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The Oxford Grinder S1 is the ultimate high-security lock, engineered to withstand angle-grinder attacks.
The Oxford Grinder S1 is the ultimate high-security lock, engineered to withstand angle-grinder attacks.
Oxford

Oxford Grinder S1 Angle Grinder Resistant U-Lock

£179.99
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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
Earn Rewards
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

RETURNS

Our returns policy lasts 30 days from date of delivery. We are unfortunatly unable to offer a refund or exchange once this time frame has been exceeded.

To be eligible for a return, your item must be unused, unworn, undamaged and in the same condition that you received it. It must also be in the original packaging with all tags and labels attached so that the item may be re-sold.

For ALL returns, whether a general, unwanted item return or in the case of a faulty or damaged item. please contact customer services in the first instance either by email
shop@kenellerkercycles.co.ukor via telephone on 01482 446341.Instuctions for return and will be given at this time. Please do not return any item without authorisation.

Please do not send your purchase back to the manufacturer. In the case of faulty goods or damage, we have to receive authorisation from the manufacturers prior to return.
Several types of goods are exempt from being returned. Perishable goods such as food, supplements, treats, creams and lotions cannot be returned once opened.

Additional non-returnable items:
Gift cards
Downloadable software products
Some health and personal care items

There are certain situations where only partial refunds are granted: (if applicable)

Book with obvious signs of use
Any item not in its original condition, is damaged or missing parts for reasons not due to our error.
Any item that is returned more than 30 days after delivery.

Refunds (if applicable)

General returns are at the expense of the purchaser: i.e you are responsible for the cost of returning the item and the goods remain your property until they are recieved back with us ( this is logged with a time / date at our premesis when delivered). We STRONGLY reccomend that items are returned using a fully tracked and insured service, as the goods, if lost in transit by the courier, remain YOUR responsibility. We accept no liability for any returns lost or damaged by a courier whilst in transit.
Once your return is received and inspected, we will send you an email to notify you that we have received your returned item. We will also notify you of the approval or rejection of your refund.

If the return is approved, your refund will be processed within 1 working day via the original method of payment.
Please allow up to 7 Working days for the credit to appear on your account.

Late or missing refunds (if applicable)

If you haven’t received a refund after the stated mimimum period for processing with your payment provider or bank, please, in the first instance, contact your credit card company or bank. There is often some processing time before a refund is posted.

If you’ve done all of this and you still have not received your refund after the above time period, please contact us either by phone or email

Sale items(if applicable)

Only regular priced items may be refunded, unfortunately sale items cannot be refunded.

Exchanges (if applicable)

We only replace items if they are defective or damaged after we have recieved authorisation form the item manufacturer. Please contact us in the first instance either by phone or email and we can then begin the faulty goods procedure.

Exchanges.
If you need to exchange your purchase for a different size or colour, we are more than happy to accomodate, providing we have a suitable exchange item in stock. Please contact us via telephjon e or email in the first instance - BEFORE returning the goods and we can appraise and tailor your exhange to suit the stock or re-order position.
Depending on where you live, the time it may take for your exchanged product to reach you, may vary.

Shipping

To return your product please contact us first either via phone or email so we can log and expect your returning item. We will give you all the return address cetails at this time.

As previously stated (see RETURNS section above). You will be responsible for paying for your own shipping costs for returning your item. Shipping costs are non-refundable. If you are returning goods that are faulty or damaged, once we have recieved authorisation from the manufacturer, we will either facilitate return of goods directly to the manufacturer - at no cost to you, or the manufacturer will not require the item return and will conduct the faulty goods claim via photographic evidence.

Oxford Grinder S1 Angle Grinder Resistant U-Lock

Brand:Oxford

Code:zz-lk375BLK

The Oxford Grinder S1 is the ultimate high-security lock with a 14mm shackle, engineered to to combat the growing threat of angle grinder attacks, delivering next-level security for your bike.

Its anti-disc cutter coating is designed to withstand an average of 10 angle-grinder discs before one side of the shackle can be cut through. Even then, the lock remains intact, thanks to the double lock mechanism!

The Grinder S1 is designed to outlast and outperform leading locks, resisting up to 5x more cutting discs thanks to their hardened square steel shackles and advanced anti-angle grinder carbide coating. The unique faceted carbide surface deflects grinder blades from edge to edge, rapidly destroying discs and dramatically slowing down theft attempts.

A high-security double-locking system prevents shackle rotation, meaning thieves must cut through both sides of the lock to gain access. Anchoring the shackle in two places significantly increases resistance to leverage and twisting attacks and in the event of a partial breach, the lock body remains secured.

Certified Powered Cycle and Pedal Cycle Sold Secure DIAMOND this security solution is the last lock you'll ever need.


Built for everyday use as well as maximum protection, the Grinder S1 features:
- Protective silicone-coated shackle and body to help prevent bike damage
- A self-sealing keyway cover to keep out water and debris
- A highly pick- and drill-resistant disc detainer lock cylinder for reliable, smooth operation
- Anti disc cutter coating: takes an average of 10 discs to cut through one side of the shackle
- 14mm hardened steel shackle core
- Double locking mechanism: double the attack time required
- Unique carry bracket
- Weatherproof key barrel shield
- Supplied with 3 keys
- Replacement key service should you lose all your keys
- Independently tested
- Sold Secure Powered Cycle DIAMOND and Pedal Cycle DIAMOND
- 10 year guarantee*
- Dimensions: 260x184mm (HxW)

* The Oxford guarantee is for defects in workmanship or materials, not normal wear and tear, abuse, or improper use, and does not affect your statutory rights.


Oxford Grinder S1 review, BikeSocial, September 2026:
"'Playing catch-up' was what one social media pundit commented when I posted on the Bennetts Facebook page that I was about to test the new S1 and S2. But Oxford hasn't just caught up with its competitors; it’s sprinted past them, stealing their lunch money on the way."
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