ISM Standard Rails 459 g or less Bicycle Seats
Having the right bicycle seat on your bike can make all the difference. Be sure to pick a seat that will fit both your body type and personal riding style.
About ISM - "Over the years, ISM's seats have helped propel Ironman wins, Olympic medals, Road Racing podium appearances, and countless age group victories. Pros and amateurs alike are finding riding and competing enjoyable again due in large part to riding the world's most comfortable bike seat."