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Old 09-14-2008, 02:01 AM   #1
obsidian OP
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2008 F650gs

Just curious if anyone has opinions or thoughts about the 650GS for fire roads and gravel roads? Will the rims be ok for that sort of riding?
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Old 09-15-2008, 05:26 AM   #2
JRWooden
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Quote:
Originally Posted by obsidian
Just curious if anyone has opinions or thoughts about the 650GS for fire roads and gravel roads? Will the rims be ok for that sort of riding?
As far as I know we have no first-hand reports (good or bad) on the 658 cast rims.

While they are cast rims, they look more beefy than many I have seen. Also, apparently the 800 spoked rims aren't really as beefy as you might suspect...

See the pictures at the bottom of this page:

http://www.ukgser.com/forums/showthread.php?t=154536

So ... you might buy an 800 and STILL decide the rims are not "fit for purpose" ?

Jim
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Old 09-15-2008, 10:18 AM   #3
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Been riding mine on fire roads. No problems with the rims. Tire are a different story. The stock ones are fine for normal travel but if you plan on more aggressive riding especially on loose dirt/gravel knobbies like the TKC would be better.
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Old 09-15-2008, 02:09 PM   #4
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Chatting about this on another thread. Blackie, what do you think about throwing some X Country rims and knobbies on the 650 for a little more serious dirt riding? Not motocross, but not groomed dirt roads either.

-Rob
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Old 09-24-2008, 09:45 AM   #5
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Quote:
Originally Posted by Twin650GS
Chatting about this on another thread. Blackie, what do you think about throwing some X Country rims and knobbies on the 650 for a little more serious dirt riding? Not motocross, but not groomed dirt roads either.

-Rob
Sorry didn't see this earlier..
The xcountry rims might work if it fits....
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Old 09-28-2008, 01:19 PM   #6
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From the BMW website.
F650GS
Front Wheel2.50 x 19 cast aluminum
Rear Wheel3.50 x 17 cast aluminum
Front Tire110/80 x 19 tubeless
Rear Tire140/80 x 17 tubeless


XCountry
Front Wheel2.50 x 19 wire-spoke
Rear Wheel3.00 x 17 wire-spoke
Front Tire100/90 x 19 tube-type
Rear Tire130/80 x 17 tube-type


Hope this helps.

-Rob
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Old 09-28-2008, 04:14 PM   #7
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Yeah the numbers look about right, just wondering about the other stuff like brake rotor, sprocket mounts etc if those will fit too.
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Old 09-28-2008, 05:34 PM   #8
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That and axle spacing, too.
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Old 09-29-2008, 05:52 AM   #9
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I am seriously considering the 650 due to the fact that I "fit" better on it. I broke right leg and it is easier to throw my leg over the 650 due to the fact that is a bit lower. My only concern is that I want to go to South American on it and wonder about the cast wheels. I really don't think that I am going to "bash" it over big rocks/trees/and truck parts if I can help it.
I appreciate any "insights" you might offer about the cast wheels. I realize that if one hits anything big enough it will take out either type of wheel.

Again...thanks for you comments.

Mr. Pete--->
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Old 09-29-2008, 06:59 AM   #10
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Quote:
Originally Posted by mrpete64
I am seriously considering the 650 due to the fact that I "fit" better on it. I broke right leg and it is easier to throw my leg over the 650 due to the fact that is a bit lower. My only concern is that I want to go to South American on it and wonder about the cast wheels. I really don't think that I am going to "bash" it over big rocks/trees/and truck parts if I can help it.
I appreciate any "insights" you might offer about the cast wheels. I realize that if one hits anything big enough it will take out either type of wheel.

Again...thanks for you comments.

Mr. Pete--->
Cast rims -> Tubeless tyres -> easier to repair punctures on the side of the road
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Old 09-29-2008, 07:14 AM   #11
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Quote:
Originally Posted by blackie
Cast rims -> Tubeless tyres -> easier to repair punctures on the side of the road
what he said!--that was 1 of the reasons i went with the 650 over the 800 have been bombing around on dirt roads since i got mine and think its great! don't even mind the tires-mind you i'm not trying to maintain dakar speeds- but running 40-60 mph its cool have 1100 miles on and about 1/2 is dirt
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Old 09-30-2008, 02:08 PM   #12
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I asked Woody about spoked wheels in the Vendor Forum, and got this.

Post 946

http://www.advrider.com/forums/showt...145899&page=64

-Rob
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"I rode a lot of dirt bikes when I was younger, so I trust the chain and sprockets more than that newfangled voodoo shaft stuff!" DolphinJohn
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Old 09-30-2008, 03:26 PM   #13
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I think that as long as you maintain good pressure in the tires (over 30 psi) the rims will be ok for almost anything you would attempt on the 650. I went uphill on two long runs of concrete steps last week and the rims survived. Maybe not much of a test as hitting a pothole at over 60 but just don't think that there's much to worry about if you keep the psi up.
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Old 09-30-2008, 04:04 PM   #14
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Don't you usually air down for off-road?

When are you planning on modding your 650 for a trials bike? I don't have any stair climbing skillz!

-Rob
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I can imagine a no more rewarding career. And any man who may be asked in this century what he did to make his life worthwhile, I think can respond with a good deal of pride and satisfaction: "I served in the United States Navy." JFK

"I rode a lot of dirt bikes when I was younger, so I trust the chain and sprockets more than that newfangled voodoo shaft stuff!" DolphinJohn

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