Brake Lines, Hoses & Fittings

About Brake Lines, Hoses & Fittings

Brake lines carry fluid under pressure from the master cylinder to the caliper, so a swollen, cracked or leaking line is a safety problem and not only a repair job.

This category has two listings, both GBrakes Wraith front brake kits, one in 12.5 inch and one in 13 inch. Read each listing for what the kit includes and which machine it is made for, and check that your wheels have the clearance a larger brake needs. Replacement lines come in rubber and braided styles, and the line, its fittings and the caliper connection must all match. Whatever you fit, bleed the brake afterward and test it at low speed before you ride.

The brand here is GBrakes. For related parts, see Brake Master Cylinders, Brake Calipers & Brackets and Brake Disc Rotors. The whole group is Brakes & Brake Parts.

FAQs on brake lines and hoses

When should a brake line or hose be replaced?

Replace it if it is cracked, bulging, rubbed through or leaking at a fitting, and after a crash that may have damaged it. A lever or pedal that has become soft, without another cause, can also point to a swollen hose.

What is the difference between rubber and braided brake lines?

Rubber lines are the usual factory type. Braided lines wrap a steel braid around an inner liner so the line swells less under pressure, which can give a firmer feel. Either must fit the machine and be routed so it cannot chafe.

Do I need to bleed the brakes after replacing a line?

Yes. Opening the hydraulic system lets air in, so the brake must be bled before riding. Use the fluid type marked on the reservoir or in the manual, and test the brake at low speed to confirm it grips firmly.

What do the GBrakes Wraith kits in this category cover?

The two listings are front brake kits, sized 12.5 inch and 13 inch. Read each listing for the parts included and the machines it fits, and check that your wheels clear the larger brake before ordering.