ISM PN 3.1 Saddle BSS-001010 203mm fixed-mount Galfer rotor for

203mm fixed-mount Galfer rotor for mountain biking

Smooth Touch Fabric Surface

Range of use: Gravel

Outsole with stiffness index 8 for the performance oriented rider

ISM PN 3.1 Saddle BSS-001010 203mm fixed-mount Galfer rotor forAbout ISM PN 3. 1 Saddle ISM Saddles have been the most used saddle in Ironman since 2013, and the popularity is due to the best comfort when on long rides and races while still maintaning the most areodynamic & efficient position. Utilising ISM's Performance Narrow 3 shape chassis. The PN3. 1 uses the same chassis as the PN3. 0, but with added padding for those seeking a softer ride. With a slightly wider 120mm rear and shorter length, the PN 3. 1