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monoposto ---> biposto conversion

15K views 41 replies 21 participants last post by  DGJ 
#1 ·
hi there,

I'm new to the site but have done lots of reading in the archives. I currently own a M695, but recently a special edition sc caught my eye (black with gold decals). I've read that this conversion is possible....but i still have some questions.

what is under the seat cowl once it is removed from a mono...a passenger seat? if not could i swap out the seat for a biposot seat and still use my seat cowl?

i would probably get the boomtube pipes to replace the stock so that would leave room for passenger pegs? would one from a biposto bolt right on? or a rizoma aftermarket one?

and by adjusting the pre load on the rear shock,would that be sufficient for a passenger?

are there any other modifications required that i've missed?

im really in love with this bike up for sale in my area, but cant justify it if my wife can't ride along.

thanks for your input.
tt.
 
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#2 · (Edited)
The seat is easy. A bipoto seat and cowl will just clip on, but I'm not sure if the mono and biposto cowls are the same - (they do look it, except for the pad) - but I can check (I have a mono and a bip) but not for a day or two as the mono seat is at the paint shop.

If your passenger is not too heavy, most shocks can be uprated with a stiffer spring, or a buy a new unit.

The hard part is fitting passenger pegs, as there nowhere to mount them on either side, but some people have made up some bolt on pegs.

Maybe you can buy a mono rear end from the guy selling his Red SC on the other thread as he must have all the parts from his conversion. There are a lot of parts to change though - much, much more than you'd think - and it's not nearly as pretty.

Try JCPak bikes. They may have a solution?

I did half of what you're proposing, the other way around... See the difference.



...but I still have twin shocks and can mount Mack passenger footpegs on these hangers, one each side.

 
#39 ·
I did half of what you're proposing, the other way around... See the difference.

Love this one Dutch.
So this started its life as a GT? I'm thinking of doing something similar with my GT.

Got a few questions for you if you've got the time:
I have a PS tank but in order to mount it up I'll have to relocate the ignition. Did you have to do that to yours?
Did you powder coat the engine cases black?
Are those GT wheels coated black or you running the aluminum wheels off a sport?
Curious to hear what front fender that is.
What headlight bucket are you running?

Cheers,
Pat
 
#5 ·
If you do buy the gorgeous LE, I would buy a biposto seat, but there's no need to mount the mono cowl on it, simply swap seats over whenever you need to take a pillion. (It's much quicker than undoing four allen bolts anyway).

Then, get some custom passenger pegs made up that will bolt to the subframe and can be removed.

Finally, see a shock/suspension specialist and get a new spring for dual purposes...
 
#8 ·
Don't do it !

IMHO Get yourself a biposto or a GT for 2 up riding They are both fantastic rides. Don't mess with the LE, they are too rare and too beautiful. Besides I want it. PM me it's location and I'll save you the trouble of having to make such a dificult decision ;)
 
#10 ·
I have a SE and am looking to get a biposto seat to swap quickly as well for any chicks that would like a ride. I hate the look but sometimes you gotta just give them a ride!
 
#11 ·
Consider a hybrid solution, such as a BiPosto swing arm, shocks, seat, exhaust and then JCs Mack hangers with pegs (the BBTs are terrible looking). It's clean and simple and in my opinion I like the un-bent swing arm better. Of course, you can't do Zards, which is unfortunate.
 
#12 ·
Do it!

I own the ex-speedfreak bike that Greggers posted the link to and the conversion is neither too technical nor too expensive. A pair of 900SS pegs, some steel plate, some spacer tube, some longer bolts and a biposto seat.
The mono and biposto seat cowls are exactly the same and swap over, but like London said, just swap the seats and don't mess about with the cowl swap.
To mount the pegs on mine may take 10 minutes at most.
Like has been said the limiting factor is the single shock. Taking my kids for a ride is fine, but the bike certainly feels it when Mrs H gets on there! And she is not of excessive proportions! My advice - get another shock set up for two up riding and swap that over as well.
This is a bolt-on and bolt-off conversion and I don't agree that it would decrease the resale value of the bike. In fact I think it would make it more appealing to potential buyers, like the bike I own. If the black and gold bike was a biposto wouldn't you already own it?
 
