Oxford Grinder S2 U-Lock 16mm

16mm anti-angle grinder U-lock with double locking mechanism, anti-cut coating and pick & drill resistant cylinder

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£219.99

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Verified Customer Reviews for Oxford Grinder S2 U-Lock 16mm

Fantastic bit of kit
5
06 Nov 2026 by Dale
No attempts to steal my bike with this lock, can be mounted round a frame so no need to carry in a bag. Solid and looks cool
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Solid bit of kit
5
22 Oct 2026 by Michael R
Bought this to go along with a Litelock X1 which itself is a sturdy lock that saved me from one theft attempt already.

The Grinder X2 is another level of hefty though. Just the weight of it tells you all you need to know and it's plenty wide enough to get over my front tire (GB350S).

One thing I like over the Litelock is the locking barrel. It's very smooth and feels like it will last. I've had cheaper Oxford locks and the barrels always stay really functional if kept well. My Litelock nearly stranded me once because the barrel became unaligned and I had to use a pin to reset it like I was trying to pick the thing.

I'd take this over the best locks right now from Litelock and Hiplok.

Like any protection though I still wouldn't use it on its own. Get other locks, alarms, chains, trackers. The more layers the better your chance they'll pick an easier target.
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Bennetts test winner
5
22 Oct 2026 by Paul H
Smooth action lock and good fit of the shackle to lock body. Fits around my front wheel. Achieved the best independent test result for angle-grinder resistance.
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Doesn't fit spoked wheels
5
22 Oct 2026 by Glen
It is a godsend for my work bike. Very heavy and well made. I really love the double lock mechanism and hope to never find out if the anti grinder protection works as well as advertised but it certainly gives peace of mind. The only minor gripe I have is that the Oxford Grinder S2 U Lock works well on the bike I bought it for but doesn't on my other bike that has a bigger tyre.
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Oxford Grinder S2 U-Lock 320mm
5
16 Sep 2026 by Andy C
Good solid piece of kit, cheaper than the main competition but from a good company, from what I’ve watched online Oxford seem confident in its strength to stop a thief. Again a fantastic service from Sportsbikeshop, legends.
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Description

Oxford Grinder S2 U-Lock 16mm

  • 16mm hardened steel shackle core
  • Protective silicone-coated shackle and body to protect bike
  • Self-sealing keyway cover blocks water and debris
  • Highly pick and drill-resistant disc detainer lock cylinder
  • Anti-cut coating takes an average of 15 discs to cut through one side of the shackle
  • Double locking mechanism
  • Supplied with 3 keys
  • Replacement key service available
  • Sold Secure Powered Cycle & Pedal Cycle DIAMOND rated
  • Dimensions: 320mm x 184mm

The Oxford Grinder S2 is the ultimate high-security lock with a 16mm shackle, engineered to resist angle-grinder attacks. Its anti-disc cutter coating is designed to withstand an average of 15 angle-grinder discs before one side of the shackle can be cut through.

The Grinder S2 is designed to outlast and outperform leading locks, resisting up to 5x more cutting discs thanks to the 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.

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

Product Videos
Oxford Grinder S2 U-Lock 16mm VideoThe Oxford Grinder S2

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