Castelli Core Seamless Base Layer Long Sleeve - Black Front Derailleur Parts and this adaptor bridges the

and this adaptor bridges the gap -- letting riders run a braze-on Di2 front derailleur on frames that would otherwise require a clamp-on unit

It is a small

it delivers smooth

making it a popular choice for weight-conscious road and gravel builds

The Sock Guy SGX Jill is built specifically for women cyclists who want a performance sock with as much personality as their riding

Castelli Core Seamless Base Layer Long Sleeve - Black Front Derailleur Parts and this adaptor bridges theWhy Does the Castelli Core Seamless Base Layer Long Sleeve Belong Under Every Jersey? The Castelli Core Seamless Base Layer Long Sleeve in Black is the foundation layer built for year round road and gravel riding in cooler conditions. Seamless construction eliminates seam chafing at the shoulders, underarms, and torso that traditional cut and sew base layers develop over long rides in an aggressive position, and the snug, body mapped fit sits flat