Cataract counterbalance shafts vs weighted handles

DIY oar counterbalancing, Page 3

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DIY oar counterbalancing

How to add internal counterbalance to Cataract oars

Cataract Counterweights - 4Corners Riversports

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Cataract SGG 9ft Counter Balanced Shaft with Rope Wrap & Stop – Cascade River Gear

Cataract Oar Blades Carbon Fiber Rafting Blades