Brake hose kit for the Honda CB450/CB500 and CB550 models from the 70's. This kit fits the stock handlebars (approx. 3 - 4.5" rise) for the models listed below. We recommend measuring your upper line to be sure it will reach your bars, it is common to have non stock handlebars.
Note: The lower hose in this kit is 1.5" longer than the original hose on some model years. It can work on the 1977-1978 CB550K but measure your upper hose length first.
Kit Contains:
Upper Brake Hose - 15.5" - Connects between the master cylinder and the 3 way joint under the headlight (the joint with the brake switch on it).
Lower Brake Hose - 14.5" - (threading 10mm x 1.25mm) Connects between the 3 way joint under the headlight and the metal hose that attaches to the front brake caliper.
Brake Pipe - Hard-line that connects between the lower brake hose and the front brake caliper.
Replaces Part Numbers: 45126-300-003 (upper), 45125-300-003, 445125-379-003, 45125-390-003 (lower), 45128-323-020 (brake pipe)
Fits Honda:
CB450K Super Sport - 1972-1974
CB500K - 1971-1973
CB500T - 1975-1976
CB550F Super Sport - 1975-1977
CB550K - 1974-1976
CB550K - 1977-1978 (With slightly lower handlebars - check upper hose length)
On Jun 22, 2026 at 03:45:01 PDT, seller added the following information: