you stretch the band over the back of the helmet
You can say "motocicleta" or "moto" for short. Remember that it is "la moto".
se rouler sur une moto
It is often abbreviated to BMX
The cast of Moto-Cross - 1977 includes: Cleo Kretschmer Hubertus Martin
Bicycle Moto X, with X meaning Cross.
Bicycle Moto Cross
BMX
Biking goggles are typically designed to provide wind and dust protection, while ski goggles are designed to protect against cold temperatures, snow glare, and UV rays. Ski goggles often have features like anti-fog coatings and ventilation to prevent fogging during high-intensity activities, which may not be as necessary for biking goggles.
Bell helmets are very good, what I have worn for the last 30 years starting with the Moto 3 to my current Moto 7.
BMX
The Arai helmet is a top of the range motor sports helmet. It is worn in Moto GP, Motorcross and by over 50% of the formula 1 drivers on the circuit today.
Not sure which type of bike you are referring to. a standard bicycle = la bicicleta a motorcyle = la motorcicleta (or it can be shortened to moto which is more common in Spain)