Challenge Smart Tubeless Sealant - 250ml
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www.sprocketandgear.co.ukChallenge Smart Tubeless Sealant
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Product Information
Full details
The Challenge Smart Tubeless Sealant is an ideal solution for cyclists using vulcanized or handmade tubeless-ready (TLR) tires who demand long-lasting puncture protection without the harsh chemicals often found in traditional sealants. This ammonia-free, non-allergenic formula provides reliable performance by sealing cuts up to 6mm and maintaining a liquid state for up to 6 months, though users should note that the internal lifespan is dependent on riding climate and ambient temperature.
All features
| Model Part Number | CH-90011 |
|---|---|
| Brand | Challenge |
Extended Product Information
FAQs
Does this sealant damage carbon rims?
No, the ammonia-free formula is safe for carbon fiber rims, alloy rims, and rubber compounds.
Can I use CO2 to inflate the tire with this sealant?
Yes, this sealant is specifically formulated to be CO2 compatible and will not coagulate when exposed to it.
How often should I refresh the sealant?
Under normal conditions, it remains liquid for up to 6 months. We recommend checking and replenishing every 4-6 months.
Do I need to shake the bottle before use?
No, the specific chemical structure of this sealant means it does not require shaking before installation.
Is it safe for skin contact?
Yes, it is a non-allergenic formula, though it is always best practice to wash your hands after handling any cycling lubricants or sealants.
Troubleshooting
Sealant leaking from the valve stem
Ensure the valve core is tightened correctly or clean out dried sealant residue from inside the valve stem with a small wire.
Tire loses pressure overnight
Check the rim tape for tears and ensure the tire bead is fully seated; add a small amount of extra sealant if the tire is porous.
Sealant not sealing a puncture
The puncture may exceed 6mm; if it does not seal, use a tubeless plug (bacon strip) to provide a base for the sealant to harden against.
Pros and Cons
Pros
- Non-allergenic and ammonia-free for safer handling and rim protection
- Effective at sealing larger punctures up to 6mm
- Compatible with CO2 inflation canisters
- Does not require constant shaking before application
- Long internal lifespan of up to 6 months
Cons
- Limited to 250ml size, which may require multiple bottles for larger tire volumes
- Performance can vary based on extreme temperature fluctuations
- Cannot seal sidewall tears larger than 6mm
Setup, Compatibility & Care
To install, remove the valve core from your tubeless valve stem. Attach the applicator cap from the 250ml bottle directly to the valve and squeeze the required amount of sealant based on your tire width. Once finished, reinstall the valve core and inflate the tire. Because the formula is non-allergenic and does not contain ammonia, it is safe to use with all alloy and carbon fiber rim tape and nipple assemblies. To maintain peak performance, check the fluid levels every 3 to 6 months, especially if you live in a hot or dry climate, as evaporation may occur faster than in cool, humid environments.