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Incredible quality is a given with Silca and these tubeless valve kits are no exception. Light and stiff, the SpeedShield Rim protectors offer aero advantages too.
Incredible quality is a given with Silca and these tubeless valve kits are no exception. Light and stiff, the SpeedShield Rim protectors offer aero advantages too.
Silca

Silca Tubeless Valve Kit with Speed-Shield

£26.00
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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.

Anxiety-free returns

Returns and exchanges

If you are not completely satisfied with your purchase, simply return the item or items to us in their original condition* within 30 days of receipt. You must notify us in writing within 14 working days of placing your order, by post or email of your intention to do this.

RETURN ADDRESS:

Returns Department
7hundred Ltd
68 Peascod Street
Windsor
SL4 1DE

We will issue a refund, credit or exchange the item for a different size / colour if preferred. Delivery charges are only refundable if you have canceled your entire order within the 7 day Cooling-Off Period or where the goods are faulty and a refund is made.

Store Credit is valid for 2 years and cannot be redeemed for cash at any point.

Where you require an exchange, for example, because a size has been incorrectly ordered, we will make a £4.95 charge or deduct the value from Reward Points where available, to cover re-delivery costs.
(Note: For larger items such as wheels, smart trainers, this charge may vary and you will be informed of the price before the item is sent).

Payment for this must be provided before we will send out the replacement item.

For European and International orders the charge will vary depending on the current cost of delivery to that country. For an accurate price, please contact us before returning your item.

Sorry, we cannot accept returns of books or software where any seals have been broken or working products that have been used.

Please note :

  • The item is your responsibility until it reaches us. For your own protection, we recommend that you send the parcel using a delivery service that insures you for the value of the goods.
  • The cost of returning the item to us is your responsibility.
  • The parcel can take up to 7 working days to be processed once received.

* Note: when trying on items of clothing, please ensure that you are not wearing perfume / aftershave or a deodorant which may leave a scent or marks on the item. In the case of cycling shorts please ensure that underwear is worn when first trying them on. The item(s) must be returned in its original packaging with all labels and tags and with all enclosed documentation.

We will be unable to accept the return of any item where there is evidence that these instructions have not been followed.

For large items such as bikes, trainers and associated large / bulky accessories and wheels, we reserve the right to charge a re-stocking fee of 5% to cover our administration costs.

Faulty Item

If the item you received is faulty, please contact us quoting your order number, your name and address, details of the product and the reason for return, and whether you require a refund or a replacement. We will then advise on how to proceed with the return. You have 30 days from receipt of the faulty item to notify us of your intent to return it and a further 30 days in which to do so.

Incorrect Item

If the item you received is not what you originally ordered, please contact us quoting your order number, your name and address, details of the product and the reason for return, and whether you require a refund or a replacement. We will then advise on how to proceed with the return.

All refunds will be given as soon as possible, and usually take the form of a refund transaction onto the card used for the original purchase. At the very latest we will refund your money within 28 days from the day we receive your returned item. In the case of incorrect ordering and undisclosed reasons for return, a credit or exchange may be issued and the customer will be expected to pay the return postage costs.

All returns must be accompanied by a completed returns form and a copy of the original invoice.



You can submit a returns form here:

Returns Form

Silca Tubeless Valve Kit with Speed-Shield

Brand:Silca

Code:SIAMVVTUBASY00

The highest quality Tubeless Valve stems with SpeedShield Rim Protectors for reduced weight, improved aerodynamics and more robust tubeless conversions, especially with carbon and deep section wheels.

Not just bluster either. These valve kits are exceptionally well engineered with fully machined brass valve cores. Light and strong with better airflow, these are serious bits of kit. The SpeedShield Silicone rim protectors serve to spare your rims from damage while simultaneously improving aerodynamics.

SILCA Tubeless valve stems are designed to strike a balance between weight, strength, airflow and ease of installation. Born out of frustration at the two extremes of product in the market: inexpensive, heavy brass valve stems, or uber-lightweight aluminum stems that had reputations for being problematic in the field. In classic SILCA fashion, they found a better solution.

For SILCA Tubeless Valve Stems, Silca have chosen to keep the geometry of the finest brass valve stems, while producing them from the finest cold drawn aluminum bar rather than a hollow extruded bar. This process is less cost effective than extrusion, but allows for a higher material yield strength and more accurately machined parts. As a result, the valves weigh less than half of brass valve stems, yet are 50-200% stronger than common lightweight aluminum valve stems.

They are partnered with the finest, fully CNC machined valve cores you can buy. Just looking at them, you can see the quality, from the fully machined brass pin with roll formed thread, to the spin-formed ridge (instead of crimped) that keeps the valve nut from unthreading too far. The fully machined design leaves more internal space within these valves allows for better airflow as well as making them more tolerant of sealant.

Perhaps the most exciting feature of the SILCA tubeless program is the Speed Shield. Speed Shield grew out of Silca's frustration with valve stem nuts scratching their rims...particularly carbon rims! The concept grew out of an initial study they did on ways of improving aerodynamics around the valve stem, which proved that 'shielding' the valve stem could save about 0.15-0.20 watts of energy per 10mm of valve stem encased in the shield. Of course you cannot shield the whole stem, but SIlca looked at this a second time in regards to tubeless and found that shielding the lower 10mm of the stem AND the nut resulted in even greater savings, 0.2-0.3 Watts per wheel at 30mph. Each Speed Shield contains a spherical recess to hold the valve stem nut, and the high durometer, high strength silicone is optimized to ensure the valve stem maintains optimal tension within the rim so that it remains sealed, but also ensures there are no bending loads in the stem which are the cause of so many failures in aluminium stems.

  • Less than half the weight of brass valve stems
  • 50-200% Stronger than typical aluminium valve stems
  • Ultimate level, fully machined brass valve cores with improved airflow
  • SpeedShield Improves wheel aerodynamics while protecting carbon rims
  • Spherical nut eliminates bending forces on valve stem for improved strength
  • Available 44, 60, 80, and 100mm lengths
  • Kit contains 2 Valve Stems, 2 Spherical Valve Nuts and 2 SpeedShield Rim Protectors
Sizing Information

Tubeless Kit Fitting Guide

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