1973 air-cooled RD350 disc rotor aftermarket

[2t Fan]

https://www.ebay.com/itm/295789491795

can we use it on air-cooled 1973 RD350 ?

Any experience pls share

[m in sc]

we tried. doesn't fit. offset is wrong and the rivets, even after modifying the caliper doesn't clear. also, if i remember correctly the surface area for th erotor isn't big enough to make full pad contact. don't waste your money or time.

[2t Fan]

thanks a lot