Complex sentence: Both F & K models had a drum rear brake and a single front disc brake, although each fork slider had a bracket for a brake caliper, and a second front disc brake could subsequently be fitted (using genuine Honda parts) by owners.
Split into simpler sentences: Both F & K models had a drum rear brake and a single front disc brake, although each fork slider had a bracket for a brake caliper. A second front disc brake could subsequently be fitted (using genuine Honda parts) by owners.