646 HC

Hydrosports Ribs take our design and production very seriously. Due to the ever increasing demand for hard working durable ribs, Hydrosport now offer our 646 metre with a larger tube diameter 55cm and a deeper freeboard. 


The 646 HC has fantastic sea keeping qualities coupled with pinpoint handling and performance. Paired with Suzuki Marine our rigging reduces any need for on deck cables.  All rigging cables and wires are secured in a high strength duct manufactured under the non-slip deck. Having under floor cabling reduces the risk for trip hazards and damage to vital rigging components.


We have been able to keep the hull weight to a minimum by concentrating on structure strength and the best materials available on the market today.  The massive advantage to our weight saving, means our customers are able to choose a smaller engine giving the performance of larger outboards.


We offer a large and varied range of layout options to suite all individual requirements

Hydrosport only use Orca Hypalon material with a large D fendering, handle, life lines and wear patches.



  • LOA: 6.46 Metres
  • Beam: 2.49 metres
  • Internal beam: 1.54 metres
  • Tube diameter: 0.55 metres
  • Weight: from 550kg
  • Passengers: 12
  • Recomended engine: 90- 150 hp
  • Top speed: 36-50 knots with recomended engine
  • Fuel capacity: 170 litres
  • Autonomy: >250nm
  • Hull type: Warped 24º V @ transom, single stepped VFi

Standard Features


  • Full Orca Hypalon material
  • Medium V Stepped performance hull
  • Anti slip deck surface
  • 170 litre built in fuel tank with external deck filler
  • Large bow locker
  • Hard rubbing strake
  • Heavy duty D fendering
  • Larger 55cm Tubes

We are located at:


Dart Business Park
Ash Marine




Contact us today!

If you have any queries or wish to make an appointment, please contact us:



+44 1392 877800 SALES

+44 1392 876654 DESIGN



Or use our contact form.

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