11,90 €
The Shimano SM-MA-F203mmP/PM is an aluminum disc brake adapter designed to fit a Post Mount brake caliper to a Post Mount fork or frame, enabling the use of a 203mm rotor. Its rigid and precise construction ensures exact caliper alignment, even pad wear, and reliable braking performance under heavy loads.
Adapts a Post Mount (PM) fork or frame to fit a 203mm brake rotor (typically from a 160mm native mount).
Fully compatible with standard Post Mount (PM) brake calipers.
Constructed from lightweight and highly durable aluminum for structural integrity.
Facilitates increased braking power and better heat management by accommodating larger rotors.
Precisely machined to ensure perfect alignment between the brake caliper and the rotor.
Transfers heavy braking forces safely to the fork or frame.
Mounting type: Post Mount 180 mm (PM7)
Size: 203 mm
Use: Front and rear brakes
The Shimano SM-MA-F203P/P is a purpose-built mechanical disc brake adapter engineered to correctly position the brake caliper relative to the hub axle when upgrading to larger rotors. This specific model is designed exclusively for bicycle forks and frames featuring a Post Mount (PM) standard, allowing the straightforward installation of a 203-millimeter brake rotor in conjunction with a Post Mount brake caliper. Most commonly, this adapter is utilized to step up a native 160mm mount to accommodate the 203mm rotor. Utilizing a larger rotor is essential for disciplines that demand increased stopping power and superior heat dissipation, such as enduro, downhill riding, or e-biking, where the braking system is subjected to high thermal and mechanical stress.
Constructed from high-quality, lightweight aluminum, the adapter provides the necessary torsional stiffness and durability to withstand extreme braking forces. This material choice ensures robust performance without adding unnecessary unsprung weight to the bicycle. Shimano's precise machining guarantees that the brake caliper aligns perfectly parallel with the rotor. Exact alignment is critical for preventing uneven brake pad wear, avoiding brake rub, and eliminating unwanted vibration and noise during operation. For optimal safety and functionality, the adapter must be installed using the correct length mounting bolts and appropriate concavo-convex washers. When properly mounted, this component safely transfers the intense leverage generated during heavy braking directly into the structural components of the bicycle.
Key Features:
Adapts a Post Mount (PM) fork or frame to fit a 203mm brake rotor (typically from a 160mm native mount).
Fully compatible with standard Post Mount (PM) brake calipers.
Constructed from lightweight and highly durable aluminum for structural integrity.
Facilitates increased braking power and better heat management by accommodating larger rotors.
Precisely machined to ensure perfect alignment between the brake caliper and the rotor.
Transfers heavy braking forces safely to the fork or frame.
