UCI Regulations – The following information was pulled from the UCI cycling regulations book in March of 2007.
Although it is believed to be accurate, MNJRC cannot guarantee its accuracy
Although it is believed to be accurate, MNJRC cannot guarantee its accuracy
Time Trial Setup
For road time trial competitions an extension may be added to the steering system. The distance between the vertical line passing through the bottom bracket axle and the extremity of the handlebar may not exceed 75 cm, with the other limits as outlined in UCI article 1.3.022 (B,C,D) remaining unchanged.
A support for the elbows or forearms is permitted. Controls or levers fixed to the handlebar extension may extend beyond the 75 cm limit as long as they do not constitute a change of use, particularly that of providing an alternative hand position beyond the 75 cm mark. The angle between the forearm and upper arm cannot exceed 120° when the rider is in a racing position.
Other Bike Regulations
1.3.012 A bicycle shall not measure more that 185 cm in length and 50 cm in width overall. A tandem shall not measure more than 270 cm in length and 50 cm in width overall.
1.3.013 The peak of the saddle shall be a minimum of 5 cm to the rear of a vertical plane passing through the bottom bracket spindle (1). This restriction shall not be applied to the bicycle ridden by a rider in track sprint event, keirin, 500 metres or 1 kilometre time trials; however, in no circumstances shall the peak of the saddle extend in front of a vertical line passing through the bottom bracket spindle.
1.3.014 The saddle support shall be horizontal. The length of the saddle shall be 24 cm minimum and 30 cm maximum.
1.3.015 The distance between the bottom bracket spindle and the ground shall be between 24 cm minimum and maximum 30 cm.
1.3.016 The distance between the vertical passing through the bottom bracket spindle and the front wheel spindle shall be between 54 cm minimum and 65 cm maximum The distance between the vertical passing through the bottom bracket spindle and the rear wheel spindle shall be between 35 cm minimum and maximum 50 cm.
1.3.017 The distance between the internal extremities of the front forks shall not exceed 10.5 cm; the distance between the internal extremities of the rear triangle shall not exceed 13.5 cm.
1.3.018 Wheels of the bicycle may vary in diameter between 70 cm maximum and 55 cm minimum, including the tyre. For the cyclo-cross bicycle the width of the tyre shall not exceed 35 mm and it may not incorporate any form of spike or stud. For massed start competitions in the disciplines road and cyclo-cross, only wheel designs granted prior approval by the UCI may be used. Wheels shall have at least 12 spokes; spokes can be round, flattened or oval, as far as no dimension of their sections exceeds 10 mm. In order to be granted approval wheels must have passed a rupture test as prescribed by the UCI in a laboratory approved by the UCI. The test results must show that the rupture characteristics obtained are compatible with those resulting from an impact sustained during normal use of the wheel. The following criteria must be fulfilled:
• On impact, no element of the wheel may become detached and be expelled outwards.
• The rupture must not present any shattered or broken off elements, or any sharp or serrated
surfaces that could harm the user, other riders and/or third parties.
• The rupture characteristics must not cause the hub to become separated from the rim in such a way that the wheel becomes detached from the forks.
Without prejudice to the tests imposed by the laws, regulations or customs, standard (traditional) wheels are exempted from the rupture test referred to above. A traditional wheel is deemed to be a wheel with at least 16 metal spokes; the spokes may be round, flat or oval, provided that no dimension of their cross sections exceeds 2.4 mm; the section of the rim must not exceed 2.5 cm on each side.
1.3.019 Weight The weight of the bicycle cannot be less than 6.8 kilograms.
1.3.022 Structure
In competitions other than those covered by article 1.3.023, only the traditional type of handlebars may be used. The point of support for the hands must be positioned in an area defined as follows: above, by the horizontal plane of the point of support of the saddle (B); below, by the horizontal line passing through the highest point of the two wheels (these being of equal diameter) (C); at the rear by the axis of the steerer tube (D) and at the front by a vertical line passing through the front wheel spindle with a 5 cm tolerance (see diagram «Structure (1A)»). The distance referred to in point (A) is not applicable to the bicycle of a rider who takes part in a sprint, keirin or olympic sprint race, but must not exceed 10 cm in relation to the vertical line passing through the front wheel spindle. The brake controls attached to the handlebars shall consist of two supports with levers. It must be possible to operate the brakes by pulling on the levers with the hands on the lever supports. Any extension to or reconfiguration of the supports to enable an alternative use is prohibited. A combined system of brake and gear controls is authorized.
