Early Cad Plated K Hub Nipple Needed 43097-35

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Early Cad Plated K Hub Nipple Needed 43097-35

Postby JerrryR » Tue Oct 12, 2021 12:23 pm

Hi All,
I am in need of one nice looking Cad Plated 43097-35 Spoke Nipple for the early rear K hubs. I have lots of spokes and nipples to trade or will just buy it. I have nice cad plated -29 nipples for the later -55 rear hubs as well as nice cad plated -47A nipples for the 1/2 break fronts to trade.

[attachment=0]-35 Nipples Spokes 2.jpg
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Re: Early Cad Plated K Hub Nipple Needed 43097-35

Postby starcain » Tue Oct 12, 2021 12:55 pm

Jerry, I just happen to have one NOS and one very nice used one. NOS one measures 0.890" long. Across the flats 0.234" If you want them email or text me your address and I will get them in the mail tomorrow.

Stan
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Re: Early Cad Plated K Hub Nipple Needed 43097-35

Postby Rubone » Tue Oct 12, 2021 7:15 pm

The one with the square cut flats is correct for the K, (and BT, 45 rear, K rear, Servi-Car,) the other one is for '60 up Big twin and Sportster rear.
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Re: Early Cad Plated K Hub Nipple Needed 43097-35

Postby starcain » Wed Oct 13, 2021 6:39 am

Yup, didn't notice the slight difference in the flats. Both nipples fit the 43025-52 and 43026-52 spokes. They are not big enough to fit the 43031-36 spoke used on the 1955 and later rear hub. After doing some more digging I found an original Harley bag with part number 43097-35R. These are the same size and thread as the square cut flat ones with an extra little bump on the flat. The square cut flats have machined marks where the "R" number nipples have no machine marks. Both will work on spokes used on the early rear K hub.
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Re: Early Cad Plated K Hub Nipple Needed 43097-35

Postby JerrryR » Wed Oct 13, 2021 12:22 pm

Hi Stan and Rubone,
I have several spoke questions as a result of this thread. The first is the -35 nipples used on the 52-55 K early hub appear to fit perfectly some still in the Harley wrapper with cosmoline 43028-30 spokes. My reading of the PBs say they get the -16 nipples. I am aware that inappropriate nipples like a -29 will appear to fit where a -35 is required, just a little loose, or where a British nipple will appear to work for a Harley spoke. Were the -16s and the -35s so close that they are interchangeable?

My second question has to do with the -47A nipples used on the front half breaks for the Ks and XLs through 63. Rubone you pointed out the difference in the "step down" on the -29 and the -35 nipples that Stan posted images of with the -35 having the squared step down and the -29 having the "wedge" step down. What I have run into is 2 nipple versions that have these features and appear to fit the front half break spokes. The squared step down I would say threads perfectly, the wedged step down threads OK but gets a bit tight toward the end. Are these both -47A nipples made by different jobbers?

-47A Versions.jpg
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Re: Early Cad Plated K Hub Nipple Needed 43097-35

Postby starcain » Wed Oct 13, 2021 7:11 pm

Jerry, I'm afraid I can't offer any help on what will work with what. Not enough experience with different nipples and spokes. What I did find after going through hundreds of nipples and spokes that came from half brake front wheels and early K rear wheels is that there is a mix of both square cut flats and wedged flats. The picture is of a couple 43100-47A nipples that came from the same wheel. One is square cut and one is wedged. There were only seven wedge cut out of 40. This was an original wheel that I took apart for the rim. The wedge cut doesn't have the strike mark like the one in your picture so can't comment on that. I found the same scenario with the rear wheels. Same wheel but a mix of both cuts. Also only a handful of wedge cut compared to square cut. Both cuts on both front and rear wheels measure the same. The only conclusion I can come up with is like you surmised Jerry, different jobbers and different manufacturing methods. There is no reasonable logic that I can think of that would explain the wedge bump other then simply the method that it was made by.

Stan
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