I purchased the genuine Keihin jets for rejetting the carbs on my 1996 Honda CBR900RR from Rocky Mountain ATV/MC because they had the best pricing online. All the jets were genuine Keihin and I couldn't be happier with my purchase.
I would recommend this item to any one I use a lot of their parts and they never let me down well made products for your bike out there and they have a lot to choose from for your needs put their parts to the test at every race
This was for my 2002 XR100. It came in a plastic bag with no instructions, but if you need help installing it it is very well laid out in the owners manual. The price was fine is it worked, so I would recommend this.
I went from running stock #98 to a #115 main jet on my 2007 honda recon and it made the best difference in the world in power, throttle response and torque. You too can bust out some sweet 12 o' clock wheelie ropes at 30mph with these jets in your PD series Keihin carb. NOTE: was not paid to say this but seriously, if you are having throttle response problems buy bigger jets. You'll like the way you look(while wheelie-ing), I guarantee it.