The all new Chinook Sailing 1-Bolt Pro Flex Mast Base Euro-Pin EX features all of the advantages of a tendon base with the added features of a mechanical base. 

• Same shock absorption as standard Tendon bases for less stress on board, & sailor.
• Uses standard Chinook Tendon for easy serviceability.
• Free moving Mechanical hinge provides ease of attachment for larger or wider Foil boards, Formula, & Long boards etc.
• Small boards less likely to flip over during water starts in high wind & wave conditions.
• Mechanical hinge eliminates an estimated 75-80% of fatigue which occurs due to constant bending of the Tendon.
• Made in cast 316 Stainless steel like our other Europin bases so it will be extremely durable & have the distinctive look of polished steel.
• Available in 2 Bolt and US Base Cup versions!