The crankset on a Freestyle Flat BMX plays a crucial role in transmitting power from the rider to the wheels of the bike when performing tricks on a flat surface. Here is a description of its function, its characteristics and the associated standards:
Function :
1. Power transmission:
The crankset converts the rotational motion of the pedals into the rotational motion of the rear wheel, allowing the rider to accelerate and maintain speed while performing tricks.
2. Shock resistance:
The crankset is subjected to significant forces during landings and repeated impacts during flat freestyle practice. It must therefore be designed to withstand these constraints and ensure the durability of the bike.
Features :
1. Material:
Freestyle Flat BMX cranksets are generally made from chromoly steel or aluminum to combine lightness and strength. Some high-end models may be made of titanium to further reduce weight while maintaining the necessary strength.
2. Type of cranks:
Freestyle Flat BMX cranksets can be equipped with either three-piece or two-piece cranks. Three-piece cranks generally offer better impact resistance and increased durability, while two-piece cranks can be lighter and more economical.
3. Length of cranks:
Crank lengths may vary depending on rider preference and bike size. Shorter cranks provide better responsiveness and freedom of movement when performing tricks, while longer cranks provide better leverage and increased pedaling power.
4. Bottom Bracket Compatibility:
It is important to choose a crankset that is compatible with the bicycle frame's bottom bracket to ensure proper fitment and efficient power transmission.
Standards:
1. Axle diameter:
Freestyle Flat BMX cranksets typically feature a 19mm (0.75 inch) diameter axle to fit standard bottom bracket bearings.
2. Pedal Compatibility:
Freestyle Flat BMX cranksets are generally compatible with a variety of standard bicycle pedals, although some models may require specific adapters or configurations.
En résumé, le pédalier sur un BMX Freestyle Flat est un composant essentiel qui assure la transmission efficace de la puissance du pilote aux roues du vélo pendant l'exécution des tricks sur une surface plane. Avec des caractéristiques spécifiques telles que le matériau, le type de manivelles et la compatibilité avec le boîtier de pédalier, il contribue à une expérience de conduite optimale et permet aux riders de repousser leurs limites et de perfectionner leur style en flat.