I ordered 4" risers but once they were fitted by the dealer they said they couldn't fit the tacho so they left it off. The only other option offered was a very crappy look angle bracket to hold the tacho on. I made myself unpopular by asking them to put it back the way it was. (Actually they were pretty good about it and didn't charge anything). Their suggestion is a set of customised bars but they are expensive, especially with internal wiring needed, and I like the existing ones which are similar to wide beach bars but just a bit low for me. I'm just slouching a bit so even an extra inch would do at a pinch.
I did get them to tilt the bars up a bit but that has pushed them a bit further away and made them worse.
Any ideas for lifting the bars a bit that looks good but don't cost a fortune?
Just an Idea... fit some spacers and longer bolts under you standard risers. I made up some 3" long stainless steel ones once that worked a treat. Same OD as the bottom of your risers, 1/2" clearance hole up the guts and whatever length you want. Go to specalized bolt shop for the Grade 8 bolts you need. One piece risers that match your top clamp would be better though.
you can buy riser extensions custom chrome sell them i brought a few sets not long ago for me tbars tay come in 1 inch and 1 1/2 ,for 1 inch and 1 1/4 bars .
Have a look at the ZODIAC risers part # Z241144..4.5"PULL BACK in CHROME
#Z241587... 4.5"Pullback in BLACK
or #Z241164... 4.5" Straight chrome
http://www.zodiac.nl/en/catalog/bbook38/14.pdf section 14 page 025...
Your Tac should mount the same as now... just extend the wires from under the tank.