Challenge Smart Sealant - 250ml The SMART Sealant was designed

The SMART Sealant was designed to work with both vulcanized and handmade TLR and Tubeless tires

because re-gluing when the glue goes brittle is quick and easy

- Lightweight BITEX centre lock disc hubs

Easily converts LOWMASS rear hub to a 135mm QR axle

and build with internal nipples

Challenge Smart Sealant - 250ml The SMART Sealant was designedHigh performance tubeless systems deserve high performance tubeless sealants. The SMART Sealant was designed to work with both vulcanized and handmade TLR and Tubeless tires. This non allergenic, ammonia free formula can seal up to 6mm cuts, remains liquid in the tire for up to 6 months, doesn't coagulate with Co2 use, and doesn't damage rims or tires with extended use. Installation is straightforward using the application tip and there is no need to