16.17.005 There should be no adjustment made possible to the equipment during the race. All adjustments must be made prior to the start of the race. 

16.17.006 [article abrogated on 01.02.09] 

(article introduced on 01.02.09) 

16.17.007 Wheels of the handcycle may vary in diameter between a minimum (ETRTO) 406 mm and a maximum of 622 mm. Modified hub attachments may be used if necessary. The width of handcycle double wheels may vary between 55 cm minimum and 70 cm maximum, measured at the centre of each tire where the tires touch the ground. 

(text modified on 01.01.04; 01.02.09) 

16.17.008 Disk wheels are accepted for handcycle in the mass start competitions. 

(article introduced on 01.02.09) 

16.17.009 A handcycle shall not measure more than 250 cm in length. Its maximum width shall be 75 cm overall. 

(text modified on 01.01.04; 01.02.09; 01.01.16) 

16.17.010 The shifting device should be within the extremities of the handlebars, except for H1, who can fit their shifting device on the side of their body to allow for their arm to shift gears. 

A braking device shall be fixed on the handgrips, except for H1, who can fit their shifting device on the side of their body to allow for their arm to brake. 

(text modified on 01.02.09; 01.01.10; 01.01.20) 

16.17.011 The largest chain ring shall have a guard securely fitted to protect the rider. The protection shall be made of adequate solid material and fully cover the chain ring over half of its circumference (180°) facing the rider. 

Protections which don’t fully cover the chain, such as mountain bike chain guide, are not allowed. 

(text modified on 01.01.04; 01.01.10; 01.01.16) 

16.17.012 Any fillets, or ribs, inserted at joins between tubes, shall be for strengthening purposes only. Non-functional, aerodynamic devices are not permitted for competition. 

(article introduced on 01.01.04; text modified on 01.02.17) 

