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Old 03-21-2011, 12:34 PM   #136
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It appears I was wrong ... The shock length is 16.5". So ... it looks like I need one about 17" to 17.5".
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'85 R80RT G/Sified <|> '91 R100GS Bumblebee (101K miles and climbing) <|> '73 R75/5 LWB
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Old 03-21-2011, 12:46 PM   #137
igormortis
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I seem to remember the road monos being around 420mm compared with the G/S at around 360mm?

Also, the mounting eyes are different on both bikes.
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Old 03-21-2011, 12:57 PM   #138
igormortis
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Might be useful or at least inspirational...

From the "airhead dirtbikes" thread:

Quote:
Originally Posted by ezbalagan View Post
http://www.youtube.com/watch?v=DoBkqS4d72g
its a rat bike bet i love it...
Quote:
Originally Posted by igormortis View Post
Title says it's a GS, but is that a cast monolever rear wheel (Y-spoke four bolt)?
Quote:
Originally Posted by ezbalagan View Post
well.. its not areal gs.. it was a r80 and i gave it a ktm wp front and a dr350 kyaba rear shok. u can see its woking ... :)
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Old 03-21-2011, 01:25 PM   #139
bgoodsoil
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I'm sanding the bug today. I'll be sanding the bug tomorrow too but the day after that!...yeah, I'll still be sanding. Come over any time.
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Old 03-29-2011, 05:07 PM   #140
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Went to the trails with Jenna today. We hit a lot of forest roads on the southeast side. It was overcast and the woods were spooky. Jenna almost got mauled by a deer, we had some rockin' barbecue, and none of the wrecks involved injuries It was a heckuva good day. The roads are bumpy enough that you need to stand up but we cruised along at an easy 35mph. It oughta be a good place for you to get used to offroading. As soon as you get the Dobber (dun dun dun!) ready let us know. We'll head down there first before tracking down some ATV trails to put the Dobber to the test.
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Old 04-07-2011, 07:01 PM   #141
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Alright ... we need an update.

I bought a front fender for a DRZ400 ... and slapped it on. I also bought a 'Race Tech' rebuilt WP rear shock from a 1990 Husky 400cc bike. It was 17.5 inches ... so a bit longer, but adjustable. I got a screaming deal on it ... so I really don't have much invested in it ... so destroying it is not out of the question.

We now have a new problem however ... the shock's eye's are ~7mm where the eye's for the BMW are made to be 15mm. The way I see it I have three choices:

1. Drill out the shock's eyes. This would be a good one ... but I don't think the eye has 15mm of meat to drill. I could go ahead and do it, and then fit the 15mm barrel and wrap it in rubber and ghetto-tech the mounts. This is a very viable alternative.

2. Drill out the shock to a standard size. Then turn the BMW mount bolt to that specific size. Don't like this because I am destroying the already nice and beefy mount to the shock ... and now we have two operations in order for this to work ... and inevitably this will prevent a future upgrade.

3. Turn the BMW mount bolt to match the shock eye diameter. Don't like this because I'm drilling the already nice and beefy mount to the shock ... and really the same problems as above ...

So I'm really leaning towards option 1. I'll wind up destroying the shock mount (on the shock) ... but it's the least of all the evils.

Thoughts?

PS - The mock-up:


And the New Ascerbis front fender:


PS - I've been riding The Dobber around the neighborhood ... She's running great ...
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Old 04-07-2011, 08:12 PM   #142
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This is wrong....in so many ways.
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Originally Posted by Beater View Post

PS - The mock-up:

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Old 04-07-2011, 08:12 PM   #143
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I wouldnt ream the shock or the bike bolt or nothing... the bolt the shock takes will hold the shock, so I would just make a spacer to fit the mount. A Bushing, sir.
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Old 04-07-2011, 08:13 PM   #144
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Quote:
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I wouldnt ream the shock or the bike bolt or nothing... the bolt the shock takes will hold the shock, so I would just make a spacer to fit the mount. A Bushing, sir.
I fuckin' told you, Fred.....wait. Did I?
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Old 04-07-2011, 08:14 PM   #145
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Isn't his problem the opposite?
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Old 04-07-2011, 08:18 PM   #146
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Quote:
Originally Posted by crazydrummerdude View Post
Isn't his problem the opposite?
Yeah, kind of. The mount holes on the frame are 15mm, and the shock eye is only 7mm. So he'd need a skinny bolt with bushings in the shock mounts.
Hey Fred, my friend Odette saw you at HD and said "nice beemer". You smiled. She was in an Element.
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Old 04-07-2011, 08:20 PM   #147
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Quote:
Originally Posted by crazydrummerdude View Post
Isn't his problem the opposite?
Yes it is.

It *could* work if the 'new bushing' (Thanks Stage) fits inside the the shock's mount .... but I still think I'll be drillin'. But the other problem is finding a 15mm ID pipe with which to make a bushing, or ... heaven forbid .. buy one from BMW.

Either way ... I have a total of $36 in the shock ... If I have to drill it ... so be it.

And ... so wrong ... but so right
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'85 R80RT G/Sified <|> '91 R100GS Bumblebee (101K miles and climbing) <|> '73 R75/5 LWB
Airhead Zen: Ride - Repair - Ride - Maintain - Ride - Repeat
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Old 04-07-2011, 08:21 PM   #148
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That's what I thought.

Edit: Okay, I guess. I can't wait 'til ADVrider.com has a visualization app. Carry on.
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Old 04-07-2011, 08:22 PM   #149
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Quote:
Originally Posted by hardwaregrrl View Post
Yeah, kind of. The mount holes on the frame are 15mm, and the shock eye is only 7mm. So he'd need a skinny bolt with bushings in the shock mounts.
Hey Fred, my friend Odette saw you at HD and said "nice beemer". You smiled. She was in an Element.

Funny! I remember her ... she was on the phone ... for a second I thought she was just talkin' away ... but she made eye contact and said it again. Sweet! Tell her thanks for me!
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'85 R80RT G/Sified <|> '91 R100GS Bumblebee (101K miles and climbing) <|> '73 R75/5 LWB
Airhead Zen: Ride - Repair - Ride - Maintain - Ride - Repeat
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Old 04-07-2011, 08:26 PM   #150
baldwithglasses
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Dear Fred-

Fred, you're my boy. I love and respect you a great deal. And I know I ride an ugly bike.

But Fred? That's the ugliest goddamned bike I've ever seen. You'd better make that sucker work like no one's business to make up for the cacophonous riot of moto-vomit that I see in that photo. That thing looks like it's made out of WRONG.

That being said... I'd ride the piss out of it.

Oh, and I'd spend a few bucks to have the old shock mount cut off and a new WP-friendly mount welded on (mit gussets, of course).

Your loudmouthed, short-tempered, socially retarded friend,

bwg
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