Yep, a 16mm tap. The inside diameter of the Renthals is 14mm. When mine were done I was told it was necessary to run a 15mm drill in the bar end first. Others have proved since that this is unnecessary so the bar can be tapped directly.
When I started school it was imperial, and when I left school.....it was still imperial :lol .
When I started school it was imperial, and when I left school.....it was still imperial :lol .
Whizz kid sitting pretty on his two wheeled stallion.