Size of your balls might impact the size of your shorts which will have a direct impact on cycling comfort and could make or break your race season. FTP is far less important than an accurate ball sizing.
Also saddle choice. Woe is mine if I sprint out the saddle with a cutout.
@Acliff started
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Size of your balls might impact the size of your shorts which will have a direct impact on cycling comfort and could make or break your race season. FTP is far less important than an accurate ball sizing.