For a more aggressive riding position for climbing, Specialized mechanic Benno Willeit "travelled" down the Rock Shox SID suspension fork from 100 to 90 millimetres on Jaroslav Kulhavy's 29er world champion bike.
Specialized man Willeit swaps grease for oil just for racing: this professional trick eliminates the last bit of friction from ball bearings. Caution: After the race, grease must be replaced!
You can download the PDF with the work steps free of charge below.