Rims

Racing K Models

Re: Rims

Postby ambike » Tue Feb 14, 2017 6:07 am

I have, or had, a K-H steel rim with the KR code. I thought it was for a spool hub, but maybe not. Learn something new every day ?

I looked in my 58-68 KR Parts Book....

Shows a 19 " steel rim w/ part # 43010-52R for the TT models.

The 56 K model Parts Book shows a 19 " steel rim w/ part # 43010-52 for 52-55. Same part number, but no R. That would use the early type hub. For several years, the Legends book shows 19 " wheels were a factory option.

The rim as shown above with -52KR stamping is correct for the later style hub.

Indeed, there was another steel K-H 19 " rim for the SPOOL hubs. In the same 58-68 Parts Book, it has part # 43011-49R. There's a note : Replaced by # 43009-61R.

43009-61R is the 19 " ( WM-3 ) aluminum Borrani rim. I wasn't sure if it was used on both Front and Rear hubs, but it is. The distance between the rear spool hub flanges is wider than flanges on front hubs.

BTW : An original steel 19 " KHW rim from a WR is stamped 3095-3-RC. I don't have the front wheel here, but the rim is probably the same item. The WR uses steel spool hubs with similar dimensions as what came later.
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Re: Rims

Postby mikeslemmon » Tue Feb 14, 2017 1:07 pm

cast or stamped numbers on the part .are not always the same .as the part number .
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Re: Rims

Postby wz507 » Tue Feb 14, 2017 5:13 pm

Interesting that the full part# is stamped on the KR rim. The 18” rims, made by Kelsey Hayes Wheels, that came with my ’56 KHK have no part# stamped, instead they are labeled as follows.

Stamped - KHW SF705 (this is the front rim, part# 43003-30)
Stamped - KHW XF705 (this is the rear rim, part# 43005-35)

A picture of the stampings on one rim is attached below.

18 inch K rim markings.jpg
18 inch K rim markings.jpg (44.56 KiB) Viewed 85466 times
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Re: Rims

Postby ambike » Tue Feb 14, 2017 6:08 pm

I was wondering what stamping was on a rear, steel 18 " rim for 1956.

The factory K book shows one rear steel 18 " rim for the 52 - 56 years, and beyond.

IF there were dedicated 19 " rims for the two different rear hubs, is there truly only one 18 " rim, book Part Number 43005-35 ?

Perhaps the -35 rim was used on the K's rear hub because spoke angles on the one side were close enough, but the 19 " rims were new items and made with exact geometry.

I don't know this particular detail . However, I know if the two different factory wheel hubs were laced with the same rim, we could see one row of " tweaked " spokes. Not much, but it would show.
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Re: Rims

Postby strong56KH » Tue Feb 14, 2017 9:41 pm

Your homework tonight kiddies is to read Bruce Palmer chapter 3. There will be a quiz in the morning. :D
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Re: Rims

Postby wz507 » Wed Feb 15, 2017 9:48 am

strong56KH wrote:Your homework tonight kiddies is to read Bruce Palmer chapter 3. There will be a quiz in the morning. :D

OMG - there's a quiz today and I don't even have the text book to study from. Could somebody please provide a crib sheet with the salient details in Palmer's chapter 3? Thanks, knew you'd understand.
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Re: Rims

Postby ambike » Wed Feb 15, 2017 4:07 pm

Palmer is incredible, but....you don't need Palmer to learn about geometry.

Harley Co. either used the same 18 " steel rim with both hubs, or they did not.

That's the question I have.

For the 19 " rim in the photo above, I believe the R was added to show fitment was for the " new & improved " hub.

My early 60's KR-TT has its original 19 " Borrani on the rear. I don't believe that rim would lace PERFECTLY to an EARLY K model rear hub.
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Re: Rims

Postby 55khkjoe » Thu Feb 16, 2017 7:52 pm

Hi guys, I have a question is the rear hub pressed or partially welded, I know the seats in the hubs are different. Which brings another question what year changes from pressed hub to partially welded to full welded, and maybe pressed and spot welded the rear hubs were. I know for a fact 55-56 were pressed and the recess was small which may or may not have been a different spoke angle. In 1960 rear rims were different with the screw in the rim, and then a flat spot with the screw.
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Re: Rims

Postby 55khkjoe » Thu Feb 16, 2017 8:16 pm

interesting wz507 with the flat washer indent on your 56 rims, I have early K rims without this.
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Re: Rims

Postby ambike » Fri Feb 24, 2017 8:37 am

From the original post with pic showing :

19 Rear 43010-52KR rim with 41017-55 Hub

Yep, same rim that I have. Only one I've seen with KR suffix.

Spoke hole pattern on left & right sides are identically matched, therefore a perfect match for the -55 style hub.

For early and late rear hubs with 18 " rims, I'm still wondering if H-D used different spoke hole patterns.

Have two 18 " rims from that era, but couldn't quite make out several digits in the stamped code. Will try later.
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