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Old 02-08-2013, 12:58 PM   #46
Ras Thurlo OP
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Quote:
Originally Posted by CrazyIvan View Post
It's definitely not dead center. I'm building one a the moment, if you wan't to use a 140 rear tyre you will end up with about 15mm offset.

If you go the monolever route, you will probably end up in the same ballpark, to use a 140 tyre the wheel needs to be spoked out of center 10mm or more.
thats destroyed an urban myth for me that the 1100 paralever sucks because of the offset!

how does it ride with the engine move to the right? Is the assumption right that engine move has less effect on handling than the offset you are curing?

My take away from your comments are that since I have my frame with the TAG guys anyway, I might as well move my engine mounting and get the vespa vibe. This will give me less offset with a 140 set up on a monolever and will give optionality for a para conversion.

Ras Thurlo screwed with this post 02-11-2013 at 11:30 AM
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Old 02-08-2013, 01:21 PM   #47
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Quote:
Originally Posted by Ras Thurlo View Post
how does it ride with the engine move to the right? Is the assumption right that engine move has less effect on handling than the offset you are curing?
I might as well move my engine mounting and get the vespa vibe. This will give me no offset with a 140 set up on a monolever and will give me optionality for a para conversion.
Steady on !

The only thing you need to change are the engine spacers. You just move the engine to the right by 3 or 4 mm.
The engine needs to move a bit to get a better alignment with the 1100 swingarm.

You might want to grind off a mm or so of the tab where the centre stand spring attaches.
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Old 02-08-2013, 02:51 PM   #48
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Originally Posted by Airhead Wrangler View Post
I can't give you numbers, but here's a photo of an HPN Rallye Sport mid-build. To my eye, that looks pretty close to dead center. If not, it's still definitely less than 32mm. I know they give you different engine spacers to move the whole engine and trans over to the right a bit which reduces the offset. What further modifications they do, I'm not sure.



This what you get when you just bolt it all together (I think I stole this photo from Lornce):

In the top pic they are using the airhead drum brake final drive so alignment should be no problem
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Old 02-09-2013, 12:49 PM   #49
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Steady on!
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Old 02-11-2013, 11:43 AM   #50
Ras Thurlo OP
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Quote:
Originally Posted by CrazyIvan View Post
Steady on !

The only thing you need to change are the engine spacers. You just move the engine to the right by 3 or 4 mm.
You might want to grind off a mm or so of the tab where the centre stand spring attaches.
any of you out there have an extended monolever with offset rim for a 140 tyre?

How is the handling?

Ras Thurlo screwed with this post 02-11-2013 at 04:19 PM
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Old 02-14-2013, 11:32 AM   #51
Ras Thurlo OP
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TAG Monolever

A couple of you have asked for more info on the TAG monolever:

standard +100mm length, aluminium, shock mounting point on swingarm allows for a shock that is the same dimensions as the standard shock and they sell an Ohlins designed to go onto it (see photo).

The HPN/Moorespeed monos have the mounting point a bunch further back. Does this approach give more 'control' because of lower lever pressure?

The interesting thing is that the TAG swingarm is angled at 6 degrees to the right, so that you can offset your rim for a 140 tyre and not have too much overall wheel offset.

From what I had understood on a 'standard' extended mono, you need to offset your rim the approx 12-14mm from center-line to clear a 140.

With the TAG design you have approx 10mm of play on your rim offset to get back to centreline, so resulting in an approx 2-4mm offset.

They said that there is not enough width at the gearbox end to allow for a greater angling of the mono that would totally remove this offset.

does this all make sense?


[IMG] photo TagMonolever1_zpsefa8e1fa.jpg[/IMG]


[IMG] photo TagMonolever3_zps14f0b99d.jpg[/IMG]


it comes with this 'stub' driveshaft that is made to be welded to a standard mono driveshaft

[IMG] photo prolungaalbero_zps90581502.jpg[/IMG]

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Old 02-15-2013, 12:37 PM   #52
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tag

Howdy,

I am learning some Texan :)

Having played with tag arms for more than 10 years, will give you my 2 cents.

I like them but they are more delicate that the elongated steel swimgarm ala HPN. Steel vs alum fusion. That said...I never had any problem with them.

