your fault still, wherever he falls. you were the one making a turn. he was going straight. he had the right of way. di porke nauna ka ng 100 meters or even more or di mo siya nakita e lusot ka na. the bike was in the lane before you made the turn no matter what you say it was clear.

the bike was speeding? true or not it is a separate offense and does not exonerate you from your fault.