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J. Rew
Reviewed in the United States on January 20, 2025
This is a fine adapter, but it didn't work for my 203mm rotors. My DVO fork has posts for 160mm rotors and needs a 44mm adapter to run 203mm rotors. This Shimano adapter is only about 20mm and doesn't reach far enough. It is made for adapting 180mm to 203mm, not 160mm to 203mm. I wish the product description and/or the part number would indicate what posts this adapter is made for, but only the instruction manual makes that distinction. Shimano's SMMAF203PP (without the "90") adapter uses the same instruction manual which specifies 180mm. It can be hard for find the correct brake mounting adapter, so Amazon sellers and manufacturers need to step it up by providing the necessary technical details. Otherwise this Shimano adapter is great and includes drilled bolts and metal wire so you can mount the calipers race-style. Although it doesn't say, it looks like this "90" adapter is XTR/Dura-Ace series.
FRANCO
Reviewed in Italy on August 29, 2024
Ordinato x 160 a 203 ma e solo x 160 a 180 ..completo con vite ma senza blocco vite solo con un filo d'acciaio x bloccare ...consiglio x fissare bene blocco vite blue liquido
Excelente product, it covered my whole ebike
Reviewed in the United States on June 25, 2024
Now I’m running 203mm shimano rotors just fine! It is awesome!
JSUN
Reviewed in the United States on March 8, 2024
Product is as described. Arrived in genuine Shimano packaging. Both my fork and frame are spec'd for 180mm post mount and I run Shimano m7100 brakes with 203mm rotors, so a pair worked perfectly. I originally tried buying some "Amazon's Choice" cheapies that I found doing a search for "180-203mm shimano post mount adapter" but they didnt match, so don't waste your time and money doing that! Ride on!
Ivan
Reviewed in the United States on December 3, 2024
Had a spare set of these that I used on a new build which used SRAM brakes. It set them about 95% of the way, which was expected. Just wish all these manufacturers would agree on standard sizing here instead of being a few mm off.
Lori Barbin
Reviewed in the United States on October 30, 2024
Used on my Rockshox Revelation 180 mount to use with a 203 rotor. Worked great!!
Nelutu
Reviewed in Germany on August 31, 2023
Adapter wie beschrieben, alles ok.
Customer
Reviewed in the United States on June 30, 2023
Item as described. It fits properly.
spoogue
Reviewed in France on December 19, 2023
Acheté pour un montage arrière top
Duniesky Valle
Reviewed in the United States on December 17, 2023
This is the one front or Rear 180 to 203.
Jose
Reviewed in the United States on October 8, 2022
Perfect adapter to go from 180mm rotor to 203mm rotor dimensions.
Andrés Rodríguez
Reviewed in Mexico on April 13, 2022
Este adaptador lo he usado para colocar discos de freno de 203mm en una suspención FOX Factory 36 2021.No necesitas espaciadores ni nada, solo lo colocas y ya esta listo para el disco de 203mm. Viene con sus tornillos y rondanas. Prové algunos otros de menor calidad y fue una perdida de tiempo, este es el bueno!
R. L. Capilla
Reviewed in Canada on February 25, 2021
Took a while to be delivered but transaction was smooth and item was as described.
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