Excellent new demo take off condition. 1 1/8' x 180mm tapered steerer. 29 inch 100 x 15mm thru axle. Did not fit my headtube dangit.The item "Crown steerer unit, CSU, ROCK SHOX SID XX TAPERED 7 29ER, carbon" is in sale since Friday, October 25, 2019. This item is in the category "Sporting Goods\Cycling\Bicycle Components & Parts\Forks". The seller is "vandymed09" and is located in Whitefish, Montana. This item can be shipped to United States.