The Stan's Race Day Tubeless Sealant is a high-crystal-concentration tubeless tire sealant developed in collaboration with world-class athletes and their mechanics, targeted at riders preparing for race day or long-distance events. Built on the same proprietary liquid base as Stan's Original Tubeless Sealant, the Race Day formula increases sealing crystal content by 200% and adds XL-sized crystals capable of repairing larger punctures than the standard formula. The sealant must be installed by pouring directly into the tire over the bead — it is not compatible with valve-core injection or syringe-style installation tools. Stan's recommends visually inspecting sealant levels every 2–3 weeks to monitor liquid volume, as the Race Day formula has a faster dry-out rate than the Original. One liter seals up to 16 tires, with per-tire volume requirements varying by tire size — consult Stan's sealant volume charts for tire-specific guidance.
Formula contains 200% more sealing crystals than Stan's Original Tubeless Sealant formula
Added XL-sized crystals extend puncture repair capability to larger cuts and holes
Shares the same proprietary base formula as Stan's Original Tubeless Sealant
Must be poured directly into the tire over the bead, valve-core or injector installation is not compatible
Stan's recommends inspecting sealant levels every 2–3 weeks to monitor liquid volume
Store in a cool, dry place away from direct sunlight and extreme temperatures to maximize shelf life
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Dante MVG
2024 Sworks Tarmac SL8 Frame
Specialized SWorks SL8 light and fast. Sierra Bike Supply was helpful and responsive. Recommended online store.
S-Works Tarmac SL8 Frameset
Casey Sparks
Literally EPIC
Fast shipping and perfect frame set as described. It's literally the lightest built MTB I've ever felt. My wife will be smashing on it at this year at the Leadville 100. LFG Thanks guys!
S-Works Epic World Cup Frameset
Andrew Thomson
Exceptional Wheels
The CLX III are exceptional I was a little apprehensive about buying them having ridden the Enve 4.5 but you feel less crosswinds and their lighter and spin fast. The spokes seemed to offer a lot of dampening vibration. Win win in my book.
After many years I wore out my derailleur gears. Since I ride on my wind trainer daily, I needed to get up and riding again. Riding us part of my cancer therapy. Replacing the gears was a quick and easy way to fix the problem. Cost was fine and the delivery was fast. Thank you.
Got this for my kids bike. He does XC racing. Has been riding in dry lose dirt, wet conditions. Lots of climbing and some downhill. He loves them. Shipped fast and in sexure packaging. I would definitely buy again.
Heard a lot of good things about this tires put them on my commuter. The roll much faster than the schwable energizers on it. Puncture protection only time will tell.
