how to: Insert gel and memory foam pads to motorcycle seat

For years I've gotten a numb taint while riding longer distances. The seat on my hypermotard is narrow and forced you to move forward. Also, the 1100 air cooled twin sends power pulses right up through your nether regions.

I got my inspiration from here
Please Help.
Thanks !

I didn't find the right solution from the internet.
References:
- http://www.ducati.ms/forums/92-hypermota...cycle-seat.html
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