V4S offset triples - school me

OK IMA confirmed via email that we are all correct - fat part of the insert goes towards rider to reduce the offset. Enshrining this here for future passers by.

IMA adds an extra locking nut on the top side so that the steering stem stays locked to the steering head at all times. This is meant to facilitate dropping the top and bottom triples independently of the steering stem and bearings, so that you can change out offsets relatively easily in the future.



Also, these steering stops they send have to be adjusted just right on the bottom triple so they don't interfere with the steering on either side. Best to do this after everything is mounted so you can see where they rub and where they don't for adjustment.



@endodoc thanks for the tip on the bearing. I didn't bother with tapered and just re-used my OE bearings since the bike has only 1500 miles on it and OE bearings are still good. More than anything, I didn't want to wait around for the bearings to arrive and dust seals are back ordered. If anyone did want to change out the bearings though, keep in mind that you can change out the entire "bush" (top and bottom races, bearings and dust seals are all encapsulated inside what Ducati calls a "bush" so instead of hammering out the races and hammering new races in, you can replace the entire bush unit as a package if you wanted - one bush up top and one at bottom FYI. You gotta buy two bushes, two bearings and two dust seals).

MaverickiB said:

My life was changed by Dzus fasteners. Switching from OEM to them has saved me countless hours. I love being able to pop off any bodywork panel in less than a minute.

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Dude when I took the body work off that bike your buddy sold me after dealing with the Ducati stuff it was like the sun burst forth from the clouds lol

TomFoolery said:

OK IMA confirmed via email that we are all correct - fat part of the insert goes towards rider to reduce the offset. Enshrining this here for future passers by.

IMA adds an extra locking nut on the top side so that the steering stem stays locked to the steering head at all times. This is meant to facilitate dropping the top and bottom triples independently of the steering stem and bearings, so that you can change out offsets relatively easily in the future.

View attachment 39927

Also, these steering stops they send have to be adjusted just right on the bottom triple so they don't interfere with the steering on either side. Best to do this after everything is mounted so you can see where they rub and where they don't for adjustment.

View attachment 39928

@endodoc thanks for the tip on the bearing. I didn't bother with tapered and just re-used my OE bearings since the bike has only 1500 miles on it and OE bearings are still good. More than anything, I didn't want to wait around for the bearings to arrive and dust seals are back ordered. If anyone did want to change out the bearings though, keep in mind that you can change out the entire "bush" (top and bottom races, bearings and dust seals are all encapsulated inside what Ducati calls a "bush" so instead of hammering out the races and hammering new races in, you can replace the entire bush unit as a package if you wanted - one bush up top and one at bottom FYI. You gotta buy two bushes, two bearings and two dust seals).

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Excellent right up Tom, thanks for taking the time to do it.

I was wondering how I could get at those eccentrics to change them without taking the whole front end apart.

Was thinking about the overall design, you can change trail just by changing one eccentric if designed right.

The bottom clamp would need some kind of very solid pivot mechanism for the steering stem, then you could have a setup where you could just change the top eccentric and adjust the trail.

Would be an easier to adjust system, kind of a quick change setup.

Steven31371 said:

Excellent right up Tom, thanks for taking the time to do it.

I was wondering how I could get at those eccentrics to change them without taking the whole front end apart.

Was thinking about the overall design, you can change trail just by changing one eccentric if designed right.

The bottom clamp would need some kind of very solid pivot mechanism for the steering stem, then you could have a setup where you could just change the top eccentric and adjust the trail.

Would be an easier to adjust system, kind of a quick change setup.

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On my old 996 you could adjust rake by making a simple adjustment under the top clamp...it's been done before.

Evol Tech makes triples that are offset and rake adjustable. That’s what’s going on the r1 I’m building.

I don’t see a set for the panigale but might not hurt to call.

Here’s a useful summary on offset:

brad8266 said:

Evol Tech makes triples that are offset and rake adjustable. That’s what’s going on the r1 I’m building.

I don’t see a set for the panigale but might not hurt to call.

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SBU lists them:

https://www.superbikeunlimited.com/...nd-chassis-components?sort=p.price&order=DESC

craig bush said:

SBU lists them:

https://www.superbikeunlimited.com/...nd-chassis-components?sort=p.price&order=DESC

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Right but they aren’t rake adjustable.

The set for my r1 is both offset and rake adjustable

brad8266 said:

Right but they aren’t rake adjustable.

The set for my r1 is both offset and rake adjustable

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ah, my bad.

brad8266 said:

Right but they aren’t rake adjustable.

The set for my r1 is both offset and rake adjustable

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Brad we need to see pics of this trick R1 you are building

TomFoolery said:

Brad we need to see pics of this trick R1 you are building

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That about the most accurate pic at this point in time lol. Still fiddling with the engine at the moment. Took me weeks just to get new main/rod/counter shaft bearings. Finally fitted them up yesterday to check clearances with some plastigauge. Waiting for head work and cams to get back from cali and for my local machine shop to light diamond hone my cylinders, then the engine will be ready for assembly. A lot of the other major parts won’t be in for a few months

brad8266 said:

That about the most accurate pic at this point in time lol. Still fiddling with the engine at the moment. Took me weeks just to get new main/rod/counter shaft bearings. Finally fitted them up yesterday to check clearances with some plastigauge. Waiting for head work and cams to get back from cali and for my local machine shop to light diamond hone my cylinders, then the engine will be ready for assembly. A lot of the other major parts won’t be in for a few months View attachment 39945

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Are you increasing the cylinder bore and displacement?

Why hone the cylinders, are they that rough that your getting wind age around the pistons?

Steven31371 said:

Are you increasing the cylinder bore and displacement?

Why hone the cylinders, are they that rough that your getting wind age around the pistons?

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I am not increasing bore or stroke. I had to tear this engine down to check a few things since it sat outdoors and may have had water in it. Decided to go with new piston rings so to do that need a light hone on the cylinders just to give it a fresh crosshatch. I could had just kept it as is but figured give it the extra care while I’m in there.

@brad8266 you doing anything to the gearset - under cut, cryo, ISF polishing, etc…

craig bush said:

@brad8266 you doing anything to the gearset - under cut, cryo, ISF polishing, etc…

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Nope, leaving the gear set alone totally this year.

wow, this is a ground up build. What year R1?

TomFoolery said:

wow, this is a ground up build. What year R1?

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Yeah pretty much ground up build. It’s a 2016. Should be a nice bike when it’s done.

brad8266 said:

Yeah pretty much ground up build. It’s a 2016. Should be a nice bike when it’s done.

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Here's one of the final pics of my R1 right before I sold it. Loved the kenny roberts paint scheme. I need to find one of these tank extenders for the V4.

OK after putting some track miles on the bike with the new triples, I certainly give it the full thumbs up. I am running the 27mm offset and love it. Calmed down the front end significantly.

TomFoolery said:

OK after putting some track miles on the bike with the new triples, I certainly give it the full thumbs up. I am running the 27mm offset and love it. Calmed down the front end significantly.

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great to hear that

so the front more planted?

and fast steering didn’t get slowed so much?

So you got the IMA? are there diferent models, or just one