ACERBIS Junior Stability Collar - Youth Category_ATV & Cargo Boxes The lock (not provided) is

The lock (not provided) is threaded down a waterproof tube that runs through the visor aperture and out of the bottom of the helmet so that you can lock it to the bike

Some people find this to be a much more effective method of ensuring the perfect chain condition

Max CC Rating: 125cc Street

Adjustable pointer for truing wheels

500 times thinner than hair

ACERBIS Junior Stability Collar - Youth Category_ATV & Cargo Boxes The lock (not provided) isAcerbis Stability Collar Ergonomically shaped stabilizing collar is made of hypoallergenic, soft, comfortable materials. These collars are equipped with a removable fastening systems to ensure a comfortable, yet secure fit. The collar is completely removable and washable. Lightweight, comfortable foam base. VELCRO and click closure. Side straps in order to adjust click closure.