Challenge SMART Tubeless Sealant - 250ml / 8oz Tubeless Sealant This non-allergenic

This non-allergenic

Tim's Take: "A true heavy mud tire

For those times when it's dry and fast and your style is aggressive

So much so I bought every one they still had in stock this spring in hopes of being the place to go when cross comes around this year

Challenge SMART Tubeless Sealant - 250ml / 8oz Tubeless Sealant This non-allergenicSeal it up 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 shake the bottle. Available in a 250ml 8. 5oz bottle. Seals up to