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Old 12-08-2012, 06:50 AM   #46
Stagehand
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I might regret this but... Whats a heim joint?
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Old 12-08-2012, 07:11 AM   #47
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Quote:
Originally Posted by Stagehand View Post
I might regret this but... Whats a heim joint?
AKA: rose joint, spherical bearing, rod end bearing, etc. They're the pivot bearings at both ends of your shock. Most dirtbikes use one on the top of the shock and the other is in the swingarm or linkage, not the shock itself. You don't see them though as they have spacers and seals covering them up.

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Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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Old 12-08-2012, 12:56 PM   #48
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Quote:
Originally Posted by Stagehand View Post
I might regret this but... Whats a heim joint?
I'm sure glad you asked that SH.In all my years on bikes I've never heard of it.Thanks for the explanation AW.

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Old 12-08-2012, 11:21 PM   #49
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Heim joints....have you tried McMaster Carr.com?
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Old 12-09-2012, 06:57 AM   #50
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[QUOTE=Airhead Wrangler:Whatever the case, anyone know where I can get my heim joints?[/QUOTE]

I just bought new bottom bearings/seals/spacers for my Progressive shock from the manufacturer - they were here in my hands within a week of ordering them. Maybe you can try the shock manufacturer for yours?
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Old 12-09-2012, 07:45 AM   #51
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I just bought new bottom bearings/seals/spacers for my Progressive shock from the manufacturer - they were here in my hands within a week of ordering them. Maybe you can try the shock manufacturer for yours?
No dice. KTM bought WP and now WP USA has the attitude that if it's not on a KTM then they don't give a shit.
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R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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Old 12-09-2012, 07:50 AM   #52
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Originally Posted by Houseoffubar View Post
Heim joints....have you tried McMaster Carr.com?
They only had SAE bearings, no metric. This is quite an oddball size. According to Prutser, it needs to be 25mmOD x 15.1mmID x 13mm thick. He's got a source for them from WP Holland, but even they are out of them right now.
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R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.
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Old 12-09-2012, 08:21 AM   #53
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No dice. KTM bought WP and now WP USA has the attitude that if it's not on a KTM then they don't give a shit.
Well that isn't very nice of them. Progressive were great to deal with - I couldn't get the sales guy off the phone because he wanted to bullshit about B.C. and related topics. They are now pushing a 465 series shock for the GS but they went to the effort to look up the part numbers and supply what applied to my 420 series shock.

We use many of those type bearings in the airline industry - unfortunately they only come in SAE sizes. Good luck in your hunt for parts.
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Old 12-09-2012, 04:59 PM   #54
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I did a little more digging this afternoon. I opened up the carbs for a checkup and found the idle jets plugged solid with crud. It seems that the PO tuned the bike to idle just fine without even using the idle circuit. Weird, cuz the thing runs just fine. It does start up VERY easily with no choke though, so I knew something wasn't quite right. Jetting was stock and the carbs appear to have not been messed with at all. I also ripped out all the pulse air crap and found the old air filter had holes all over in it, but the airbox was perfectly clean despite this. Good thing I ordered a new filter.







Only about a quarter of the holes are visible from this particular angle. The ignition wires are dried out and cracked, so they're getting replaced before they start shorting to the heads.



I also found that the bosch plugs in the bike now are two heat ranges colder than standard for the bike. Not necessarily a bad thing given my climate here, but I have a pair of stock heat range plugs on the way as well. I also bought new fuel line, but didn't get around to installing it yet. I'm chipping away at all the little stuff bit by bit.
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R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.

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Old 06-19-2013, 07:22 PM   #55
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...and a new project begins.





Just to dispell another internet myth: An R1100GS swingarm is neither 20mm narrower than nor the same width as a R100GS swingarm. I've heard mention of both being the case. I couldn't get a super-precise width on the R100GS swingarm, but it's just about exactly 10mm wider. An 1100 swingarm is 254mm wide.
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R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.

