Changing to triple -Octalink or Hollowtech II ?

[John the Monkey]

Good thinking Steve... but all 10 speed, and all too expensive for me (even when they are half of RRP !)

FWIW, my Giant SCR2.0 crankset (9 speed cassette etc) is a triple, and uses an SRAM crankset - all the chainrings are labelled 10 speed....