This is a pair of blocks which are velcro mounted and which you can replace on specified Evolution saddle models : JEV01 - JEV02 - AEV01 - AEV02
They are very easy to replace, make sure to place them symmetrically on each side.
Reference BLO01
Spare (changeable) Block for Ikonic Jumping Hybrid JHY01
Recommended retail price $90.00
Reference BLO002
Velcro Spare (Interchangeable) Blocks for IKONIC DEV03
Recommended retail price $245.00
Reference BLO003
Velcro Spare (Interchangeable) Blocks for IKONIC DHY02
Recommended retail price $100.00
Reference BLO004
Ikonic Front Block on Velcro for JEV01/02 and AEV01/02 Saddles
Recommended retail price $110.00
Interchangeable gullet system