UIPM Obstacle 2. Big wheel

UIPM Obstacle 2. Big wheel
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UIPM Obstacle 2. Big wheel
UIPM Obstacle 2. Big wheel
UIPM Obstacle 2. Big wheel
Jump from the previous obstacle or platform, grasping
the wheel and swinging forward. Touching the ground
between the platforms (or start/finish lines) is forbidden.
Lateral elements spacing……………………………………… 180cm
Support bar at ………………………………………………………..170cm
Wheel diameter ………………………………………………….. Ø160cm
Wheel height (lowest part) ……………………. 230cm (+/-5cm)
Wheel spoke diameter ………………………………………………3cm
Bar wall thickness (steel) …………………………………………..1mm
Wheel wall thickness (6082 T6 Aluminium) ………….. 2mm
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What is UIPM Obstacle?

Obstacle is a brand new feature of our sports portfolio and will soon be unveiled as a discipline of Modern Pentathlon and a standalone UIPM Sport.

Obstacle was formally integrated into Modern Pentathlon by the 72nd UIPM Congress in November 2022, having been selected by the New 5th Discipline Working Group as the most suitable replacement for Riding after the Paris 2024 Olympic Games.

The sport was the overwhelming favourite of more than 60 proposed to propel Modern Pentathlon into a new era and make it one of the most exciting, accessible and popular sports in the Olympic movement.

The term ‘Obstacle’ encompasses various types of obstacle racing across the categories of Ninja, OCR and Adventure Racing.


This section contains the general course regulations for various events. No matter the level of the event
or the flexibility to be applied to its organisation, the course set-up will always consist of eight obstacles
over a 60m-70m distance for both individual and relay competitions.
The length of the course is a horizontal distance measured along the centreline of a lane from the
vertical plane of the start line to the vertical plane of the finish buzzer centreline, with the athletes
competing in two lanes.
The course can be set on a straight line, curve, or “u”/ “v” shape. The examples shown on the figures
above mentioned refers to a straight-line course.

In the UIPM Pentathlon Junior World Championships, six of the eight obstacles on the course are fixed
by UIPM, while the competition Local Organising Committee (LOC) can select the other two obstacles.
The configuration of the course must be according to Table 1. Obstacles 3 and 7 in the first column
shall be chosen by the LOC from the three options available in the adjacent columns. The LOC choices
must be communicated in the competition invitation letter.
In the UIPM Pentathlon Junior World Championships, platforms must be installed before and after each
obstacle according to Figure 1 with mattresses covering all areas where a fall from height can happen.

The course must be set on an elevated structure. The height of the running surface must be constant
with a minimum of 40cm and a maximum of 100cm from the ground. Structural components may be
wider and higher than those described in section 3 of this catalogue to adapt the construction of the
obstacles to the elevated structure. Regardless, the obstacle characteristics described in each section
will remain the same, while maintaining standard obstacle functionality.

