Replace worn or damaged brake discs with a version that fits exactly with the wheel, brake caliper, and brake pads
The brake disc, together with the brake pads and caliper, forms the friction surface of the braking system. During braking, a lot of heat is generated, and the disc must remain flat, dimensionally accurate, and properly aligned. Wear, deformation, or deep grooves can affect braking performance and the feel at the lever.
In this collection, you will find brake discs for maintenance, restoration, and sporty upgrades. The correct disc is determined by diameter, thickness, offset, bolt circle, hub diameter, and mounting holes.
A brake disc that looks visually similar does not automatically fit the same wheel. Always check the exact part number and the specified motorcycle models and production years.
A fixed brake disc consists of a single construction where the braking surface is directly connected to the mounting carrier. This type is commonly used on the rear and for lighter applications.
A floating brake disc has a separate outer ring connected to the inner carrier via buttons. This construction allows the outer ring limited movement to accommodate expansion caused by heat.
A wave brake disc has a wavy outer edge. Besides the sporty appearance, the shape can influence weight, cooling, and keeping the braking surface clean. The exact properties vary by manufacturer and design.
Choose a wave design only when it has been developed as a technically suitable replacement for your motorcycle. The outer shape must never cause contact with the brake caliper, brake pads, or other parts.
Every brake disc has a minimum allowable thickness. Once this limit is reached, the disc must be replaced. Also check for deep grooves, blue heat spots, cracks, and lateral runout.
When fitting dual front brakes, preferably install two identical and evenly worn discs. Combining different types or discs with significantly different wear conditions can affect brake balance.
When installing a new brake disc, matching new brake pads are usually fitted as well. Old pads are worn to the surface of the previous disc and may make uneven contact.
Clean new discs before use and tighten the mounting bolts in a crisscross pattern to the prescribed torque. Bed in new discs and pads carefully according to the manufacturer's instructions.
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