AED109.00
Only 2 left in stock
The Shimano SM-MA-F203P/PA mount adapter lets you run a 203 mm rotor with a post-mount caliper on a frame or fork whose post mounts are made for 160 mm rotors.
It lifts the caliper by 43 mm — the step from 160 to 203 mm. A bigger rotor gives more braking power and better heat control, which is why e-bikes, enduro and downhill bikes run them on long descents.
Check these before you order
- Mounts: post-mount frame or fork (160 mm base) to post-mount caliper. Not for flat mount or IS mount.
- Rotor: 203 mm only — rotor sold separately.
- Check that your fork or frame maker allows a 203 mm rotor before fitting.
- Mounting bolts included.
Who it is for
- Riders upgrading to a 203 mm rotor for more stopping power
- E-bike, enduro and downhill set-ups
- Workshops converting a 160 mm post mount to 203 mm
Full specifications are listed in the Information tab.
Not published for this exact code on the pages we checked: weight and bolt torque. Use the torque printed in your caliper manual.
Questions people ask
Can I use it on the rear?
Shimano lists it as a front adapter that can also be used on the rear, as long as the rear mount is post mount for 160 mm and your frame allows 203 mm.
Does it work with flat mount brakes?
No — post mount only.
Are bolts included?
Yes, the mounting bolts come with the adapter.
What is the Shimano code?
ISMMAF203PPA.
Talk to us
| Weight | 0.10 kg |
|---|---|
| Dimensions | 12 × 8 × 3 cm |
| Brand | Shimano |
| Discipline | MTB |
| Product Type | Disc brake mount adapter |
| Model Code | SM-MA-F203P/PA |
| Rotor Size | 203 mm |
| Mount Type | Post mount to post mount |
| Base Mount | 160 mm post mount |
| Offset | +43 mm |
| Position | Front (rear possible) |
| Colour | Black |
| Hardware | Mounting bolts included |
| Manufacturer Code | ISMMAF203PPA |
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