Biking course takes place generally and the only height differences are on flyovers, roundabouts.
Bike course description and dangers are following:
From Tammemäe sandpit to the roundabout there is 0,3 km asphalt road, turn to the right towards Saue is also asphalt road.
Once at the Kanama intersection, when 7km has been completed, the intersection is passed by completing a right turn. For the biking course distance to match an extra lap is done at the first arrival to the intersection and then the course continues to towards Pärnu.
Danger may appear once a competitor rides down from the two level intersection and ends up on the second lane of the road, because traffic that comes from Saku direction and are heading to Pärnu direction are on the first lane and are increasing their speed rapidly.
8 laps are completed between Kanama intersection and Ääsmäe roundabout. To proceed to next lap a competitor needs to yield to vehicles that are on the roundabout and a competitor needs to move to the right side of the left lane. Danger may appear when vehicles that have right of way are passing by with faster speed – it is absolutely mandatory to show turning signs as early as possible.
Biking course between Ääsmäe and Kanama flyovers is straight and covered with asphalt. Riding must be done only on the right hand side from the sideline of the road. Crossing the line is allowed only when passing obstacles.
Reaching Kanama intersection the competitor has to ride below the flyover, turn right to the flyover, cross Tallinn-Pärnu road, make right turn again and head back to the new lap.
After completing 8 biking laps between Kanama and Ääsmäe, competitors head towards Keila – they don't turn down from Kanama intersection anymore but instead they continue straight forward. Measured from the intersection after 10 kilometers there is a right turn to Paldiski road and biking course ends in front of Keila Health Center - Keila Tervisekeskus.
Refreshment points are situated after every 20 km.
Biking race must be individual, without accompanying car.
Competition organizer offers technical help to the competitors.
It is allowed to use assistance when exchanging bike details, broken details must be exchanged with equal parts so that no advantage is gained by the exchanged part.
Competitor must follow traffic regulation rules.
Competitor must not practice drafting during the race.
Drafting zone is considered to be a rectangle around a competitor that is 3 meters wide and extends to 10 meters backwards from the competitors bikes back wheel. Front edge of the front wheel determines the front edge of the rectangles center line.
Competitors drafting zone must not overlap with other competitors drafting zone. One competitor can enter into another competitors drafting zone only during an overtake, it must be obvious that a competitor is passing another one. Overtake can take maximum 20 seconds.
If a competitor is being overtaken then it is his/her responsibility to exit the drafting zone either by exiting to the side or staying behing for more than 10 meters. Competitor has been overtaken once overtaker's front wheel has passed competitors front wheel.
It is not allowed to gain advantage by drafting from accompaning vehicles, TV and radio vehicles etc. Minimum distance between the competitor on the bike and vehicle is 35 meters.
An athlete may enter a bike draft zone in the following circumstances:
- for safety reasons;
- 100 metres before and after an aid station or transition area;
- at an acute turn.
Competitors bike needs to comply to the following rules:
- the frame will be no more than two (2) metres long, and seventy-five (75) centimetres wide will be permitted;
- the frame will measure at least 24 centimetres from the ground to the centre of the chain wheel axle;
- there will be a vertical line touching the front-most point of the saddle which will be no more than 5 centimetres in front of, and no more than 15 centimetres behind, a vertical line passing through the centre of the chain wheel axle, and an athlete must not have the capability of adjusting the saddle beyond these lines during competition;
- there will be no less than 54 centimetres and no more than 65 centimetres between a vertical line passing through the centre of the chain wheel axle and a vertical line through the centre of the front wheel axle;
- fairings are prohibited;
- brake levers must be mounted on the handlebar, not on the clip-on and may not face forward;
- gear shifters are allowed on the end of the clip-on handlebars;
- the front wheel must be of spoke construction, covers are allowed on the rear wheel only;
- handlebar ends must be plugged;
- there must be a brake on each wheel.
Competitor must wear a helmet that has been approved safe by official standards and testing commitee. Helmet must not have any malfunctions or injuries, modifications of the helmet are not permitted.
The helmet must be securely fastened at all times when the athlete isin possession of the bike, which means from the time they removetheir bike from the rack at the start of the bike leg, until after theyhave placed their bike on the rack at the finish of the bike leg.
Non-traditional or unusual bikes or equipment shall be illegal unless priorapproval has been granted from the Technical Delegate, prior to the start of the competition.
On biking segment the racing number of the competitor is fastened behind.
