Product reviews:
Murphy
2025-07-04 iphone 11 Pro Max
ID Seatpost Shim 30.9mm post to 31.6mm 30.9 to 31.6 shim
30.9 to 31.6 shim
Michael
2025-07-04 iphone XS Max
31.6 Seat Tube @ Frame to 30.9 mm 30.9 to 31.6 shim
30.9 to 31.6 shim
Reducer Seatpost 31.6 30.9 Adapter 30.9 30.9 to 31.6 shim
30.9 to 31.6 shim
HYPER RIDE PROBLEMSOLVERS SHIM 30.9 TO 30.9 to 31.6 shim
30.9 to 31.6 shim