Well its been a long time but again I have a readers question, yet again stemming from Sophie merely asking questions so here we go: What are the difference between strap, chain and direct drive pedals. On the end of this I will also briefly go into cam and sprockets too (ooohhhh exciting!)
So now we get to the different types of pedal. First up we have the industry standard, the chain pedal.
The strap pedal, you guessed it, has a strap instead of a chain. In essence it works just like a chain.It pulls down the beater and goes rigid when stretched, however being fabric it has a bit more elasticity in it. This has a very different effect on the pedal. When you stomp on the pedal the strap stretches slightly, then as it regains it rigidity it accelerates to retain its standard size (again, when you stretch an elastic band you can feel it pulling as it wants to revert to its original form) this causes the pedal to accelerate faster and strike much harder against the bass drum. In essence it is just a more powerful version of the basic chain pedal. However being fabric they are much more prone to breaking.
Finally we have the direct drive pedal:
Part 2: Cams and Sprockets
What is a cam and sprocket? Well these are what the chain/strap is attached to. Now you may think "hey its just a circle that the strap or chain is attached to, how can they be special at all?" Well, its down to the shape of them. Sprocket cams are mostly completely circular and quite thin meaning they can only hold a single chain. However being light and round they offer a more balanced feel.
A cam pedal works slightly differently. They have a unique shape which changes the way the pedal feels.
So there you have it, any questions and feel free to ask :)