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Hub and cone mismatch

Technical help for Series one, two and three Lambrettas. Models include the Li, Li Special, TV, SX, GP, Serveta and API/SIL models

Hub and cone mismatch

Postby dickie » Wed Apr 08, 2020 4:14 pm

Folks,

a pal of mine just swapped a few of motors around, but swapped hubs to keep paint matching.

He went out on one of them which is a pretty quick motor and found a wobble after about 20 miles, luckily, no fall or anything.

He showed me the evidence inside the hub on a photo and i suspect that he has mixed the cones up and he now has an 8° cone in an early 11° hub. And he has sold the other one with the opposite mismatch. There's another motor involved somehow, but I'm not dead sure how; all a bit confusing.

This is all suspicion as I've never actually held the parts, just photos (lockdown makes life tricky).

The part number inside the hub is 19945100, but i cant find this using google or the parts lists I have. Does anyone know what hub this is?
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Re: Hub and cone mismatch

Postby Fast n Furious » Thu Apr 09, 2020 12:07 am

This is the 11 degree hub as fitted to all series 3 machines
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Re: Hub and cone mismatch

Postby dickie » Thu Apr 09, 2020 11:21 am

Fast n Furious wrote:This is the 11 degree hub as fitted to all series 3 machines


I thought later s3 and all gp were 8 degrees?

Regardless, that confirms part of my suspicion. I think he has a later 8 degree cone from a bike I sold him.
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Re: Hub and cone mismatch

Postby Fast n Furious » Fri Apr 10, 2020 1:21 am

Only ever seen 8 degree cones on engines with GP shoes and GP brake cams myself.
There may have been some crossover?
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Re: Hub and cone mismatch

Postby dickie » Fri Apr 10, 2020 6:50 am

Fast n Furious wrote:Only ever seen 8 degree cones on engines with GP shoes and GP brake cams myself.
There may have been some crossover?


Thanks
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Re: Hub and cone mismatch

Postby shane BBoys » Sat Apr 18, 2020 5:31 pm

After some advice, I have a remade rear hub, 19-54-5120. (FFI)2. P. 1223: these are all the numbers on the inside, I was hopping to repaint and reuse on my next project question is what pitch would the cone be as the fool I am I’ve lost the 1 that I had with it?
Cheers Shane.
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Re: Hub and cone mismatch

Postby Fast n Furious » Sun Apr 19, 2020 1:56 am

Probably easiest to take it in to your nearest reputable dealer who should be able to sort that for you.
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Re: Hub and cone mismatch

Postby shane BBoys » Sun Apr 19, 2020 7:29 pm

It turns out it’s a FA Italia hub when I look at it properly. FnF all shops are shut are they not?

Cheers Shane.
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Re: Hub and cone mismatch

Postby Fast n Furious » Sun Apr 19, 2020 10:05 pm

They are on Sunday's. :lol: :lol: :lol:
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Re: Hub and cone mismatch

Postby shane BBoys » Sun Apr 19, 2020 11:44 pm

Yup and through the week too for the foreseeable!

:?
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Re: Hub and cone mismatch

Postby gp200ts1 » Mon Apr 20, 2020 1:23 am

Contact on small wheels in Swansea, still doing mail order.
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Re: Hub and cone mismatch

Postby gunnerdaz » Mon Apr 20, 2020 1:05 pm

dickie wrote:
The part number inside the hub is 19945100, but i cant find this using google or the parts lists I have. Does anyone know what hub this is?


I have had the same problem. I have a hub with the same part number it's a later type with no recess and double lip around brake liner.. been looking online and it says 8 degree cone so I'm a bit lost on which to buy now.
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