Chinook 1-Bolt Rubber Base- US
The Chinook one bolt rubber flex-joint base is the most comfortable base offering the best shock absorption. The base plate does not separate as on the 2-bolt design so if you are interchanging various rigs you might want to consider that design. The base can be loosened for quick mast track adjustments even in the water. 1-bolt design offers alittle more fore/aft adjustment in the mast track than the 2-bolt design.