Like rollers, they must be installed in a specific orientation. Here is a picture of the sliders in my variator showing the correct positioning:
I used 5.5 gram sliders - the recommendation from the manufacturer is to use sliders roughly 10% lighter than the rollers you are using. Now, stock on my late-model ET2 is 6.6 gram, however I have been using 5.7 gram rollers which came with my SP3 upgrade. Not wanting to push my machine into a total rev monster, I decided to stay roughly at the weight class of the SP3 rollers. Note: if you are wanting to add Dr Sliders to your stock ET2, you probably shouldn't go this light... maybe 6 gram sliders based on the manufacturer suggestion.
I've only taken it for a quick spin down the road, but I am very excited at this point: acceleration was much more even and smooth, and my top speed increased by several miles per hour. How all this plays into fuel economy remains to be seen, but very happy at this moment!
Current set-up as of this post: DR Evo 70cc kit (still a bit low on compression following the soft-seize and hone), Leo Vince SP3 exhaust, Dell'orto PHVA 17.5mm carb with a 78 main jet and A7 needle. The rest is stock except for the sliders!
