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K75C rear 18" drum to 17" disc rear
- Thread starter jawjaboy
- Start date
Frank, it is a fairly straight forward conversion.
You will need:
A disc brake final drive, rotor, and caliper with pads. Be aware of the condition of the splines. Worn final drive splines will wear out the driveshaft splines quicker.
A 17” rear wheel and tire.
A right side peg plate with disc brake pedal, brake switch, master cylinder, rear reservoir, and hose.
Everything is just a bolt on. There are a few different rear gear ratios. The K100 ratios are taller. Ideally, you want the lower 32:10 ratio (stamped on the top of the final drive just behind the swingarm parting line) for better acceleration and hill climbing with the lower horsepower 750cc motor.
Ballpark prices on fleabay are around $500 (minus the tire).
Since you have a donor, you are good to go, as long as the condition is good. If the RT is an ABS bike, different brake lines would be needed to go straight from the rear master cylinder straight to the rear caliper.
I had a C for a short period, that had been converted, that I flipped. WAY better choice than trying to source drum brake parts for a repair!
You will need:
A disc brake final drive, rotor, and caliper with pads. Be aware of the condition of the splines. Worn final drive splines will wear out the driveshaft splines quicker.
A 17” rear wheel and tire.
A right side peg plate with disc brake pedal, brake switch, master cylinder, rear reservoir, and hose.
Everything is just a bolt on. There are a few different rear gear ratios. The K100 ratios are taller. Ideally, you want the lower 32:10 ratio (stamped on the top of the final drive just behind the swingarm parting line) for better acceleration and hill climbing with the lower horsepower 750cc motor.
Ballpark prices on fleabay are around $500 (minus the tire).
Since you have a donor, you are good to go, as long as the condition is good. If the RT is an ABS bike, different brake lines would be needed to go straight from the rear master cylinder straight to the rear caliper.
I had a C for a short period, that had been converted, that I flipped. WAY better choice than trying to source drum brake parts for a repair!
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