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Old 06-20-2013, 04:26 AM   #56
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Also para curious

does anyone know the relative lengths of the R100, R1100, R1150 swing arms?

what mods do HPN do for their paralever swing arm, is it in effects a reinforced R1100 arm?


looks to me that they are using an airhead para bevel box:


[IMG][/IMG]
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Old 06-20-2013, 06:40 AM   #57
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Quote:
Originally Posted by Ras Thurlo View Post
does anyone know the relative lengths of the R100, R1100, R1150 swing arms?
The R1100 is 355mm pivot to pivot, the R1150 341mm. I don't have an exact measurement on the R100 arm, but it's roughly 75mm shorter than the R1100 arm. The lateral position of the paralever pivots in relation to the swingarm pivots also differs between the 1100 and 100 arms by about a cm also. Somebody else sketched this up:



Quote:
Originally Posted by Ras Thurlo View Post
what mods do HPN do for their paralever swing arm, is it in effects a reinforced R1100 arm?
It's not a modified swingarm. They build it from scratch by welding AlMgSi1 (aka 6082) aluminum tube and machined pieces rather than using a casting. It's the same length as an R1100 arm, alledgedly much stronger, and also leaves plenty of space to use an 18" wheel without rubbing on the shock mount which is a problem with the R1100 arm. The end of the arm uses a machined ring that the paralever pivot pins thread into. The rest of the arm is composed of welded tube and plate.







This arm (maybe modified a bit) was also used on their R900RR Dakar race bikes:



Quote:
Originally Posted by Ras Thurlo View Post
looks to me that they are using an airhead para bevel box:
Yep.
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R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.

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Old 06-20-2013, 09:11 AM   #58
Ras Thurlo
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Quote:
Originally Posted by Airhead Wrangler View Post
The R1100 is 355mm pivot to pivot, the R1150 341mm. I don't have an exact measurement on the R100 arm, but it's roughly 75mm shorter than the R1100 arm. The lateral position of the paralever pivots in relation to the swingarm pivots also differs between the 1100 and 100 arms by about a cm also
so approx measurements are: (?)

G/S mono: 0
r100 Para: +5cm
HPN mono: +10cm
R1150: +11cm
R1100: +12.5cm


Quote:
Originally Posted by Airhead Wrangler View Post
It's not a modified swingarm. They build it from scratch by welding AlMgSi1 (aka 6082) aluminum tube and machined pieces rather than using a casting. It's the same length as an R1100 arm, alledgedly much stronger
Do you know approx price of this HPN SA+ associated sub-frame/shock tower?



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Old 06-20-2013, 09:35 AM   #59
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Quote:
Originally Posted by Ras Thurlo View Post
so approx measurements are:

G/S mono: 0
r100 Para: +5cm
HPN mono: +10cm
R1150: +11cm
R1100: +12.5cm
Hmmm. Not sure. Keep in mind that the measurements I gave you for the paralever type arms are from the swingarm pivots to the paralever pivots (not center of rear axle). The effective swingarm length (swingarm pivot to axle center) changes through the suspension stroke, so it's a bit tough to compare directly to a monolever where this doesn't happen.
Quote:
Originally Posted by Ras Thurlo View Post
Do you know approx price of this HPN SA+ associated sub-frame/shock tower?
Off the top of my head, no. They list the prices for the modifications to the main frame and for the shock mount subframe in their price list. They do NOT list the price for their swingarm or their machined rear hub which tells me they must be pretty spendy items.
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R80ST Gets The HPN Treatment
Seattle to TDF on an airhead

Current rides: HPN #834, '93 R100GSPD "red rocket", '73 R75/5 Toaster mongrel, '80 Ducati Pantah 500SL, '92 DR350, '67 Honda SS50, '80 Honda Chaly.

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Old 06-20-2013, 09:46 AM   #60
Ras Thurlo
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Quote:
Originally Posted by Airhead Wrangler View Post
They do NOT list the price for their swingarm or their machined rear hub which tells me they must be pretty spendy items.
had looked it up and could not find it. I fear you are right.

they look sweet

is there history of people breaking these 1100 swing arms that would justify the reinforcement?
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