Shimano disc brake mounting adapter SM-DBADT - ISMMAF203PPA

Fit a 203 mm disc safely with the genuine Shimano adapter

The Shimano SM-DBADT – ISMMAF203PPA disc brake mounting adapter allows a Post Mount brake caliper to be fitted to a Post Mount bracket so that a 203 mm brake disc can be used . As a genuine Shimano part, it guarantees precise caliper alignment and perfect compatibility with Shimano braking systems and numerous Post Mount-standard brakes.

Made from robust aluminium, this adapter ensures excellent rigidity whilst remaining lightweight. It is the ideal solution for increasing the brake disc diameter, thereby improving braking power, heat dissipation and endurance during long descents or demanding mountain biking and e-MTB rides.

Easy to fit, the ISMMAF203PPAmodel is designed for Post Mount to Post Mount (+43 mm) installations for use with a 203 mm disc, provided that the fork or frame is approved for this disc diameter.

Key features

• Shimano genuine adapter.
• Compatible with Post Mount to Post Mount (PM → PM).
• Allows fitting of a 203 mm disc.
• Lightweight and durable aluminium construction.
• Precise alignment of the brake caliper.
• Ideal for improving braking power and endurance.
• Shimano reference: ISMMAF203PPA.

Technical specifications

• Brand: Shimano
• Model: SM-DBADT
• Part number: ISMMAF203PPA
• Type: Disc brake caliper adapter
• Mounting: Post Mount → Post Mount (P/P)
• Disc compatibility: 203 mm
• Height adjustment: +43 mm
• Material: Aluminium
• Colour: Black
• Mounting bolts: Supplied depending on packaging.