I would say no. They are standing out of the ear, and it depends on the helmet, maybe yours will have space for them, but even so - I see no way to put the helmet on with them in ear. And besides this riding with in-ear buds is dangerous in so many ways: you are completely isolated from the environment and in case of an accident they may cause damage to your ear or even to your brain. If you insist on music buy in-helmet speakers like all the helmet communication sets have. Ride safe!