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Featuring a cutting-edge, integrated ball valve system, the valve ensures lightning-fast airflow, turbocharging the sealant filling process. Say goodbye to the hassle of traditional tubeless valves that clog up and require the valve core to be removed to fill sealant and achieve sufficient air flow during tubeless set up.
Featuring a cutting-edge, integrated ball valve system, the valve ensures lightning-fast airflow, turbocharging the sealant filling process. Say goodbye to the hassle of traditional tubeless valves that clog up and require the valve core to be removed to fill sealant and achieve sufficient air flow during tubeless set up.
Muc-Off

Muc-Off Big Bore Lite Tubeless Valves - Black

£40.00
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

Hassle Free Returns




30 DAY BIKE EXCHANGE POLICY


The 30 Day bike exchange allows you to buy a bike with confidence. If you are unhappy with the bike you can return a new bike within 30 days and swap it for a different one. Please note, this is an exchange, not a refund. If you’re not happy with your new bike for any reason, please contact us and we can arrange a convenient time bring it back into store and exchange it – so long as it’s clean and isn’t broken – by this we mean things like buckled wheels, crash damage, broken components, cracked frames etc.

The 30 Day Bike Exchange is completely separate from our 30 day returns policy and applies to new and unused bikes. It can only be used once on each new bike purchase.

We do however urge all customers to test ride the bike prior to purchase to ensure they are happy with the fit and ride experience of the bike.

30 DAY RETURNS POLICY ON UNUSED PRODUCTS

Any item, except food and bikes can be returned to us for any reason within 30 days, provided it has:

  • Not been used or fitted
  • Is returned in its original packaging
  • Has a valid proof of purchase from Beeline Bicycles

Online or in-store purchases can both be returned to any store free of charge, or can be returned by post.

Click & Collect customers can buy with confidence knowing they can try the item before leaving the store. Should you decide it's not right for you, it can be conveniently exchanged or refunded straight away in the store, or you still have up to 30 days to return it if you take it away.

Refunds will be processed using the same method of payment used for the original purchase. Credit & debit card refunds must be made to the card used for the original purchase, Cheque payments will be refunded in cash but due to banking restrictions can only be refunded at least 14 days after the original purchase date.

We are unable to offer any refund without a valid receipt.

FAULTY ITEMS

All products purchased from Beeline Bicycles come with a full warranty which covers manufacturing faults and defects in workmanship. If you feel that your purchase has developed a fault, the fastest response we can offer is to bring your product into store for an assessment. We will need to see your proof of purchase.

If taking your product in store is not an option then please email info@beelinebicycles.co.uk. Please include photographs of your product (please keep below 20mb), a copy of receipt so we can immediately start to assess the issue.

In some cases the manufacturer/supplier and/or Beeline Bicycles may require to see the item(s) before repair or replacement can take place. If this is the case we will advise of return details and lead times.

All used items being returned to us must be cleaned for hygiene purposes.

On receipt of your goods we will carry out a full inspection & contact you within 3 working days of receipt.

Proof of purchase is also required with all potential warranty claims.

RETURNS BY POST

Please provide us with all the details of why you wish to return your purchase, as your input is invaluable to us when reviewing the products we stock.

If you are returning by post, please complete the Returns Formthen attach the returns address label to your parcel. Please include a copy of the returns form and proof of purchase.

It is your responsibility to ensure that the item is returned to us in a safe and secure manner, we suggest that you use a recorded postal/courier service. Please ensure that the service you use covers the value of the goods in the parcel. Return shipping costs are non-refundable. If the item is being returned due to our error then any postage will be reimbursed upon assessment.

It can take 5 days for your parcel to reach us dependent on the courier’s service that is used. Once we receive your parcel we will inspect and process your return within 48 hours. Refunds can take up to 5 days with your bank to appear in your account. You will receive an email update upon the completion for your return.

Muc-Off Big Bore Lite Tubeless Valves - Black

Season:Current

Brand:Muc-Off

Code:21117VAR

Muc-Off: Introducing our latest innovation in tubeless valve technology: The Big Bore Valve range. Engineered with precision and designed to deliver maximum inflation simply and efficiently, this patent-pending valve sets a new standard and is the benchmark in high air flow tubeless tyre systems with a revolutionary ‘Straight through’ internal design for maximum airflow fire power.

