Larger front disc.

Matchless

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I am currently building a BSA OIF A65 to which I'm fitting a set of T140 forks. This is to enable me to fit a disc brake rather than the comical hub effort. Do any of you chaps know of a modern floating disc, 12 to 13 inches in diameter, which is close enough in offset & centre bore size for me to modify for the T140 hub. I'm too tight to fork out for a Norman Hyde disc. I'll be adding a Yamaha Sumitomo Blue Spot caliper to the mix, & a Nissin 1/2" master cylinder from a Honda CBR 125.

Martyn.
 
If you come up short, Hyde sells the disc on its own, you don’t have to buy the whole paraphernalia from him.
 
If you come up short, Hyde sells the disc on its own, you don’t have to buy the whole paraphernalia from him.
I've seen Suzuki Bandit discs modded to fit Triumph hubs but unsure of the process, although I'm fairly sure the offset and bore size is the same, maybe just bolt pattern to sort out.
 
I download one of the aftermarket disc maker catalogues, they have the hole pattern and offset in there for comparison. Galfer is one example.
 
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