Model Range / Humber Assault Pro 400-550

Humber Assault Pro 400-550 Humber Assault Pro 400-550 Humber Assault Pro 400-550 Humber Assault Pro 400-550

 Available from 4.0m to 5.5m (2.0m beam)

A highly capable Deep V High Performance RIB, developed as an all-rounder this versatile craft has exceptional sea keeping abilities.

Built to a tough commercial construction, large diameter tapering buoyancy tubes, combined with a tough, fast to plane, fuel efficient Deep V hull , offers responsive handling, exceptional stability and a smooth dry ride.

Fulfilling the requirements of many professional organisations, Thousands of this model type have been supplied to Water sport centres , sailing clubs, rescue, patrol, diving,  commercial  and recreational users operating around the world.



The Assault model range is our most competitively priced making them perfect to meet your potential budget constraints. The Assault series is a faultless choice for those looking at the smaller end of the size scale. Not only that but you will save money on fuel consumption due to the hull performance. An all-round money saver.

High Strength

All of our boats are built to a commercial strength and this includes the Assault series. Widely used for all applications, the Assault offers fast responsive steering in rough sea states and is used by countless rescue and sailing organisations.

Make it your own

With numerous colour options and additional features. Our expert team will make sure that you have the Assault that you require. So, why not customise it to give it the look and functionality that you need.

Easy to store and launch

The Assault is easy to launch, can be towed by your average car and fits in most garages making it perfect for those with limited storage facilities. The Assault range is also a lower weight than the majority of our other models.

Tried and Tested Hull

Our Deep V hull design is unrivalled which in turn offers a ride like no other. Come for a test drive and compare it to others on the market. You’ll be pleasantly surprised with what we have to offer. There’s a reason that our boats are seen as high performance ribs and that partially comes down to the hull design.

A boat for all experience ranges

The hull design of the boat is very forgiving and will make up for mistakes made by the driver. Easy to navigate and control, it doesn’t matter if you’re a newbie or a seasoned veteran of the sea, the Assault is user friendly and will still overcome any obstacle.

Test Drive and Advice

Contact your local Humber dealer for more information and/or arrange a test drive. We want to make you feel at ease and want you to see that we can walk the walk! Start your Humber rib adventure here.


  • Proven unique deep ‘V’ high performance hull with tapered keel to increase lift and acceleration
  • ‘Orca’ Hypalon 1300gms tapered inflation collar designed & produced in house
  • Over pressure relief valve for additional safety
  • Outer inflation collar flat rubbing strake protection
  • Forward and Aft recovery grab handles
  • External life lines mounted on molded rubber blocks
  • Raised bow stowage locker, fully drainable with twin handle access hatch
  • Anti slip deck finish with rear drain well and transom ventura drainer
  • External bow winch eye
  • Twin transom towing eyes
  • Owner’s Instruction Manual, Emergency Repair Kit & Inflation Pump
  • Upholstery available in a range of coordinated colours
  • Single or two tone inflation collar options, available in a wide colour choice

Ribs for Sale @ Ribworld

Whatever your requirement, Ribworld can find a rigid inflatable for you, with or without engines, new ribs or used ribs we have an extensive range offering the most competitive prices....