Most of you geared riders have gone through this, I'm sure. You showed up to a group ride a few years back and there was some joker there with a single speed. You sort of rolled your eyes and were maybe even somewhat annoyed that you'd have to wait for this guy. And then he completely smoked you. Ever since, you've been wondering what could possibly be done do slow these single speeders down to a pace you could keep up with.
1) Only ride with a single speeder if there are trails nearby that are at least 20% grade. Preferably closer to 30%.
2) Right at the beginning of the ride, start talking about how there are some nearby trails that you've really been wanting to try (the trails that exceed 20% grade).
3) Mention that the trails are a bit steep, so you don't know if it's a good idea for a single speeder to ride them.
4) (VERY IMPORTANT STEP, which is why I'm putting this in caps, bold, underline and in red font, which is by far the best way to denote importance) Tell at least one of those single speeder jokes that just never get old, like "well, if it gets too steep you can always shift into an easier gear... oh wait, ha ha ha ha." Single speeders LOVE these jokes. Seriously, they can't get enough of them.
***Note: steps 3 and 4 are like SS'er bait, and it works better on SS'ers than rainbow-colored powerbait at a fish farm. Upon hearing these types of jokes, a SS simply cannot resist the opportunity to prove his/her ability to ride anything you can on gears.
5) Take them on the steep trails first thing. There is no point in making their kneecaps explode at the end of the ride. While riding these trails, shift into your granny gear and try to keep a straight face.
6) Once the SS'ers are good and tired, then ride the other trails you had planned on riding from the beginning. If you've implemented the process with the requisite level of proficiency, the SS'ers will be so tired that you may actually keep them in sight during the remainder of the ride.
1) This process can never be used against he who discovered and disclosed the process when he is riding his single speed (i.e., me).
2) The process fails if the single speeder you're riding with is named Kenny. He'll bury you regardless of which trails you take.