Originally Posted by Dave Noble

I think that 1 hr 45 minutes is too short a time to allow in Singapore where travelling on separate itineraries. If all goes well, you will get your bags quickly and be able to get them to the check in desk in time, but it wouldn't take much to miss it

If you do book it, then be prepared to have to buy a new ticket on the day on a later flight if you are late since 3K will not be responsible .

Personally , I would stay that night in Singapore and continue on later in the day