Help With Wheels!

Dings look to be in the powder coat and if you use someone like TPCS who chemically strip, powder blast, chromate and recoat, you should lose most of the marks. A word of caution, that seller is located in Latvia not Brighton. Andy

 

The front wheel looks as though it is the larger speedo drive version.......

.....you need your speedo drive to be as near as dammit 50mm across the diameter where it sits in the grease seal.

 

Am I allowed to answer that?

 

There is, though, someone on here that has weighed all the wheels and IIRC from the thread, these come in about 3kg per wheel lighter than the early 3 spoke Brembos. Which means they must be a good addition to the project, not just a design update.....I'm going to dig it out now.

 

It's JohnB in this thread:

http://ducatiforum.co.uk/threads/losing-weight-from-a-900ss-900ss-ie.10266/page-4

He reckons 7kg off the carby Brembo 3 spoke pair.

If he is right, these wheels are good value at 500 quid a pair.

However, someone else in the same thread reckons the ie 3 spokes are nearly as light as the 5 spokes:

"Even putting the lighter weight narrower 3 spoke or 5 spoke OEM wheels from the later Ducati SS bikes provides a massive improvement in handling and acceleration. The later model narrow 3 spoke wheels are much lighter than the original wider spoke 3 spoke wheels than people realise, (nearly the same weight as the Marchesini 5 spoke wheels)."

And if HE is also right, it makes the IE 3 spoke wheels a total bargain, starting at around 25 quid a wheel on fleabay it seems (admittedly in USA)

 

Quite...but....if the 3 spokes are nearly as light, that could mean 6kg lighter than what you have.

And now I wonder....did the late carbies get a wheel update with these lightened 3 spokes or did Ducati introduce them with the IE? Which would mean no modding necessary. Anyone?

 

The three spoke Brembo front wheels on the carbed SSs are in two versions; one for the 17mm axle and smaller speedo drive; the other for the larger axle and drive...........weigh roughly the same although the larger (later from about '95) is slightly lighter as there is less metal in the speedo drive housing.

The Brembo three spoke IE wheels are different to the carbed SS wheels, inasmuch that the spokes are wider at the hub rather than the rim like the carbed ones.
They also have a 'casting line' down each side of the spokes similar to the Monster wheels.
I also believe the speedo drives may be different again.

Whether they weigh less than the carbed SS wheels, I don't have a clue.

 

The lighter 3 spoke Brembo wheels were only ever fitted to the later IE bikes as standard. All the carby bikes had the original heavier 3 spokes.
Many years ago now I did get the chance to weigh all the wheels including the later 3 spoke Brembo's and the original MK 1 SL Marvic wheels. I used the same scales and they were all stripped of tyres, bearings, wheel weights etc. I'm away from home at moment so haven't got the weights to hand.
The later 3 spokes were just a little bit heavier than the 5's but not by much if my memory serves me right.
One of the biggest surprises I came across was the differences in tyre weight, massive !!! [emoji15]
There isn't an easy straight swap with SS wheels, you will always have to alter something else like the gearing in the speedo drive, bearings or spindles. The only way to get straight bolt on light weight alternative is the spend a lot of dosh on some new mag' marvics or some carbons.
Ian.

 

I put ie wheel(and multi 1000 forks) on my 907 that had carby wheels. The axle and speedo drive are 25mm. The speedo drive has different gearing making my speedo read +33%. I got round that by putting a km converter on the cable that made it -5% so at 30 indicated I was actual 34ish.

 

With my 750 and the stock 60 profile front tyre, the speedo was ambitious reading 30mph when I was doing 25mph......

....changing the tyre to the stock 900 SS 70 profile, the speedo is now spot on at 30mph.......

 

I've put a set of 5 spokes and some forks off an '02 SS/IE on my '96 SS. As I'm using '96 SS clocks I needed to swap the worm drive and the toothed wheel in the speedo drives, they are a straight swap and speedo now bang on.
Worth noting though, you can't do the same swap with the earlier carby bikes as the front spindle is smaller.

 

The whole (or hole) housing for the speedo drive on the carby SSs differs between the early wheels and the later ones....at fist glance the wheels look the same, but the giveaway is the thickness of the brake disc 'retaining ring' in the hub casting on the speddo side............thin ring approx 4mm - circa '95 onwards; thicker ring approx 6mm - circa before '95.

The only things that are interchangeable are the bearings and axle..........but none of the speedo drive gubbins is.

 

The internals of the later carby ones are interchangeable with the IE ones Al, had to do this on mine. [emoji1303]

 

Stick some ST4S legs in and jobs a goodun. Nice tin legs no messing about with bearings axles etc. You will need 65mm calipers as well but all that stuff is cheap on ebay and you might break even selling on your old bits.