R-1 Brake hub rotor problem has been solved

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Mark Loraine
Posts: 191
Joined: Fri May 08, 2009 10:51 pm
Vintage Karting items owned: ProX 77,McC R1,Bug Stinger Dual.
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Location: SWNY14755

R-1 Brake hub rotor problem has been solved

Post by Mark Loraine » Sat May 02, 2026 4:48 pm

New Billet CNC R-1 McCulloch brake hub rotor

Not mine and not related

Title "New , Quality Kart Disc Brake Hub for Vintage 1961 and 1962 McCulloch Karts"

https://www.ebay.com/itm/306913233301?_ ... R_ydmaa9Zw


Not sure if not having a 1 inch steel sleeve is going to be an issue or not.

REAR
Posts: 1371
Joined: Sat Jun 16, 2007 10:19 am

Re: R-1 Brake hub rotor problem has been solved

Post by REAR » Mon May 11, 2026 6:39 pm

What was the original construction technique, did it have a sleeve ? Almost would think this is a failure waiting to happen.

R.E.A.R.

Mark Loraine
Posts: 191
Joined: Fri May 08, 2009 10:51 pm
Vintage Karting items owned: ProX 77,McC R1,Bug Stinger Dual.
User Agreement: Yes
Location: SWNY14755

Re: R-1 Brake hub rotor problem has been solved

Post by Mark Loraine » Tue May 12, 2026 6:52 pm

REAR wrote:
Mon May 11, 2026 6:39 pm
What was the original construction technique, did it have a sleeve ? Almost would think this is a failure waiting to happen.

R.E.A.R.
I believe it was a cast in steel boss, like they do for the McCulloch rear wheels.......maybe a 1/4" keystock made of brass or aluminum could stand in for that steel insert?

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