RTM Kayaks Keel Trolley This transport cart fits the RTM Rytmo, Abaco 3.60, Abaco 4.20 and Makao. This transport trolley is delivered unassembled in a cardboard packaging. Assembly and disassembly are quick and easy. This Keel Trolley can remain positioned during paddling. Features: The trolley kit includes: 1 X Stainless Steel Axel 2 X Pu inflatable Wheels 2 X Lynch Pin Clips 2 X Covers for Lynch Pins Assembly instructions: Please read the operating manual. The keel of these kayaks is already drilled, so we insert the pin. Then the two wheels are arranged on either side. Two pins hold the wheels.