First of all, take out the part in brackets. A logline is meant to be an easy to read, quick summary. This just makes it confused.
Rather than writing 'Ojek,' just call it a motorcycle taxi business. Most people will be able to work this out. Just to be on the safe side even write 'Japanese transport compnay' as well.
As far as the logline goes, its pretty solid I think. the inciting incident is there, the protag is clear as is his flaw. The antagonist is also obvious. I would say maybe make the goal a little clearer. Something like '...must help his mother save their failing motorcycle taxi business by (doing something, presumably to do with being a reckless wannabe street racer)" but even that might be a little too much.