Joined: Jul 2002
Posts: 40,863
Likes: 3,115
From: Sacramento, California, USA
Bikes: Specialized Tarmac, Canyon Exceed, Specialized Transition, Ellsworth Roots, Ridley Excalibur
I guarantee you that no one on BF is maxing out his effort on the bike such that a weight vest is necessary to add intensity. It probably won't hurt you, but it really isn't necessary.