Description
Chinook Aluminum Short SDM US-Cup Base Extension
The new Six Pin adjusting collar and anodized logo/index markings are some of the unique and innovative features that make these the most popular extensions on the market. Standard with the proven US Power-Haul pulley and cleat system and 2 cm adjustment increments.
Adds maximum of 12cm to mast length
Standard Diameter
US Basecup
Large brass pulleys for increased leverage
Extension Lacing
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