With this spacer, you can adjust the Smart Thru Axle to fit the thru-axle mount on the disc side of your frame. If in doubt, we recommend ordering extra spacers; they are inexpensive and it is very frustrating if the correct spacer is missing when you come to finish assembling the bike.
Herstellerinformation: Classified Cycling, Damplein 23, 2018 Antwerp, Belgium, https://www.classified-cycling.cc/