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Discussion Starter #1 (Edited)
I'm trying to confirm which 750's had the offset front sprockets - Any experience would be much appreciated.
Has anybody seen 750's without the offset front sprocket ?

One of our new members are trying to convert to 520 pitch chain, and later model quick change carrier as found on the F4 1000's and Brutale 910 and 1078.The 525 or 520 is not an issue though, he can go either way although I think a 520 will be fine for a loooong time on the 750.
http://www.mvagusta.net/forum/members/43730-f4[ti-fo-zi].html

I'm trying to help him buy the right stuff but maybe also create a useful thread for future use, so show us picture of what you have or had please.

Not so keen on other model carriers, more specifically the carriers which can use MV style sprockets.

Thanks in advance.
@F4[ti'fo:zi]
 

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Dons the quick change sprocket carriers fit just fine on any 750, 910, 1000, 1078.
For the 750 he just needs the larger OD spacer (76mm I believe) between the carrier and the hub bearing inner race.
On the front sprocket there are just two versions.
The stepped and the flat one.
Either way, he takes a look of his current sprocket or orders both for peace of mind.
They don't cost a fortune.
I would need to take a look at my stuff once home.
But I believe I have this one in my F4S 2002.
That will be in about 14 days.
 

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Discussion Starter #5
Cheers

Somewhere around 2002 is when things changed for the front sprocket offset.
Be aware that the early non-quick change uses a different "mv hub " 800078219 OEM Spare parts for MV Agusta motorcycles part 27. on the 750,
later so 910, 1000 etc are 8000A3243 SPROCKET MOUNTING .
Thanks @rsawkins, I figured there must have been a change by the time they got to the Evo3 with that front sprocket.:grin2:
 

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Somewhere around 2002 is when things changed for the front sprocket offset.
Be aware that the early non-quick change uses a different "mv hub " 800078219 OEM Spare parts for MV Agusta motorcycles part 27. on the 750,
later so 910, 1000 etc are 8000A3243 SPROCKET MOUNTING .
What I wrote, the Original Hub is the same on all bikes up to 2009.
Okay the Oro's had a Mg Hub.
The 2010+ Hub is the new and only Hub You can get from MV Agusta SpA today and will fit the bikes from 1997 till now.
The difference is the Spacer Pos. 27.
 

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Guys, and specially Donsy, I appreciate a lot your inputs about this subject.

I've not bought yet the rear sprocket set incl carrier as the initial deal was misunderstood and the price showed was only for a rear sprocket, but the pic showed all the set :) german language things.

Now I have another business also with a set from the 1000s, it comes with the carrier, front plate and both sprockets, all used. This will allow me to try the asm before I buy the new transmission set.

Misses the silent blocks and the bolts/nuts for the sprocket. My main concern are the silent blocks as Donsy referred that 750 and 1000 are diferent in size, if so I can't use mines.

If so I have to find both silent blocks and bolts/nuts on ebay. Other concern raised here is the spacer mentioned by Haupti, need to check this detail.

Any tips how to check chain set alignement when mounted? Saw some laser devices for sale, but are they efective?

Regards everyone,

Nelson


ps- Donsy, those parts in your pics looks like gold and diamonds :) top
 

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You will see a misalignment right away.
Because the chain will not lay in the upper guide and / or is colliding with something if you have the wrong front sprocket.
I believe I have a spare spacer if You decide on changing.
 

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Discussion Starter #10

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Hi guys, finally I have the set to make the swap on my bike.

I have another question and you might help me on this if you ever measured the part or if you have one for spare and get a quick check on it.

As the chain kit I want to buy comes with the front shouldered sprocket, I need to know the lenght of the sprocket spacer on the F41000 05-06 (maybe in all pre 2010 models with shouldered sprocket whatever would be B4/F4 have the same spacer lenght).

Can you help me on this?

I've measured with CMM machine both sprockets (original flat 14T vs shouldered 15T) from the teeths center to side contact of the spacer, I've get a diference of 2,5mm (4,5mm original vs 7,0mm shouldered.

Before this my bet would go to 3mm diference, only looking to the retainer lips marks and make it symetrical, but CMM told me I'm wrong...

So as my original spacer (part #33 on F4750 2000 STARTWIN catalogue) has 14mm long, my bet would go between 11,5mm on the F41000.

Also, shouldered sprocket dwgs show differs, some show 10.3mm, here Hauti show one dwg with 10mm, are this tenths important for the chain alignement or are absorbed by the chain and sprockets set?

Last thing, what's the reason for shouldered sprocket asm to have a washer behind the spacer? Why not a single spacer with all the lenght?
Or this washer does the job above by making the sprocket fine tuning? Looking for STARTWIN catalogue washer have several dims on sale...

Thanks in advance for your answers.


Cheers

Nelson
 

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I think you are over complicating this, just get the correct offset front sprocket for your bike. If its before about 2002/3 ( the exact date is a bit tricky!) then no offset built into it.
 
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