I’ve just completed the Air Seat for my new Coker (due in from Darren soon).
Finished Air Seat
I started with the Viscount saddle that came with my Summit. I thought it would work well with the GB4 handle because of the heavy metal bottom plate.
I started by cutting the foam with a razor knife and then using a hacksaw blade. I left all the foam in the very front.
Foam Cut
Bolted on the GB4 handle.
GB4
I used a UDC airbag with a 20" x 1.75" tube folded nearly in half.
Air Bag
I decided to add a Smallish gel pad I found at Walmart.
Gel Pad
Stretched the Fusion saddle cover over and voila. Start to finish about 30 minutes.
The first six photos won’t load. However the final photo of the complete seat looks great! Very nice job! 
Fixed Pics
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Hey that looks good. How does it feel?
You should get a back bumper on that if you didnt already. I wouldnt want youre cover to rip after a fall.
Haven’t ridden it yet, waiting for my Coker.
It will have a back bumper.
Re: My first Airseat
I dont see the UDC airbag on unicycle.com at all. Am I missing something?
Re: Re: My first Airseat
Good looking seat, let us know how it performs:D