Originally Posted by Moisture

how often does the average person come across singletrack challenging enough to call the need for suspension? 1%? Less?

If you like to have suspension on singletrack that isn't too challenging, you're simply using the extra shock absorption to tackle terrain instead of sheer riding skill. Nothing can replace rider skill when it comes to getting that front axle over obstacles yourself.

in terms of speed and agility, on gravel, pavement and most types of singletrack, you will never come close to a properly balanced rider using rigid.