1.3.013 The peak of the saddle shall be a minimum of 5 cm to the rear of a vertical plane passing through the bottom bracket spindle (1). This restriction shall not be applied to the bicycle ridden by a rider in track sprint event, keirin, 500 metres or 1 kilometre time trials; however, in no circumstances shall the peak of the saddle extend in front of a vertical line passing through the bottom bracket spindle.
1.3.014 The saddle support shall be horizontal. The length of the saddle shall be 24 cm minimum and 30 cm maximum.
1.3.015 The distance between the bottom bracket spindle and the ground shall be between 24 cm minimum and maximum 30 cm.
1.3.016 The distance between the vertical passing through the bottom bracket spindle and the front wheel spindle shall be between 54 cm minimum and 65 cm maximum The distance between the vertical passing through the bottom bracket spindle and the rear wheel spindle shall be between 35 cm minimum and maximum 50 cm.
1.3.017 The distance between the internal extremities of the front forks shall not exceed 10.5 cm; the distance between the internal extremities of the rear triangle shall not exceed 13.5 cm.
1.3.018 Wheels of the bicycle may vary in diameter between 70 cm maximum and 55 cm minimum, including the tyre. For the cyclo-cross bicycle the width of the tyre shall not exceed 35 mm and it may not incorporate any form of spike or stud. For massed start competitions in the disciplines road and cyclo-cross, only wheel designs granted prior approval by the UCI may be used. Wheels shall have at least 12 spokes; spokes can be round, flattened or oval, as far as no dimension of their sections exceeds 10 mm. In order to be granted approval wheels must have passed a rupture test as prescribed by the UCI in a laboratory approved by the UCI. The test results must show that the rupture characteristics obtained are compatible with those resulting from an impact sustained during normal use of the wheel. The following criteria must be fulfilled:
• On impact, no element of the wheel may become detached and be expelled outwards.
• The rupture must not present any shattered or broken off elements, or any sharp or serrated
surfaces that could harm the user, other riders and/or third parties.
• The rupture characteristics must not cause the hub to become separated from the rim in such a way that the wheel becomes detached from the forks.
Without prejudice to the tests imposed by the laws, regulations or customs, standard (traditional) wheels are exempted from the rupture test referred to above. A traditional wheel is deemed to be a wheel with at least 16 metal spokes; the spokes may be round, flat or oval, provided that no dimension of their cross sections exceeds 2.4 mm; the section of the rim must not exceed 2.5 cm on each side.
1.3.019 Weight The weight of the bicycle cannot be less than 6.8 kilograms.
1.3.022 Structure
In competitions other than those covered by article 1.3.023, only the traditional type of handlebars may be used. The point of support for the hands must be positioned in an area defined as follows: above, by the horizontal plane of the point of support of the saddle (B); below, by the horizontal line passing through the highest point of the two wheels (these being of equal diameter) (C); at the rear by the axis of the steerer tube (D) and at the front by a vertical line passing through the front wheel spindle with a 5 cm tolerance (see diagram «Structure (1A)»). The distance referred to in point (A) is not applicable to the bicycle of a rider who takes part in a sprint, keirin or olympic sprint race, but must not exceed 10 cm in relation to the vertical line passing through the front wheel spindle. The brake controls attached to the handlebars shall consist of two supports with levers. It must be possible to operate the brakes by pulling on the levers with the hands on the lever supports. Any extension to or reconfiguration of the supports to enable an alternative use is prohibited. A combined system of brake and gear controls is authorized.