#13 ·
...
This is a bolt-on and bolt-off conversion and I don't agree that it would decrease the resale value of the bike. In fact I think it would make it more appealing to potential buyers, like the bike I own...
:rolleyes: Well, you're thinking incorrectly. Especially when it comes to an LE, it's an LE for a REASON. Self-justifying ones frankensteining actions won't change its true value when it comes time to sell.

Damn you guys are killin' me! :mad: Keep the mono a mono! If you want a bip then look for one, don't bastardize a mono for the [typically occasional] 2-up ride. There's also the fact that a GT puts you in a better position for 2-up riding since with a sport you would be leaning much more forward while your passenger is still in a mostly-upright sitting position. Sure, they probably could lean forward with you, putting most of their weight on you, but that puts them in a funny position and quite possibly make the ergonomics more uncomfortable. No bitchin' about back/neck/wrist pain from ANYONE who insist on riding 2-up in a sport (non-GT) position.

I guess if you want to devalue a mono, much less an LE, go for it as it's your cash :rolleyes: You'll be doing all the other owners/sellers a favor by increasing the value of the dwindling supply of monos...:D
 
#14 ·
PM sent
 
#18 ·




wow, this makes it look really easy. truth be told to everyone who sais don't do it because it will devalue it, im buying a bike to ride and enjoy. I dont plan on selling it for a long time if ever....to me i'd rather loose a bit of money over a long period of time rather then not enjoy it while i have it. I'm not buying stocks, im not doing this as an investment.
 
#20 ·
Do it TT! You know you want to!

If I ever choose to sell my bike it will be my choice as to whether or not the potential buyers know it has been "modded" and it is definately not "frakensteined". If I sell it with the dual seat and pegs they will know, otherwise there is nothing that would indicate a dual conversion has ever taken place.
If I had bought the bike as an investment I wouldn't be riding it! If I had, wouldn't making the most of my investment and keeping the wife happy be wise choices?
I might have to get a Limited Edition plate and some gold decals made up :) so I don't lose any more money.

Go for it TT
 
#21 ·
The arguments for and against modding a modern classic bike which is going up in value will rage on and on...

...The problem is that right now "buyers can't be choosers", and have to snatch whatever model they can find and make the best of it to suit their needs, that's why this forum is full of people with clip-ons on their GTs, handlebars on their monos and, mono rearsets on bipostos and PS's without fairings... etc...

If it's reversible, then no harm is done, but if not - well the bike is now private property, and the owner has the right to do whatever they want, however much some of us might protest.
 
#22 ·
... Besides, if you plan on keeping the bike, make it fit your purposes not the next owner's.
No shit but one who does any customization shouldn't bitch when they can't get what they want for the bike or if it shows up here in the forum and we tear it apart. I've heard/seen it sooooo many times, people state, "I'm never gonna sell this <insert vehicle here>!" and lo and behold they're eating their words a few moons later. So when some one makes that claim it's an empty one in my book as only time will tell (much like marriage...until death do us part...).

As far as SEs go, stick-on graphics and a plaque on an unsold '06 doesn't impress. When my bike is done it'll have a plaque stating, "#1 of 1". :cool:.
A VIN verification can extinguish that dick-head attempt. As well as the true owner of #1 of 1 (or whatever number is chosen).

...
If I had bought the bike as an investment I wouldn't be riding it!
No where did I say anything about "investment". I already know that is an ignorant move by anyone except for those exceptionally rare vehicles.
 
#24 ·
A VIN verification can extinguish that dick-head attempt. As well as the true owner of #1 of 1 (or whatever number is chosen).
Take a deep breath and reread what I wrote, you didn't get it. Maybe you never will.
 
#23 ·
What's wrong with making some foot peg brackets that are easily removed and getting an extra seat that literally clicks on and off? I can see where changing the swing arm would be a more "permanent" change, but I don't think the OP is necessarily going that route.

Btw if you do make some of those foot peg brackets up let me know how that goes, I'd like to get a set made one day for when I ditch my black triangles on my biposto?
 
#26 ·
Thanks to all for continuing to develop interesting mods for the duc.

