Steve,
Get yourself a bearing puller like this https://www.ebay.co.uk/itm/12-pcs-G...933175?hash=item23cb2323f7:g:8ysAAOSw5wVd1ROU it is what I use. Consider the value of the bike then the tools look very low cost.
Whatever you do NOT try brute force as you may end up damaging the mainshafts - a very expensive mistake
Get yourself a bearing puller like this https://www.ebay.co.uk/itm/12-pcs-G...933175?hash=item23cb2323f7:g:8ysAAOSw5wVd1ROU it is what I use. Consider the value of the bike then the tools look very low cost.
Whatever you do NOT try brute force as you may end up damaging the mainshafts - a very expensive mistake