Does anyone have a recommendation?
Pegs will work on a 2006. Won't fit a 2003 K bike.Ken Estrada makes highway pegs for the K1200Gt or the K1300GT ( same body). I have had then since he started making them years ago. pricey $375.00 per pair and they do the job perfectly. you can google him as his site is on Facebook (Estrada Design Ventures).
I've had them on my 09 K1300GT for about a year now. Love them. Only about 10" difference from the stock pegs, but it does provide an extra position for my legs and tailbone when pushing 2-3 hours in the saddle. Link to his facebook page below:I got Ken Estrada's last year, and after my custom saddle, it's the best investment in comfort I've made for my '07. Worth every penny.