Topeak Cage Mount for seatpost or handlebar Day Packs Can I use a shim

Can I use a shim to adapt to a non-round or "aero" seatpost

then both of our seatposts are not compatible with your bicycle

Built-in speed sleeve adds speed with efficiency

Labyrinth seals prevent bearing contamination

Great for post-surf and swimming sessions all year round

Topeak Cage Mount for seatpost or handlebar Day Packs Can I use a shimCageMount is a fixer for attaching an additional water bottle cage to the handlebar or seatpost. Provides convenient access to an extra water bottle during extended commutes or when cycling in warmer weather. Allows bottle cage to be mounted on handlebars Allows bottle cage to be mounted on seatpost CLAMP Fits 22 38 mm (shims included) MATERIAL Engineering grade polymer Steel MOUNT Handlebar Seatpost SIZE 7. 5 x 7 x 2. 7 cm 2. 8 x 2. 8 x 1. 1 WEIGHT