Master cylinder compatibility

[Joestrato]

Hello everyone. Suzuki gs 750b owner here. I was wanting to rebuild my front master cylinder but finding a rebuild kit seems to be a rare occurrence. My question is, would I be better off just looking for a different Master cylinder from another year? Also does anyone know what other master cylinder would be compatible? Thanks
in advance

[Nessism]

Masters are fairly universal, just as long as you get the correct piston diameter. Typically, single disc masters are 14mm and dual are 5/8". Double checking the factory manual should confirm that, though.

[rphillips]

I never realized they were that close, 14mm to 15.8 mm. Would that even make a noticeable difference? I never tried it.

[bitzz]

https://www.vintagebrake.com/mastercylinder.htm

[salty_monk]

Yep it makes a difference..... EX650 is a good choice for a dual. KLR650 is 14mm.