To improve your shopping experience today and in the future, this site uses cookies.
I Accept Cookies
The Muc-Off No Puncture Hassle Tubeless Sealant is designed to perform under the most challenging race conditions.
The Muc-Off No Puncture Hassle Tubeless Sealant is designed to perform under the most challenging race conditions.
Muc-Off

Muc-Off MTB Tubeless Mountain Bike Sealant 500ml

£18.00
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

No Hassle Returns

Returns

Shop with confidence. If you've ordered the wrong size or you're not happy with a purchase it's not a problem. We want to help you find the right products to get the most out of your cycling. Simply return the item to us within 30 days in unused condition with all the packaging and we'll replace it or refund you. Kindly note that refunds can take up to 14 working days to process. *InvisiFrame kits are non-returnable/non-refundable.

We do not offer free returns because we aim to keep the cost of the product as low as possible. However, if the goods are found to be faulty, damaged or not as described, please contact us to discuss the returns process.

Call us if it's a bike as we can help arrange collection. Tel 01752 849315 or info@certini.co.uk

There is a downloadable returns form to complete and return with your goods.

Returns Address:

Certini Bicycle Company
10 Kingsmill Road
Tamar View Industrial Estate
Saltash
PL12 6LD

Under the Consumer Rights Act you have a legal right to reject goods that are of unsatisfactory quality, unfit for purpose or not as described, and get a full refund - as long as you do this quickly. This right is limited to 30 days from the date you buy your product.

CHRISTMAS RETURNS

We want to take the hassle out of Christmas for you so we have extended our Returns period during this time. Any products purchased between 1st December 2024 and 24th December 2024 can be returned until 15th January 2024. Please refer to our returns policy before returning your items.

Muc-Off MTB Tubeless Mountain Bike Sealant 500ml

Season:2024

Brand:Muc-Off

Code:21090

Finally, a super lightweight yet highly effective tubeless sealant. The Muc-Off No Puncture Hassle Tubeless Sealant is designed to perform under the most challenging race conditions. Its cutting-edge molecules fill larger holes and tears, while the advanced latex instantly forms a strong seal. Plus, the unique UV detection system highlights any punctures you might have missed during your ride.

Developed in collaboration with the world's top downhillers and pro peloton teams, this is the finest tyre sealant available. It’s non-corrosive and easily washes off with water. Compatible with tubeless ready and full UST wheels/tyres, No Puncture Hassle Tubeless Sealant works in a pressure range from 15psi to 80 psi and temperatures from -20°C to +50°C. The pouch fits your Presta valve perfectly, making it ideal for your toolkit or ride pack for emergency top-ups on the go.

Please Note: Only the 140ml Tubeless Sealant Kit includes a Measuring Scoop, Valve Core Removal Tool, and UV Torch.

  • Keep out of reach of children.
  • Dispose of contents/container in accordance with local regulations.
  • Avoid contact with eyes.
  • Do not drink.

How to Clean Sealant Off Your Kit:

All tyre sealants can stain. If No Puncture Hassle Tubeless Sealant sprays on your kit out on the trail, immediately rinse the affected area with clean water from your bottle and wipe off with a damp cloth as soon as possible. Key Tip: Avoid letting the sealant dry before you can properly wash your kit at home.

Once home, rinse the area with clean water, then use a pre-wash product (ensure fabric compatibility first) before washing your kit in the machine with a good laundry detergent. Alternatively, hand wash with a quality liquid cleaner as soon as possible. (Always follow the manufacturer’s washing instructions).

  • For Downhill/Enduro/Road/Gravel/MTB
  • Seals tears and holes up to 6mm
  • Seals porous tyres and bead/rim gaps
  • Lasts up to 6+ months in temperate climates* and won't ball up
  • Contains cutting-edge molecules to fill large holes and tears
  • Includes unique UV detection system that highlights any punctures
  • Non-corrosive and easy to wash off with water
  • Ammonia free
  • CO2 compatible

Minimum amount per tyre:

(add up to 30ml extra for increased protection)

  • 26" MTB & 27.5": 60-75ml (4 to 5 scoops)
  • Cross 700c: 60-75ml (4 to 5 scoops)
  • 29" MTB: 105ml-140ml (7 or the whole pouch)
  • Downhill: 120-140ml (8 or the whole pouch)

*If using in extreme heat (+35°C) simply top up if needed.

Project Green:

Project Green is Muc-Off's never-ending commitment to deliver a multitude of environmentally-focused improvements across their business. Muc-Off love the planet they ride on, it’s their playground, and they’re driven to protect it for everyone.

This product has a Project Green credential; meaning that it’s either biodegradable, refillable, reusable, or all three.

Technical Information
How To:
  1. Remove all old rim strip or tape and clean rim.
  2. Make sure the rim is clean and dry before applying tape.
  3. Get the tape from the packet and line it up from the opposite side of the valve.
  4. Start by unwinding a small amount of the tape and pressing it down using your thumb or finger to hold pressure down.
  5. Continue to hold while you pull back on the tape and stick down tight once you have a few cm on the tape will stick and holding is no longer needed.
  6. Continue the entire way around the rim (if it has a big concave in you can pull and wiggle the tape to fill any edges)
  7. Overlap the tape by roughly 10 – 15cm
  8. Leave a small amount unstuck so that you can cut the remainder off
  9. Once cut sketch and pull the tape down to create a seal
  10. Go around the rim with your thumb to make sure there is no air pockets or messed areas.
  11. Once your happy with how it looks using a small pin locate the valve hole and cleanly pierce the tape ready for the valve
  12. Grab your tubeless valve and remove the lock ring and o ring
  13. Chose the right rubber fitment for your rim tape and insert valve into rim
  14. Refit O-ring and Lock ring making sure you lock the valve in (don’t go to tight or could damage the rubber)
  15. Re-fit your tyre of choice carful not to damage the tape (by using tyre levers ect)
  16. Inflate tyre to create a fit (should hear some popping around the rim)
  17. Release Air and remove valve core using the spare valve cap
  18. Grab the sealant pouch and give it a shake
  19. Unscrew the cap and fit on the valve in a up right position
  20. While holding the pouch spin the wheel downward so that the pouch is now upside down
  21. Insert the sealant by rolling the pouch down
  22. Spin wheel back up right and remove pouch
  23. Reinsert valve core and inflate to your pressure
Sizing Information
Professional Opinion

Also in the range

Home Mountain Biking Components Muc-Off Tyres & Tubes