Hope 40T-Rex Cassette Range Expander SRAM Colour:Black The compressive element of the BackInStock-16-03-2026 Size:170mm and all over print 007273 R009-S

The compressive element of the material also stimulates blood flow which can help prevent the build-up of lactic acid during and post activity to reduce the prospect of cramp and stiffness

The machined aluminium cups hold stainless steel cartridge bearings in stainless races

5" (55cm) chain length

Weight 102g

Hope 40T Rex Cassette Range Expander SRAM Colour:Black The compressive element of the BackInStock 16 03 2026 Size:170mm and all over print 007273 R009 S The compressive element of the material also stimulates blood flow which can help prevent the build up of lactic acid during and post activity to reduce the prospect of cramp and stiffness The machined aluminium cups hold stainless steel cartridge bearings in stainless races