Please choose the correct ending to complete the given sentence: Cars & Other Vehicles: [header] How to dress for winter motorbike riding [title] Check to see if your helmet has good winter features. [step] Look online to find if your helmet visor can be replaced for one that has pin lock. Pin lock is two pins on a visor and an insert that clips in.

Ending1: If you buy an insert from a shop they will often fit it for you. The insert prevents the visor fogging up. Ending2: Look online for the sticker on the front of the helmet that will enable you to see if it can be removable. If it can't be removable, you can try using a round shield for protection. Ending3: This is often indicated on the inside or underneath the front, so look carefully to see if you need to replace these clips. [substeps] If your helmet is missing a pin and there are pins on it, then you may need to replace it. Ending4: In other words, you can slide a lock on a helmet through the bolded notch of the visor. If you have a steady hand, you can slide a pin into the notch.

Answer format: ending1/ending2/ending3/ending4