The X-Drive Pedal Kit is compatible with the Shearwater 125 and Makana 100. It is sold separately with the Shearwater 125, but comes standard with the Makana 100.
The inflatable Uptown 100 comes standard with the Impulse Drive however there is an optional Uptown 100 X-Drive Pedal Kit sold separately. 
The Impulse Drive Pedal Kit is compatible with both the Shearwater 125 and Makana 100 as well. It is sold separately as an add-on to our pedal kayaks, unless choosing the Makana Impulse Drive model.