Packaging: 2pcs per bag (Packaging updated to RISK branded bag)
Weight: 41g per bag (Measured manually)
Specifications:
700c * 18mm wide (Road bike / Fixed gear bike)
26-inch * 20mm wide (Mountain bike)
27.5-inch * 20mm wide (Mountain bike)
29-inch * 20mm wide (Mountain bike)
Function: Used between the rim and inner tube to prevent punctures. Allows for higher tire pressure, reduces tire resistance, and prevents tire blowouts.