Rear shock dimensions - Kawasaki KLR 650 Forum
1987 to 2007 Wrenching & Mods For maintaining, repair or modifications of Generation 1 KLR's. 2007 and earlier.

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post #1 of 8 Old 03-20-2019, 11:26 AM Thread Starter
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Rear shock dimensions

I would like to put on a later model rear shock on my klr600. Can someone give me the dimensions of a 650 rear shock? Length, and end dimensions?
Thanks, Tim
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post #2 of 8 Old 03-20-2019, 11:28 AM Thread Starter
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I want to buy one on ebay, but the cheapest I found was about 150. I dont want to waste my money if the shock is to short or something else.
Thanks, Tim
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post #3 of 8 Old 03-20-2019, 11:43 AM
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Tim, I'll dig one out later today, if you can wait.

I'm in the midst of making kumquat marmalade, a process which cannot be interrupted.

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post #4 of 8 Old 03-20-2019, 01:40 PM
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This is a Gen 2 shock. You can put a Gen 2 shock on a Gen 1, but need a longer bottom bolt.

The shock dimensions:

Hole center to hole center is 40.5cm
Ear is 22mm wide with a 12.1mm dia hole
Clevis has an inside width of 30.15mm with a 15.1mm dia hole.
Outside diameter of the shock, overall, is 76mm

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“The kid poured him another straight rye and I think he doctored it with water down behind the bar because when he came up with it he looked as guilty as if he'd kicked his grandmother.” -Philip Marlowe

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

Sting like a butterfly.
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post #5 of 8 Old 03-20-2019, 04:00 PM Thread Starter
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Thank you Tom.
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post #6 of 8 Old 09-01-2019, 07:00 PM
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Does anybody know what the length of the rear spring of a Gen 1 is? Id like to replace it with a Top Gun spring, but not If its going to be shorter and make the rear end sag. Im away for work right now so I can't measure mine.

Please do not lecture me on the effects of temperature and density altitude on an internal combustion engine -Thank you.

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post #7 of 8 Old 09-01-2019, 07:27 PM
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The free length of the spring does not matter. It is compressed a fair bit when installed on the shock; all springs will have the same installed length. What does matter is the spring rate.

Of course, it also matters what the stack height of the spring is, but that would only be of a concern if you were selecting a spring that hadn't already been designed for the application.

You want a spring that has a rate that will handle the load you intend to put on it. Most spring vendors will have a table to generally correlate your weight to the spring rate. For example, if you have a Gen 1 and intend to carry load the bike up with you, your gear, and your stuff and it will be 230-20 pounds then you want the 7.4 Kg spring.
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“The kid poured him another straight rye and I think he doctored it with water down behind the bar because when he came up with it he looked as guilty as if he'd kicked his grandmother.” -Philip Marlowe

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

Sting like a butterfly.
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post #8 of 8 Old 09-01-2019, 10:14 PM
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Ok, thanks again Tom.

Please do not lecture me on the effects of temperature and density altitude on an internal combustion engine -Thank you.

2003 KLR650.... With all the bells and whistles
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