No problem on providing the basic information to allow him to do an electronic transfer. As already stated it is all on a cheque.
However....be very careful. If he transfers money in electronically, do not release the motorbike until the money HAS CLEARED.
He could lodge a cheque to your account (especially one drawn on a non-irish bank) which would appear on your statement. However if the cheque subsequently bounces the money would be withdrawn.
Foreign cheques can take 10 days to clear.