This is a brand new Time Trial SMP saddle, specifically handmade for Time Trial riders. This new saddle is available in 5 sizes: TT1, TT2, TT3, TT4, TT5. TT1: Pelvis Size: For people with wide pelvis and includes High padding. TT2: Pelvis Size: For people with medium - large pelvis and includes High padding. TT3: Pelvis Size: For people with medium size pelvis and includes High padding. TT4: Pelvis Size: For people with medium size pelvis and includes High padding. TT5: Pelvis Size: For people with medium - large size pelvis.Selle