Choosing the right bottom bracket size is essential to ensure optimal operation of your bike. Here are some selection criteria, advice, recommendations and information on the standards to take into account:
Choice criteria :
1. Type of bike:
The size of the crankset may vary depending on the type of bike it will be mounted on, whether it is a road bike, a mountain bike, a city bike, etc.
2. Compatibility:
Make sure the crankset is compatible with the type of transmission and mounting system (square axle, hollow axle, integrated axle, etc.) of your bike.
3. Diameter:
The diameter of the crankset, often expressed in millimeters, determines the length of the cranks and can influence the transmission ratio. It may vary depending on the size of your bike frame and your body type.
Advice and recommendations:
1. Consult a professional:
If you are unsure which crankset size to choose, it is recommended that you consult a qualified bicycle mechanic or seek advice from a specialist shop.
2. Consider your driving style:
Bottom bracket size may also depend on your riding style and personal preferences. For example, riders prioritizing comfort might opt for a crankset with shorter cranks, while performance-oriented riders might prefer longer cranks for better leverage.
Standards:
1. Length of cranks:
Standard crank lengths typically range from 165mm to 180mm for adults. Riders who are taller or have longer legs may prefer longer cranks, while riders who are shorter or have shorter legs may opt for shorter cranks.
2. Transmission ratio:
Choosing the size of your chainring and crankset will also depend on the type of terrain you plan to cover and your fitness level.
By taking into account these criteria, advice, recommendations and standards, you should be able to choose the size of crankset that best suits your needs and your driving style.