Featuring a cutting-edge, integrated ball valve system, the valve ensures lightning-fast airflow, turbocharging the sealant filling process. Say goodbye to the hassle of traditional tubeless valves that clog up and require the valve core to be removed to fill sealant and achieve sufficient air flow during tubeless set up.

Our Big Bore Lite offers up to 230% higher air flow than traditional Presta valves thanks to the straight through bore design.

With our ball valve construction and integrated lever, you can quickly open and close the valve for effortless airflow control, and even fine tune your pressure whilst you're out riding.

Crafted from 7075 aircraft grade CNC machined aluminium construction with a stainless steel ball valve, this fully serviceable valve is built to withstand the toughest rides, whatever the conditions.

Features:

Big Bore. No Core: Experience maximum airflow and simplified set up & servicing with our innovative coreless valve design with integrated stainless-steel lever-operated ball valve system.
Unrestricted Airflow: The straight-through design delivers up to 254% greater airflow than Presta valves – Supercharging tubeless set ups and getting you back to the action fast.
Dial In Pressures On The Fly: The integrated lever opens and closes the valve for micro-adjustments to pressures whilst you’re riding, so you can adapt to changes in the terrain or conditions.
It's Super Tough!: Precision CNC machined from 7075 aircraft grade aluminium.
Universal Compatibility: Featuring a universal valve head that’s compatible with most screw on and push fit pumps, as well as a 4-way tyre insert air flow base that’s compatible with most tubeless inserts.
Serviceable Design: With spanner flats on the head, lever and body, this valve can be serviced and maintained to last for years – Plus the coreless design means you can check sealant health through the valve with our Hey Dipstick! (Sold separately).


What's included?

  • Big Bore Valve: Available in 6 colours and 4 different sizes (60mm available in Black only).
  • Hex Slot Key: 4mm machined hex key slot for easy installation / removal
  • Rubber Bases & O-Rings: Supplied with various rubber bases and O-Rings to optimise fit and seal with multiple rim types
  • Bespoke Spanner: Specifically designed to tighten the big bore body during installation and removal.
  • Sold Separately: Sealant dipstick also available separately
How To Use:

1. Remove Ball Valve:
First, remove the ball valve body, cap, locking ring & O-ring from the valve stem.
2. Choose Base: Choose the correct rubber base for your rim type. Rims with a curved rim section will use the circular rubber base. Rims with a square rim section will use the square rubber base. Slide this down to the bottom of the valve stem. (If your rim has a larger valve hole and the smaller circular fitment is too loose, use the larger circular fitment to plug the hole).
3. Push Valve Stem Into Hole: Now push the valve stem into the hole in the rim and push it right the way through. Then place the rubber 0-ring onto the valve stem and slide it all the way down until it meets the rim.
4. Screw Locking Nut: Screw the locking ring onto the valve stem and tighten down above the o-ring. This sandwiches between the locking ring and the rim.
5. Tighten Ball Valve Body: Firmly tighten the ball valve body onto the stem using your fingers. Now use a 4mm hex to hold the stem base in place inside the rim, and with an 8mm spanner, tighten the valve body to the stem with a quarter turn. Be careful not to over-tighten, which could lead to damaging the O-Ring. Rotate the body to ensure the lever is pointing towards you. TIP - Use some thread lock such as our Loc-On (available soon!) for an extra secure seal.
6. Push Firmly Down: Now push firmly down on the valve base inside the rim as you tighten the locking ring. Keep pushing until the locking ring is hand-tight and the rubber O-Ring squashes out slightly. This way you know you've created a good airtight seal. TIP - Don't over-tighten as this can cause leakage.
7. Rotate Lever: Rotate the lever open and fill with Muc-Off Sealant and inflate to your desired PSI! Remember to close the valve so the arrow on the lever is pointing up before removing your pump. You're now ready to roll. To adjust psi on the fly simply open the valve slightly to release air to your desired pressure.
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