Contact Us Toll Free in Canada and the US of A: 1-877-977-7328;       Or Email me at jhdixon@rogers.com

International Calls: 001-506-387-8092       And "YES" we take orders over the phone.

MK10 Series Noseless Bicycle Seat

Our newest generation MK10 Series uses a super-exotic material that gives it an incredible 210,000+ psi in yield strength! As well, the MK10 has an amazing high-tech upper surface!

MK10A Spongy Wonder Bike Seat – anatomically correct bicycle seat for every bicycle configuration.

MK10A

  • For riders 180 lbs and over.
  • Larger Cushion Size.
  • For ladies with more of an “Hourglass” figure.
  • Will fit into all major types of seat post clamps.
  • Removable and replaceable cushions.
  • Cushions are adjustable inwardly and outwardly (width) for an exact fit.
  • Get $5 off per seat, a free T-Shirt, and a copy of a great little book called Unconventional Means when you buy 2 seats or more!
  • Shipping prices on our order cart are in Canadian funds.
  • $124.99 CAD (approximately $97.37 USD)




MK10B

  • For riders under 180 lbs.
  • Smaller Cushion Size.
  • Will fit into all major types of seat post clamps.
  • Removable and replaceable cushions.
  • Cushions are adjustable inwardly and outwardly (width) for an exact fit.
  • Get $5 off per seat, a free T-Shirt, and a copy of a great little book called Unconventional Means when you buy 2 seats or more!
  • Shipping prices on our order cart are in Canadian funds.
  • $124.99 CAD (approximately $97.37 USD)




Seat Cover

  • Our pull-on seat covers allow SW riders to further customize their rides by "feel" as the covers provide a smooth low co-efficiency of friction upper surface. Customize for how you ride, what you ride in and even the terrain!
  • $22.50 CAD (approximately $17.53 USD)




Even more happy thoughts from SW Bicycle Seat Riders

Seeing injuries from bicycle seats fairly often in my internal medicine practice, I was happy to discover the Spongy Wonder Bicycle Seat. I immediately bought one for my own bicycle, and was quite gratified to see how comfortable it was, while still able to maintain good control of my bike. I've had mine for a year now, and have yet to put on the replacement cushions! If you're a rider, old or young, male or female, you need one of these bicycle seats.

Dr. Philip Alexander, MD
College Station TX

The Spongy Wonder Bicycle Seat is great and the best of the noseless, perineal sparing Bicycle seats that I've tried. I'm going to the site to order another one for my other upright bike.

Seth Manoach MD
Assistant Professor of Emergency Medicine
CPR Committee/Rapid Response Program
Brooklyn, NY

I lecture nationally on patients with pain and want to show a picture of your bicycle seat in my lectures. Please give me permission.

Hope K. Haefner, M.D.
Director, The University of Michigan Center for Vulvar Diseases
Dept. Obstetrics and Gynecology


Spongy Wonder MK10 in a micro-adjustable seat post

Spongy Wonder MK10 in a micro-adjustable seat post


Riding a bicycle was a no-brainer for Albert Einstein

Riding a bicycle was a no-brainer for Albert Einstein

The Spongy Wonder Bike Seat is critical in  underwater testing

The Spongy Wonder Bike Seat is critical in underwater testing


Spongy Wonder Inc. is the manufacturer of the world's only modular hornless bike seats. These two ergonomically and anatomically correct noseless bike seats eliminate the urological and neurological damage caused by conventional and "modified" conventional bike seats and are "fully customizable" and adjustable.