Renthal drilling and tapping

[WayneUK]

I've just fitted some renthal 785's and was wondering what drill and tap I will need t be able to fit original bar ends?

[Mustang]

It’s m16 x 1.5 

[robbo]

Yep, M16 at 16 tpi(threads per inch).

[WayneUK]

when i took it to a engineer he told he it was a M16 x 1.5 taper tap and a 14.5 mm drill bit?

[robbo]

If you have access to an engineering workshop, I believe the proper way is to predrill the bars before tapping them. My pal on the otherhand just wound the tap into the bar and it worked out fine. I paid for the workshop process to the tune of £35 :eek . My pals bars cost him a pint in the pub. :lol  Pretty sure the 1.5 x the tap size is the same as 16tpi, but stand to be corrected .

[WayneUK]

If you have access to an engineering workshop, I believe the proper way is to predrill the bars before tapping them. My pal on the otherhand just wound the tap into the bar and it worked out fine. I paid for the workshop process to the tune of £35 :eek . My pals bars cost him a pint in the pub. :lol  Pretty sure the 1.5 x the tap size is the same as 16tpi, but stand to be corrected .

so he just tapped them without drilling them first?, has anyone else done it this way?

[WayneUK]

Is this the right tap I'll need?
https://www.amazon.co.uk/ATOPLEE-Metric-...723&sr=8-2

[74eldiablo]

Well and truly rinsed for £35...even the receptionist could do that in 5 mins with all the right tackle

[WayneUK]

yeah watched a video on doing it and it only took 2 mins to do one side

[robbo]

Well and truly rinsed for £35...even the receptionist could do that in 5 mins with all the right tackle

I nearly walked out and left him with the bars. Apparently workshop time is £70 an hour, minimum charge half an hour. Should have asked first I suppose, but thought it was a 5 minute job and would be priced accordingly. Lesson learnt, for sure. :'(

[WayneUK]

Well, Tap came today so had a go at tapping them, and everything went real smoooth, and bar ends fit perfectly  :thumbup