What endcaps do 353 NSW wheels ship with and what endcaps are available? June 30, 2021 21:46 Updated The Zipp 353 NSW wheels ship with 12mm thru axle endcaps. Quick release end caps are available separately. Check out the end cap compatibility chart here. Related articles Are there frame fit specifications required for SRAM Red eTap 2x11? What are the benefits of the new hub vs. the old Cognition hub? What tubeless tires are compatible with Zipp’s hookless rims? How many points of engagement does the Zipp Cognition V2 rear hub have? The new Zipp 353 NSW wheels have a tubeless profile with hookless, straight sides. Do you have a list of tires that are compatible? Comments 0 comments Article is closed for comments.