1998 Honda Accord Steering wheel vibration when braking

I have an 98 6 cyl Accord with 214000. Had transmission replaced recently. Noticed that when braking from highway speeds, 65+mph, the steering wheel vibrates. When braking at lower speeds this vibration is not that obvious - a very slight one. But at 65+, the steering wheel vibrates quite noticeably. During accelerating or coasting there does not seem to be any problem. I did notice this even before I changed out the transmission for other reasons. I am curious if it just is an alignment issue or cv joints or brakes - the obvious culprits unless there is something else to check for. The tires are new Michelins that are factory recommended for this vehicle. The brakes have not been replaced for the past year and a half. Thanks for answering my question. - Veer