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Buell Motorcycle Forum » Quick Board Archives » Archive 0212 (December 2002) » Technical » S-3 fairing handlebar mount? Aerodynamics? « Previous Next »

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Crazymike
Posted on Monday, March 11, 2002 - 11:13 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I picked up an S-3 fairing at a local bike junkyard. Bout 30 minutes with a cable saw had the broken mirror mounts removed and a nice circle for a round headlight. The lower edges will have to be trimmed back to clear the tank. All throughout Buells literature are warnings against heavy handlebar mounted windshields.I understand why. It looks like most of the S-3 fairings side area will be behind the steering pivot point mounted on an M-2. I don't see stability being a problem here but I'd like to find out if anyone else has tried this and what the results were. thanx.
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Mikej
Posted on Tuesday, March 12, 2002 - 09:21 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

The S3 fairings on the S3 Buells mount to the head tube, not to the handlebars. Anything bigger than the Blast windshield hanging off the handlebars and I'd be worried. Get an S3 fairing mount to match up with your fairing and bolt it to the headtube for a much more stable ride.

MikeJ (Trying to imagine what a handlebar mounted RoadKing fairing would do to an M2.
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Crazymike
Posted on Saturday, May 04, 2002 - 12:36 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Roadking on an M2? Imagine a little terrier trying to wag a wolfhounds tail The M3 project is starting to progress again. Too many weekends workin' overtime.
Anyone got a url for the different windscreens available? I've seen standard, tall, big lip on the edge, zero gravity. Can't tell who sells what or where to get it from.
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Imonabuss
Posted on Saturday, May 04, 2002 - 09:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Crazymike,

DO NOT mount the fairing on the fork. Please mount it on the frame. The effects of mass on the front end are really bad. It's mass more than aerodynamics, and it doesn't matter whether it's further forward or further back. Basically the self-aligning force of the tire patch contact force acting over the trail will no longer be enough to stabilize the bike.

I've tried a couple of experiments like this with disastrous results, then did a bunch of research. Basically a Harley can get away with this because of the huge amount of trail...but even they feel a little wandery with fork mounted fairing.

The basic idea sounds good, though; a frame mounted S3 fairing converted to a round headlight on an M2 sounds like a cool bike.
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Davegess
Posted on Tuesday, May 07, 2002 - 12:54 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Crazymike

Imonabuss is absolutly correct. do as he says.
dave
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Crazymike
Posted on Tuesday, May 07, 2002 - 10:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

I'm listening guys. Still wondering how the Blastards are getting away using that little one size fits all cafe fairing.
I'm gonna try to get a few online pics so you can see whats going on. With a little imagineering, who knows?
Thanks guys
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Blake
Posted on Wednesday, May 08, 2002 - 02:46 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

It's easy enough to mount it on the frame. Why not do so? The S3 fairing is not a "little cafe fairing"; it's a pretty sizeable fairing, especially when fitted with an extended windscreen.
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Crazymike
Posted on Wednesday, May 08, 2002 - 09:52 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

This one was picked up cheap at the junkyard. The cracked mirror mounts and the turn signal locations have been removed. Theres not much left except a 3" ring around the headlight and the flanges that the windscreen bolts onto. It still retains the S3 flavor.
Yes I could have gone with stock bolt on parts but I didn't want the hassle of relocating the instruments, lights,mirrors ect. There also the satisfaction of having something just a leetle bit different.
On the way home from work today I bungee'd a 2 liter coke bottle across the instruments. Figgered if the front end started swinging, the coke bottle would fall off. Well the front didn't twitch a bit and the coke bottle fell off anyway. No problems at 80 mph.
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Imonabuss
Posted on Wednesday, May 08, 2002 - 10:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Sigh...believe me, don't do it. It's like doing a mad dash across in front of a train, then saying..."Hey, it didn't hit me, I'll try again...". You can continue to be lucky, but the day you aren't...
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Blake
Posted on Thursday, May 09, 2002 - 01:18 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only)

Well, he could always add a steering damper and cautiously test it on a safe wide open stretch of road. I mean gee, I've seen lots more radical things done to bikes. The steering damper would be a must though.
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