Another possibility for exhaust hanger/rear footpeg placement

see photo in link I have posted here in past:
DUCATI�@ƒo�[ƒWƒ“ƒhƒDƒJƒeƒB/ ƒJƒXƒ^ƒ€DUCATI�FSPORT 1000

The exhaust hanger extends from the foot peg brackets. My guess is that you may be able to attach some rear pegs to wear it mounts to the pipe. Though it may be too much stress/Wt., for it.

Problem is I don't know who makes it. :(
 
#29 ·
Another possibility for exhaust hanger/rear footpeg placement

see photo in link I have posted here in past:
DUCATI�@ƒo�[ƒWƒ“ƒhƒDƒJƒeƒB/ ƒJƒXƒ^ƒ€DUCATI�FSPORT 1000

The exhaust hanger extends from the foot peg brackets. My guess is that you may be able to attach some rear pegs to wear it mounts to the pipe. Though it may be too much stress/Wt., for it.
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Wow that looks real nice, but I think this wouldn't work, even if your exhaust could use those attachment points, because;

i. It puts the passsenger pegs way too close to the riders heels.

ii. This mounts the passenger pegs to the rider's rearsets, which is not so great in itself, but what makes that unacceptable is that it mounts via the two 5mm heelguard bolts - that's way too weak of a mounting point.
 
#27 ·
Thats quite a clever design on the Japanese bike.
One caveat though, this and another exhaust( possibly the Staintune ) have mounting points that are forward of the rear shock, the OE and pretty much every other endcan has a mount thats rearward of the shock.
 
#30 ·
It's funny because I did the opposite. I turned my biposto into a mono. I wish I bought a Le or a PS I want a dry clutch. I now have a hybrid of a sort, mono good looks and bad ass zard with a wet clutch. This may actually help me to sell the bike when the time comes. Some people love or hate the dry as well as the wet clutch. It is nice being able to hear the zards in all their glory without a bunch of clutch noise.
Land vehicle Vehicle Motorcycle Motor vehicle Car



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#31 ·
It's funny because I did the opposite. I turned my biposto into a mono. I wish I bought a Le or a PS I want a dry clutch. I now have a hybrid of a sort, mono good looks and bad ass zard with a wet clutch. This may actually help me to sell the bike when the time comes. Some people love or hate the dry as well as the wet clutch. It is nice being able to hear the zards in all their glory without a bunch of clutch noise.
View attachment 112334


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Uh oh, now all the dry clutch purists will pitch a fit... : )
 
#32 ·
Funny you should mention dry clutch vs wet clutch...

...I now have two SCs; one wet and one dry. When I'm on the PS, strangers ask me what the f*ck is wrong with my bike, plus the plates squeak when I slip the clutch to pull away - which sounds bloody awful really - whereas my biposto is lovely, smooth and quiet and just does the job of getting me into gear. The biting point is also more in the centre of the lever. I have to admit that it's obvious the wet clutch is better...

There is also some spring/thing that all my mechs insist on changing for every service, as if it fails "it's a disaster", and they all agree that wet is better mechanically.

But I prefer my noisy open dry clutch. ... Strange.
 
#34 ·
I have to admit that it's obvious the wet clutch is better...
Of course it's better. That's why EVERYBODY else already uses it, and even Ducati has finally caught on.

Regardless, the dry clutch is still much cooler. It's like an automatic watch verses is quartz. Sure the quartz is more reliable, accurate, and cheaper, but automatics just have character, much like a dry clutch.
 
#33 ·
I agree the wet clutch is better overall as far as functionality, maintenance, longevity. But I would be a liar if I said I don't list after the look and the sound. I have been kicking around the idea of installing the 848 dry slipper clutch conversion kit. I could always go back to the wet at any point and sell off the 848 kit


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#38 ·
Another option/version of the mono>bip conversion:

The idea was to create something that could be bolted on (and off) with zero/minimal frame mods. A single hole needs to be drilled in the upper mount on either side but otherwise it just bolts on. It uses some simple minimal aftermarket foot pegs for a Harley.
Obviously having the clearance of the QD box exhaust helps but it may work with other exhaust systems...
 

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