tire question - Kawasaki KLR 650 Forum
2008+ KLR650 Wrenching & Mod Questions For repair, maintaining or modifying discussions related to the newly updated 2008 and beyond, Generation 2 KLR650 Motorcycle.

 3Likes
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 16 Old 08-12-2016, 07:46 PM Thread Starter
1st Gear
 
Join Date: Jun 2016
Posts: 36
tire question

Im looking at some new tires and the load capacity is at 639lbs. The bike is roughly 420 and Im 260. This doesnt ad up. Or am I missing something? It seems most of the klr tires have this same load rating!
James M is offline  
Sponsored Links
Advertisement
 
post #2 of 16 Old 08-12-2016, 08:08 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,572
Garage
That's the load rating for one tire.

Assuming it is a rear tire, the front tire will have a slightly lower load rating, perhaps 600 pounds. You've got a total capacity of 1240 pounds.

My bike has a weight distribution, unloaded of 55/45. Lets say that, loaded, yours is 65/35.

Rear .65 * (420+260) = 442 pounds.
Front .35 * (420+260) = 238 pounds

The key here is how much you load onto the back, but there's such a large margin (200 pounds) that you're good to go.

Tom

p.s., My K761s are rated at 520 and 507. My bike weighs 425. My gear and I weigh in at about 260. No problem with tires.

Tom [email protected]

“She went out slowly. The way she did it hadn’t been learned at business college.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


Sting like a butterfly.
Tom Schmitz is online now  
post #3 of 16 Old 08-12-2016, 08:13 PM Thread Starter
1st Gear
 
Join Date: Jun 2016
Posts: 36
Thank you for response and help!
James M is offline  
 
post #4 of 16 Old 08-12-2016, 09:24 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,572
Garage
You're welcome, but do bear in mind that it is good to keep the weight distribution as even as possible between the front and the rear.

If the front gets too light it can lead to instability and shimmy in the front end. Tank bags are a good way to get some weight to the front that you might normally carry in the rear.

I chose 65% of the weight in the rear in the above example to make a point that your tire has plenty of capacity, but I don't recommend putting that much weight to the back.

I will repeat some good advice from Paul Westman - put two pounds more pressure in the front tire than in the rear. I run 36 front/34 rear most of the time. According to Paul, the skinny front tire likes it better that way and my experience, following his advice, says he is right.

Tom
pdwestman likes this.

Tom [email protected]

“She went out slowly. The way she did it hadn’t been learned at business college.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


Sting like a butterfly.
Tom Schmitz is online now  
post #5 of 16 Old 08-13-2016, 01:02 AM Thread Starter
1st Gear
 
Join Date: Jun 2016
Posts: 36
Will that tire pressure help reduce higher speed wobble? Another question about tires. Does an 18" on the front help reduce any wobble or instability? Or is that a waste of money?
James M is offline  
post #6 of 16 Old 08-13-2016, 02:35 AM
Moderator
 
CheapBassTurd's Avatar
 
Join Date: May 2009
Location: Indiana/ Michigan line at the Lake
Posts: 1,585
The 21" is less prone to a wobble.
Harder pressure removes some of the flex
that can induce a wobble.

My Nighthawk S with it's 15" front tire wobbled like a bad shopping cart wheel
no matter the tire or pressure.

This is my son, with whom I am well pleased." ----God
CheapBassTurd is offline  
post #7 of 16 Old 08-13-2016, 05:16 AM
5th Gear
 
Join Date: Jan 2011
Posts: 4,333
Quote:
Does an 18" on the front help reduce any wobble or instability?
My KTM690 went from 21" front wheel to 19", a conversion by the PO (from 18" rear wheel to 17" also, BTW). PO said high-speed wobble reduced considerably with the smaller-diameter rims; YMMV ("your mileage may vary"). Intuitively, a larger-diameter rim would seem more stable, but many other variable factors enter the equation.

I find the bike stable at high speeds; some wind-waggle, as most lightweight bikes are susceptible to wind wander. Livable, but considering a steering damper.
Damocles is offline  
post #8 of 16 Old 08-13-2016, 03:45 PM Thread Starter
1st Gear
 
Join Date: Jun 2016
Posts: 36
I adjusted my tires to 36 f 34 rear and seems to be much better. I started looking at new tires cause I thought the wobble I had experienced was a OEM tire issue. Checked my pressure yesterday and it was about 22lbs in each tire. LOL!!! But when I aired them up it wasnt the suggested tire pressure until I added more this morning. Between the correct tire pressure,klx kit,air box mod and new exhaust all this week this bike is a different beast.
James M is offline  
post #9 of 16 Old 08-13-2016, 04:11 PM
Pretty in Pink, dunno why
 
Tom Schmitz's Avatar
 
Join Date: Feb 2009
Location: Redondo Beach
Posts: 7,572
Garage
Glad to hear you're getting it sorted.

What tires are currently on the bike?

Tom

Tom [email protected]

“She went out slowly. The way she did it hadn’t been learned at business college.” -Philip Marlowe

“'Why' and 'How' are words so important they cannot be too often used.” -Napoleon Bonaparte


Sting like a butterfly.
Tom Schmitz is online now  
post #10 of 16 Old 08-13-2016, 04:32 PM Thread Starter
1st Gear
 
Join Date: Jun 2016
Posts: 36
The factory tires. I believe they are dunlop k750.
James M is offline  
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Kawasaki KLR 650 Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Another tire question EXBMW 2008+ KLR650 Wrenching & Mod Questions 0 07-23-2016 07:40 PM
Tire Question? larry31 KLR & Other Motorcycle Related Discussion 10 08-29-2014 02:30 PM
Tire Question planalp 2008+ KLR650 Wrenching & Mod Questions 10 07-02-2014 09:20 PM
Tire Question??? sammy 2008+ KLR650 Wrenching & Mod Questions 4 05-03-2009 09:49 PM
Tire Question TpaKlr Bike and Rider Gear 6 11-04-2007 02:50 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome