...SRAM explained that the idea for the 11-32 cassette was born directly from Contador's triumph on stage 16 mountain time trial to KronPlatz at the 2008 Giro d'Italia, a result that helped secure his hold on the maglia rosa [italics].
The 12.9 kilometre climb on gravel roads with gradients up to 24 per cent saw SRAM technicians and Contador's mechanics work to build a custom cassette capable of offering the Spaniard a ratio as low as 34x30.