Challenge SMART Tubeless Sealant - 250ml / 8oz Tubeless Sealant This particular model is a

This particular model is a 38mm size

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

If you aren't planning on contesting the 17/18

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

slightly loose dirt

Challenge SMART Tubeless Sealant - 250ml / 8oz Tubeless Sealant This particular model is aSeal 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