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Terpfords
Posted on Thursday, July 05, 2018 - 07:41 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

i would like to extend my swing arm on my 2001 M2. The stock swing arm is cast so I’ve been reading about the possibility of using a S1/S3t or 97-98 M2 to extend. Are any of them aluminum square tubing ?
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89rs1200
Posted on Thursday, July 05, 2018 - 08:12 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

The 1998 and earlier are steel square tubing. The mounting block is also different.
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Jolly
Posted on Thursday, July 05, 2018 - 08:35 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Are you trying to set your bike up for drag racing on the track?
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Kmbuell
Posted on Thursday, July 05, 2018 - 09:04 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have several steel swing arms and mounting blocks if you are interested.
PM me, or kmeath34@gmail.com
Kevin
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S1owner
Posted on Thursday, July 05, 2018 - 09:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Mounting blocks are not always different! 96 block with a X1 swingarm. Fit just fine.





Bigger concern would be why? You are going to have shock issues snd belt issues
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89rs1200
Posted on Friday, July 06, 2018 - 11:04 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I was answering his direct question concerning a 2001 M2.
Good to know your 1996 X1 will mount a cast swingarm.
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Upthemaiden
Posted on Friday, July 06, 2018 - 11:31 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

"Are any of them aluminum square tubing ?"

None of them have aluminum square tubing. I have seen an extended aluminum swingarm or two, but just the regular case version with an extension welded in. The steel swingarm would definitely be the way to go. You could avoid the belt issues by switching to a chain drive, but you'll still have to figure something out for the suspension since the longer swingarm will have more leverage and will make the shock feel soft. I feel like you'd have to pay for one of the nicer shocks and get them built with a heavier spring.



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No_sprk
Posted on Friday, July 06, 2018 - 11:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

if you want to drag race it i have seen a few drag bikes for sale in WI/MI area craigslist
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S1owner
Posted on Friday, July 06, 2018 - 11:43 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

And I have had almost all of the blocks in my shop only issue I ever had was the travel stop needed filed to get full travel. 5 min job
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89rs1200
Posted on Friday, July 06, 2018 - 12:02 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

This is a VERY important piece of information which must be stated; "travel stop needed filed to get full travel".
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Upthemaiden
Posted on Friday, July 06, 2018 - 12:24 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Children children...





The two different mounting blocks are very similar, there's just one spot that needs filed slightly to go from steel to aluminum. I posted this picture a while back showing the difference. In his case, he's starting with the aluminum swingarm so his mounting block will already have the cut-out to work with either style swingarm, so nothing will need filed.



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No_sprk
Posted on Friday, July 06, 2018 - 12:26 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

good info! i want to convert to a late swingarm and rather not have to buy more stuff
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Upthemaiden
Posted on Friday, July 06, 2018 - 12:37 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I just did mine this winter. Some people say it feels stiffer. I didn't notice any difference in how my bike feels(although it was 7 months between riding on the two different ones). It sure did make a difference in the appearance though. I thought that steel swingarm stuck out like a sore thumb.
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S1owner
Posted on Friday, July 06, 2018 - 12:38 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Its all good.
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No_sprk
Posted on Friday, July 06, 2018 - 12:43 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

How much do you weigh? They say it's Alot stiffer. I'm assuming with a heavy person the swingarm can flex because of the offset shock mount.
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89rs1200
Posted on Friday, July 06, 2018 - 12:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thank you Upthemaiden for the info. and photos. I knew there was an issue moving from the steel to the aluminum. Good to know the reverse is not a problem.

(Message edited by 89rs1200 on July 06, 2018)
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S1owner
Posted on Friday, July 06, 2018 - 01:01 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Stell has a natural flex to it. Aluminum is stiffer.
As an example
My sons race bikes they run aluminum or carbon fiber tubing frames because they get more power to the ground with minimal flex compared to the thin wall chromoly it is the same weight but flexes under load. Now the downfall is aluminum bike frames fatigue over time and abuse as where the flex of the chromoly protects the steel frame.
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Upthemaiden
Posted on Friday, July 06, 2018 - 02:56 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

No_sprk, I'm about 165lbs. I've never been one to notice random things though. People can go on and on about which tires they like and what air pressure they need and their suspension being 2 clicks off in one direction... I just get on and ride the thing. I'm sure if I had two of the same bike with different swingarms and rode them back and forth a few times I might be able to pick out the difference, but as a commuter who rides on normal roads at normal speeds, I can admit that my upgrade was 100% cosmetic.

I did weigh them when I had them off the bike and the swingarms were almost identical in weight.
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No_sprk
Posted on Friday, July 06, 2018 - 03:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Add a hundred pounds and that's where Im at. I thought Buell themselves said it was over twice as stiff?
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Terpfords
Posted on Friday, July 06, 2018 - 07:16 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

So this a direct replacement ? Are the axles the same ?
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S1owner
Posted on Friday, July 06, 2018 - 09:22 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

You will need the axle, spacer, tensioners and swingarm
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Terpfords
Posted on Saturday, July 07, 2018 - 09:38 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I weight 180 and I would like to occasionally ride with my wife. I have a Penske with a 450# & 600# spring.
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Lynrd
Posted on Saturday, July 07, 2018 - 11:41 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Well, if you lengthen the swingarm you just changed the shock geometry math significantly. I’ve only seen extended swingarms run on Buells with a solid strut replacing the shock (Dragsters).

I have one hanging on the shop wall (steel, extended 4”) . I might list it in classifieds if someone wants it as the project it was intended for went in a different direction.
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Hybridmomentspass
Posted on Saturday, July 07, 2018 - 05:06 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

lynrd - PM me with a price, I MIGHT be interested in that
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Madmacks
Posted on Sunday, July 08, 2018 - 01:03 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Drag racing is fun!!! You can build whatever works. This works pretty good, I'm still working on the set-up.

I'll post some better pictures when it's off the trailer.

12 inch extension, adjustable ride height, Showa shock from a Ducati Monster, racetech gold valve and 10.7kg spring.













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Terpfords
Posted on Sunday, July 08, 2018 - 10:53 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Let me know what you think of a 12” extension. I am looking at a 6” extension.
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Madmacks
Posted on Monday, July 09, 2018 - 09:06 am:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

12 inch is probably too much for the street. I use this bike only on the track. It is also lowered quite a bit so it drags the pipe turning left at the end of the track. I have no input on a six inch extension as I have not run one. This bike will still wheelie off the line if the tire hooks and I give it too much clutch too quickly. A six inch will definitely give you more launch control but I have no idea how the street handling will be affected. You will very likely need to upgrade the spring as I don't think you can add enough pre-load to compensate for the extra leverage. I'm certainly no expert on this. I did get help and advice from the suspension shop that did the shock/spring for me. RaceTech can help you out I'm sure.

Have Fun!!
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Gusm2
Posted on Monday, July 09, 2018 - 02:14 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

https://drive.google.com/file/d/1_5HE8_JhpaFLj-hUv CrmYvUU8V_LC27g/view?usp=drivesdk

I use a strut on mine as it's never on the road anymore, a lot cheaper and simpler option, arm is 6+ also
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Terpfords
Posted on Monday, July 09, 2018 - 05:32 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

What kind of power are you guys making ? And what kind of et’s ?

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Gusm2
Posted on Monday, July 09, 2018 - 06:59 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

94.8 rwhp 11.18@117.95 so far
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