Quick Summary
Muc-Off 825 Tubeless Tyre Sealant is a tubeless tyre sealant for bicycle wheels and tyres. It is described as compatible with Tubeless Ready and complete UST wheels and tyres, and it is presented as suitable for downhill, enduro and road cycling.
The sealant is described as sealing cracks and holes up to 6 mm, along with porous tyres and bead or rim gaps. It is also described as containing UV detector dye, which is intended to show holes under UV light.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Tubeless tyre sealant for bicycle wheels and tyres. |
| Compatibility | Compatible with Tubeless Ready and complete UST wheels and tyres. |
| Sealing use | Described as sealing cracks and holes up to 6 mm, plus porous tyres and bead or rim gaps. |
| UV dye | Includes UV detector dye to show holes under UV light. |
| Variant note | Described as available in 140 ml, 1 litre and 5 litre sizes. |
What to Compare Before Buying
- Tyre and wheel type: Check that your setup is Tubeless Ready or complete UST if you want to match the stated compatibility.
- Repair need: Compare the stated sealing limit of up to 6 mm with the type of puncture or leak you want to address.
- Pack size: Choose the size that suits how often you maintain your tyres and how much sealant you want to keep on hand.
- Detection feature: If fault-finding matters, the UV detector dye is a useful feature to note.
Choosing the Correct Version
The product is described in more than one size, so confirm the pack size before choosing an offer. The listed options are 140 ml, 1 litre and 5 litre.
Before You Decide
Check the wheel and tyre type, the pack size and the stated sealing limit before choosing this sealant. If your setup is not Tubeless Ready or complete UST, compare a different tubeless option instead.






