE
story-4
Crazy Bunderbike Build Looks Amazing, But Is It Impossible to Ride?

Slideshow: The Swiss custom shop has taken a Harley Softail and stretched it into something so long and low that it looks closer to a rolling sculpture than a conventional motorcycle.

By Verdad Gallardo | 2026-03-07 16:15:30


VIEW MORE
story-5
Harley-Davidson Reveals Super Cool Cafe Racer Concept

Slideshow: Harley-Davidson's new RMCR concept revives the café racer formula with modern hardware-and it may be exactly the reset the company needs.

By Verdad Gallardo | 2026-03-04 12:23:37


VIEW MORE
story-6
Engraved Rebellion: Inside Bundnerbike's Glam Rock II

Slideshow: A standard cruiser becomes an intricate metal canvas in the hands of a Swiss custom house known for pushing Harley-Davidson platforms far beyond their factory brief.

By Verdad Gallardo | 2026-02-24 18:19:44


VIEW MORE
story-7
10 Motorcycles You Should Never Buy

Slideshow: There is no shortage of great motorcycles to buy, but we would avoid these ten.

By Joe Kucinski | 2026-02-19 14:50:51


VIEW MORE
story-8
10 Things Harley-Davidson Needs to Fix in 2026

Slideshow: Harley-Davidson's challenges aren't abstract; they show up in dropping shipments, shrinking dealer traffic, and strategic decisions that aren't yet translating into growth.

By Verdad Gallardo | 2026-01-13 18:33:17


VIEW MORE
story-9
Southpaw Super Glide: A Left-Hand-Drive 1979 Harley FXE Built to Fit the Rider

Slideshow: Graeme Billington's left-hand-drive Shovelhead is as much about problem-solving as it is about classic Harley form.

By Verdad Gallardo | 2025-12-30 11:27:08


VIEW MORE