General Characteristics of the Birelart Double Fixing Drive

• Compatibility : Designed for Karts Birelart, including Charles Leclerc and RicCiardo models.
• Fixing : Double attachment on the rear axis, ensuring increased stability and a better distribution of mechanical stresses.
• Materials : Generally in Anodized aluminum (black, gold, or other colors according to references), sometimes in magnesium for high-end or competition versions.
• Tree diameters : Available for several shaft diameters (25 mm, 30 mm, 40 mm, 50 mm), with standard key clave (6 mm or 8 mm).
• Entr'axe and assembly 
• Weight (kg) : Variable according to the material (eg ~ 390 g for a 50 mm aluminum floating model).
• Options : Some models are available in Floating version for optimized braking in competition.

Specificities for Charles Leclerc and RicCiardo models

• Integration : Disk doors for these models are often designed to fit the Birelart CL chassis (Charles Leclerc) and Ricciardo Kart, with optimized geometries for competition.
• Performance : High-end versions (eg magnesium) offer a best thermal dissipation and a reduction in weight, ideal for Categories KZ, OK, or Rotax.
• Standards : Respect the Standards Birelart in terms of security and performance, with pieces tested in international competition.

Key points to check

• Diameter of the back tree : Make sure the disc holder corresponds to the diameter of your axis (30 mm, 40 mm, or 50 mm).
• Fixing type : Check the key (6 mm or 8 mm) and the number of fixing holes.
• Chassis compatibility : Some models are specific to CL or RicCiary chassis; Check the exact reference.
• Use : For the competition, prefer floating or magnesium versions.