I know of people that cracked the swing arm but they didnt follow Tag's recommendation mods to the frame and they didn't respect the schock travel which is max 270. Ezio will tell you 260 mm because h wants to play safe:)

If i have to pick between the 2 and money is not issue go definitely with the TAG arm. Are you kidding me?
I know that TAG had some of them reinforced...buy adding some addl materials in certain areas -check out my bike and look very closely to my swingarm:

http://www.desertpistons.com/4strokesd/TAG/Tagindex.htm

I miss the lira...everything now is double with the Euro in Italy...

Tag bikes and set up have been tested and tested and tested and tested and tested and tested in racing competitions by enduro professional racers so you will not have a problem with what Ezio set you up with.

The last TAG bikes have an oilhead swingarm with the shock attachment done on the side as the monolever does. Since i have never heard of them having any issues, I have copied the set up and will test my last shortstroke enduro in few months. I will ill report on this. Having cracked BMW reinforced frames in the past, i know i will test it right...:)




Quote:
Originally Posted by Ras Thurlo View Post
A couple of you have asked for more info on the TAG monolever:

standard +100mm length, shock mounting point on swingarm allows for a shock that is the same dimensions as the standard shock and they sell an Ohlins designed to go onto it (see photo).

The HPN/Moorespeed monos have the mounting point a bunch further back. Does this approach give more 'control' because of lower lever pressure?

The interesting thing is that the TAG swingarm is angled at 6 degrees to the right, so that you can offset your rim for a 140 tyre and not have too much overall wheel offset.

From what I had understood on a 'standard' extended mono, you need to offset your rim the approx 12-14mm from center-line to clear a 140.

With the TAG design you have approx 10mm of play on your rim offset to get back to centreline, so resulting in an approx 2-4mm offset.

They said that there is not enough width at the gearbox end to allow for a greater angling of the mono that would totally remove this offset.

does this all make sense?


[IMG] photo TagMonolever1_zpsefa8e1fa.jpg[/IMG]


[IMG] photo TagMonolever3_zps14f0b99d.jpg[/IMG]


it comes with this 'stub' driveshaft that is made to be welded to a standard mono driveshaft

[IMG] photo prolungaalbero_zps90581502.jpg[/IMG]
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Old 03-13-2013, 04:18 PM   #53
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Just heard from TAG that they got their web page up (but not finished).

http://www.tag-moto.com
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Old 03-13-2013, 04:37 PM   #54
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Originally Posted by Airhead Wrangler View Post
Just heard from TAG that they got their web page up (but not finished).

http://www.tag-moto.com
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Old 03-13-2013, 05:09 PM   #55
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Quote:
Originally Posted by Ras Thurlo View Post
any of you out there have an extended monolever with offset rim for a 140 tyre?

How is the handling?
I'm using a 140 tire on my ST rim size 2.50x18"
The handling is fine and it is almost the same as when I use a stock wheel.
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Old 03-14-2013, 08:39 AM   #56
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Quote:
Originally Posted by Prutser View Post
I'm using a 140 tire on my ST rim size 2.50x18"
The handling is fine and it is almost the same as when I use a stock wheel.
How far did you have to dish the rim over? 12mm? You relaced with Excels right?
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Old 03-14-2013, 11:15 AM   #57
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How far did you have to dish the rim over? 12mm? You relaced with Excels right?
I think its 9mm with the excels on my bike.
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Old 03-14-2013, 06:08 PM   #58
Airhead Wrangler
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Quote:
Originally Posted by Prutser View Post
I think its 9mm with the excels on my bike.
That's with a 2.5" x 18" excel?
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Old 03-15-2013, 12:21 AM   #59
Ras Thurlo OP
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Quote:
Originally Posted by Prutser View Post
I think its 9mm with the excels on my bike.

do the excel rim nipples cope well with the offset? Or do you have to bend the spokes a bit?
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Old 03-15-2013, 01:55 PM   #60
Prutser
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Quote:
Originally Posted by Beater View Post
How far did you have to dish the rim over? 12mm? You relaced with Excels right?
Quote:
Originally Posted by Airhead Wrangler View Post
That's with a 2.5" x 18" excel?
Quote:
Originally Posted by Ras Thurlo View Post
do the excel rim nipples cope well with the offset? Or do you have to bend the spokes a bit?
@ Ras No need to bend the spokes.
@ Airhead Wrangler Yes the 2.5 x 18" excels
@ Beater I got two off-set wheels With one I use a spacer of 5mm thick. I have to measure them to give you the real
off-set. I will let you know a.s.a.p.
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