In Figure 1 a simplified view of the course is presented with obstacle 3 choice “over-under-through”
and obstacle 7 choice “swinging globes”.
Platforms must be installed before and after each obstacle according to Figure 2 with mattresses
covering all areas where a fall from height can happen.
With the exception of the UIPM Pentathlon Junior World Championships, all Category A, B and C
competition courses can be built with obstacles set directly on ground level.
In Figure 2 a simplified view of the course is presented with obstacle 3 choice “over-under-through”
and obstacle 5 choice “balance beam”.
Other competitions
LOCs can have more flexibility in Category B and C competitions for U17, U19 and Junior age groups
(beneath UIPM World Championships level). But where this flexibility is applied, as explained below,
no Pentathlon World Ranking (PWR) points will be granted.
Changing the order of the obstacles is allowed, but modifying their dimensions is not permitted,
to ensure the consistency and safety of the competition. Obstacles not listed in this catalogue
cannot be used. Using materials other than trusses will be allowed to build structural components
provided the materials and construction methods meet all safety requirements presented
in this catalogue.
Instead of platforms before and after each obstacle, a line can be marked on the ground (or on the
safety mattress) clearly indicating the beginning and the finish of each obstacle.
For national competitions, LOCs are given the flexibility to make changes to the obstacle course design.
However, the basic structure of the course – eight obstacles and 60/70m in length – must remain
consistent. It is important to stress that any obstacle with a structural element must be built according
to a qualified professional-approved design. The LOC must always be sure the course is designed and
built for minimum risk1 and its level of difficulty is adequate for competitors.
Obstacles classification
The obstacles presented in the courses in section 1 were divided into five simplified categories. These
categories were determined。
The ability to exert maximum force through a move as quickly as possible. The two components of
power are strength and speed.
Postural control both moving and stationary.
The ability to perform sudden movements in quick succession and in opposite directions.
The ability to execute smooth, accurate, controlled movements, including hand-eye
coordination and gross motor skills.
•Strength (grip strength)
The force applied by the hand to pull on or suspend from objects; a specific part of hand strength.
Table 3 provides the list and classification of obstacles by categories, as well as the specific body
segment involved in their successful completion.
Structural components
a) UIPM competitions
The architecture of obstacles is an essential part of the course to maintain long-term consistency across
competitions and ensure the safety of athletes. The technical specifications for the obstacles, including
their dimensions and structural integrity, are outlined in section 3.
In UIPM competitions, the structures used are of the truss type, with a square cross-section.
The dimensions for these structures vary depending on course characteristics and competition level.
For the UIPM Pentathlon Junior World Championships, the trusses square cross-section shall measure
40cm x 40cm and 2mm wall thickness. This provides more rigidity and stability to accommodate the
increased obstacle heights. For other UIPM competitions, the trusses square cross-section dimensions
can be set at 30cm x 30cm. These dimensions are mandatory to ensure the safety of the course.
The standardised truss structure to be used in UIPM events is made in 6082 Aluminum alloy with TUV
Homologation. It is chosen for its high strength-to-weight ratio, durability, and ease of assembly,
making it the ideal choice for temporary structures that need to be set up and taken down frequently.
Additionally, the square cross-section allows for a greater degree of flexibility in terms of layout.
To ensure safety and stability of structural components of rings, wheels, monkey bars, swinging globes
and tilting ladders, in UIPM events only 600cm long trusses will be accepted. Therefore, two segments of
300cm each will not be allowed.
When building obstacles using trusses, all load calculations must follow the norm UN-ENV 1999-1-1
(Eurocode 9).
b) Other competitions
A variety of materials such as steel trusses, scaffolds and wood, among others, can be considered when
constructing obstacles. Using simpler and more efficient construction methods, such as prefabrication or
modular construction, can reduce costs while maintaining safety standards.
Using alternative materials or methods should be done under the guidance of a qualified professional
to ensure the safety and integrity of the structure under repeated loading conditions. Athlete safety should
be the top priority when constructing any structure, and it is important that all used materials
and methods meet safety standards.
10 11
c) Platforms
The platforms described in this catalogue are designed to mitigate the impact load on the athletes and
make the course faster and easier to judge for referees.
Platforms can be constructed using materials such as wood, metal and plastic and should always be
covered with a firm mattress to ensure a non-slip surface and provide a
secure footing for take-off and landing.
Maintaining the platforms properly is crucial to ensure the surface remains smooth and free of hazards
throughout the competition.
d) Safety mattresses
Correct positioning of the safety mats is essential for the safety and security of participants. The mattresses
should be placed in a manner that minimizes the risk of injury to athletes while they are traversing the
obstacle course.
Thick mats must fully cover the surface under the obstacle and extend beyond its boundaries by a minimum
of 100cm on each side, to provide impact attenuation for the athletes in case of a fall from height. Thin, firm
mattresses should be placed on the landing platforms, providing an extra layer of protection for the athletes
and a softer landing surface.
Thick mattresses should not have space between them and adjacent structures (e.g., trusses). Gaps can
create a tripping or entrapment hazard and increase the risk of injury.
The mats must be designed with a high degree of slip resistance (non-slip surface) to provide secure
footing. The core of the mat should be composed of a high-quality composite foam with minimum density
requirements presented below. It reduces the risk of injury while increasing the athlete’s ability to self
regulate and stabilise their landing. Mattresses should be frequently examined for signs of damage or wear
and, where appropriate, repaired or replaced.
Two thicknesses of mats shall be used for this purpose:
Thick mat must cover the entire surface under each obstacle and extend beyond the boundaries of
the obstacle by at least 100cm on each side. The mat should be at least 20cm thick – the same as the
adjacent platforms – with a recommended density of RG25 (25kg/m3).
Thin mat should be placed on the landing platforms to enable a softer landing. The mat should be 2cm
thick with a recommended density of RG20 (20kg/m3).
Each obstacle includes a start line or take-off platform and a finish line or landing platform so it can be
considered successfully completed.
The conditions for correct completion of an obstacle are as follows:
a. Start line: The athlete must start the obstacle with both feet before the line marked on the ground.
Touching the line with any part of the body is considered a failure.
b. Finish line: The athlete must land with both feet beyond the line marked on the ground or mattresses
under the obstacle. Touching the line with any part of the body is considered a failure. Falling or stepping
backwards on or before the line is considered a failure.
c. Take-off platform: The athlete must start the obstacle by taking off from the platform. Falling or
stepping forward off the platform is considered a failure.
d. Landing platform: The athlete must land only on the platform. Falling or stepping backwards off the
platform is considered a failure.
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  • 1.  Why your factory provide not only  lighting truss, but also  flight case, portable stage, pipe and drape ,ect ?


    Actually, the reason is very simple. All our product need the similar raw material , like plywood, aluminum alloy tube. We just need buy the professional machines, hire the skillful workers and enhance the R& D Team. We hope we could provide “ One-Stop service” for our clients.

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    For rack case, we offer 2U, 4U, 6U, 8U and other models of “U” cases. “U” here is a unit referring to inner height of the rack case . Usually, 1 U equals 1.75” (4.45cm).


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    The payment term is T/T, Western Union.

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