Sundial Moto Sports

The 77 GS750 has spoked wheels + rear disc brake. Some of those parts might be useful.

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BAS (Bike Acquisition Syndrome) - too many bikes but have room for more

Suzuki:
GT750 2x75
GT550 72 project & 75
GT380 72
T500 73 project
T350 69, 71 & 72 project
T250 72
Honda 85 CB650SC & 86 CB700SC
09 Triumph Bonneville SE

Hi Mark, thats interesting I had not considered that solution I will look into that and when I have completed I will post some pictures.
Thanks for your suggestion.

Eamonn

Here are a couple of pics of my bike. I believe the models that have this wheel hub are the UK RD250 and 400 DX. I have mine laced to a 2.5" rim and run a 110/80-18 tire. It has 36 spokes like most Yamaha race bikes.
This hub uses a standard RD type brake disk, the kind with the aluminum center used on all US spec RDs up to 1978. I have a different disc on my bike just for appearance.

Here is a hub on ebay UK now. A bit pricey, I've seen them for less. I would try to find a seller with the spacers, caliper carrier, etc incuded.

The Suzuki GS does have a good rear disc brake but it is fairly large. I used that setup to convert my GT750 to rear disc.