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Ultimate sealant has been two-and-a-half years in the making and achieves market leading sealing performance, with longevity and easy maintenance.
Ultimate sealant has been two-and-a-half years in the making and achieves market leading sealing performance, with longevity and easy maintenance.
Silca

Silca Ultimate Tubeless Sealant V2 - 500ml

£24.00
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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
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When you purchase this item, you will earn of rewards points to spend on your next purchase from us. You can spend your Rewards balance in-store & online.

Hassle free returns

If you decide that you do not want any item that we have delivered via an online or over the phone purchase, we are happy to offer you an exchange or refund within 14 days of delivery. Providing it is returned to us in its original and unused condition (including in its original packaging), along with the wrapping and delivery note (as proof of purchase) we will issue the exchange or refund which can take up to 14 days to process via our third party.

Personalised products, made-to-order products and custom bicycles where any part is fitted that is not on the original specification cannot be returned unless faulty. Where a deposit is taken against any item not in stock or against a bicycle or frame, it is transferable but non-refundable.

Methods of return are as follows:

1) To our shop

The easiest and quickest way to return your item or items is to take them to our Pampisford shop for a replacement or refund along with your copy invoice as proof of purchase.

2) By post (if the item has been posted to you)

To return an item by post you must firstly contact Cambridge Cycle Company. We will issue a Returns Authorisation which must accompany the goods being returned. Items returned without a Returns Authorisation cannot be accepted.

Let us know which item(s) you wish to return, and the details of any fault, along with your customer order number and your personal details and we will send you an email containing a returns note.

When you receive this email, simply print out the returns note and place it in your parcel with the item(s) you wish to return. Please package your item(s) securely, returning it in the original outer packaging where possible. All items returned by post (unless faulty) are returned at your cost. You are advised to obtain a certificate of posting (available from all Post Offices at no charge) when returning items by post. If you post your item(s) back to us, we will endeavour to send you a replacement or refund your payment within 14 days, providing your Returns Authorisation is included with the items returned.

3) Collection by Cambridge Cycle Company (larger items delivered to you by courier)

Depending on the size and weight of the item you wish to return, it may be necessary for Cambridge Cycle Company to collect your goods from you and we may charge you for collecting the goods if they are not faulty. We will inform you if the collection is necessary when you contact us about your return.

To arrange for an item to be collected by Cambridge Cycle Company, you must firstly contact us. We will issue a Returns Authorisation, which must accompany the goods being returned. Items returned without a Returns Authorisation cannot be accepted.

If we collect your item(s), we will endeavour to send you a replacement or refund your payment within 14 days, providing your Returns Authorisation is included with the items returned.

Upon receiving the product, we will examine it for faulty items or we may have to return it to the manufacturer for examination. We aim to dispatch a replacement product, arrange a repair or refund your money within 14 days, providing your Returns Authorisation is included with the items returned.

When returning goods, if no fault is found we do not refund delivery charges and may charge for collecting the goods if they are not brought into our stores.

We will endeavour to process returns within 14 working days of receipt.

You can contact Cambridge Cycle Company for further information.

This does not affect your statutory rights.

Silca Ultimate Tubeless Sealant V2 - 500ml

Season:2025

Brand:Silca

Code:SIAMAC059ASY0101

Ultimate sealant has been two-and-a-half years in the making and achieves market leading sealing performance, with longevity and easy maintenance.

It's capable of sealing holes up to 6+mm, while its hybrid natural and synthetic latex formula makes it long lasting and injectable, allowing clean top-up.

Silca's sealant has long made use of fiberfoam® technology, which contains small strand carbon fibres, 400% stiffer than fibreglass, to plug punctures quickly and with minimal air loss.

The new formula ensures it will dry less rapidly and stay liquid for up to 6+ months, while adjustments to the carbon strand length have facilitated injectability, without any sacrifice of sealing power. The formula is also safe with co2, not losing its effectiveness or coagulating during the inflation process.

The fibre dam created by the carbon fibre gives fast, effective sealing with minimal air loss, even in extreme conditions, such as temperatures down to -15°c, ensuring this sealant won't let you down.

Shop mechanics, meanwhile, will benefit from reduced labour time for installation and enhanced customer satisfaction, due to the sealant's ability to be injected through the valve core for easy replenishment.

Finally, ultimate sealant is not only non-toxic and more environmentally friendly than competitors, but kind to your tyres, as it contains none of the ammonia that can break them down over time.

Sealant per tyre:

  • 700c tyre:
    • x 28mm, 55ml
    • x 32mm, 65ml
    • x 40mm, 80ml
    • x 42mm, 85ml
    • x 45mm, 90ml
    • x 50mm, 100ml
  • 29er tyre:
    • x 2.0′, 100ml
    • x 2.25′, 115ml
    • x 2.4′, 125ml
    • x 2.6′, 135ml
  • 650b tyre:
    • x 47mm, 90ml
    • x 50mm, 95ml
  • 26′ tyre:
    • x 2′, 95ml
    • x 2.3′, 110ml
Sizing Information
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