Tunnel Trekking Tent – 4-person – MT900 Ultralight

Our team of mountain trekking enthusiasts has designed this pre-assembled tunnel tent for 4 people looking for habitability and a large living space.The MT 900 UL 4-person tent is a 3-season model that offers a remarkable weight/comfort ratio. It is easy to assemble, well ventilated and has 7 storage pockets in the chamber.

Weight

Total weight 3.6 kg
Separable parts to help transportation.
Flysheet 1442 g
Bedroom 864 g
Pole kit 996 g
Pegs (15 pieces) 150 g
Guy ropes (10 pieces) 40 g
Bags 94 g + 8 g
Repair kit (ferrule) 14 g
To protect your product and increase your protection from the sun and bad weather, you can complement your MT900 4P tent with the groundsheet with reference: 8732943.
The weight, volumes & sizes may vary slightly owing to production tolerances.

Size and living space

Length of the room 215 cm
Width 230 cm at the head and 210 cm at the feet
Height of the room 122 cm at the highest point

The very large apse (storage/living space in front of the room) is 205cm deep and 240cm wide, i.e. almost 5 sqm, makes it possible to sit down with 4 people or to store your equipment in a sheltered place (backpacks, shoes, bicycles, etc.).
7 pockets in the bedroom. Washing line loops.

Architecture, tent poles and tent pegs

The 3 poles form a non-self-supporting tunnel. This structure makes for a lightweight tent that is strong and quick to pitch but needs to be fixed to the ground to stay in place

Aluminium poles 7001 Ø 10.2 mm.

The stakes, made of 7075 T6 aluminium, have a head shape (called “anvil”) which makes them very strong. 10g/stake. They are non-anodised for a limited environmental impact.

Pitching/striking

Quick pitching
As the canopy and chamber are pre-assembled, simply slide the poles into the sleeves of the canopy and tension them.
It is also quick to strike.
To store the tent in its cover, simply fold the tent over itself to about the width of the cover, fold the poles into a bundle and place them on the chamber or flysheet, then roll the whole thing up compactly and slip it into the cover.

Waterproofing

Forclaz tents are laboratory-tested: pitched tent, 200 litres/sqm/hour (3 hours, equivalent to a tropical storm). They are also tested in the field by a sample user group.
20 denier polyester (PES) flysheet and 40D polyamide (PA) groundsheet have a polyurethane coating (inside) and silicone (exterior).
Seams taped with heat-sealed strips.
Multi-component bedroom combining breathability, wind protection and prevents condensation

Wind resistance

We test all our tents in a wind tunnel on a turntable where we can expose each side of the tent to the wind.
To test its wind resistance, the tent must be properly pitched, taut but not stretched, with all the guy ropes in position around the tent. It should remain habitable at wind speeds of 70km/h, measured near ground level.

Our tents are certified by the CSTB independent laboratory in Nantes.

Ventilation and condensation prevention

Bedroom with mosquito screen for ventilation and water-repellent fabric to protect from condensation and draughts. Large vent at front of tent and additional vent at feet end.
To reduce condensation inside your tent, it must be properly pitched, with the fabric kept taut without being over-stretched. Vents and good air flow will help reduce humidity inside your tent.
The back of the flysheet lifts up for better ventilation.

Seasons

3-season tent: your tent will protect you from the harsh weather conditions you can encounter in the spring, summer or autumn. It will withstand light snowfall but is not designed to withstand heavy loads that would weigh on the structure.
In case of snow, remember to shake your tent regularly in order to bring down any snow that has accumulated to avoid putting too much weight on the structure of your tent.

Environmental approach

Textile dyeing requires a lot of water but also produces waste water from the dye baths.
To reduce this impact on the environment, we have chosen a dyeing method called “two-tone” for the grey fabrics in the interior room, which consists of dyeing only one thread in two. This dyed yarn is also made from a bulk dyeing process which incorporates the colour pigments from the yarn manufacturing phase onwards.
This process reduces the CO2 emissions of this product.

Repairs and After-sales service

As designers, we care about the durability of our products, which is why all our tents are designed to be repairable.
For this model, you will find in spare parts:
– the double canopy (ref 8739746)
– the inner chamber (ref 8739740)
– poles (ref 8739748)

Information at the workshop of your Decathlon store or on our website

Durability

Your tent is designed for touring bivouacs, not for static day use.
We recommend that you avoid leaving it in the sun as the ultra-light fabrics can be sensitive to UV light, that damages them.