2020 RockShox Sid Ultimate 29 Boost 100mm - Brand New. Hub spacing is boost 110x15. Rake is 51mm (standard for a 100mm fork). The item "2020 RockShox Sid Ultimate 29 Boost 100mm Brand New" is in sale since Wednesday, April 15, 2020.This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Forks". The seller is "gavin929" and is located in Birmingham, Alabama. This item can be shipped to United States.