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Oxford Grinder S1 260mm anti-angle grinder U-lock - front product view with retail sleeve
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Oxford Grinder S1 260mm anti-angle grinder U-lock - angled rear side product view
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Oxford Grinder S1 260mm anti-angle grinder U-lock - front view of shackle and locking mechanism
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Oxford Grinder S1 260mm anti-angle grinder U-lock - external and internal lock dimension diagram
New
Oxford Grinder S1 260mm anti-angle grinder U-lock - lock body, Sold Secure Diamond label and key detail
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Oxford Grinder S1 260mm anti-angle grinder U-lock - protective coated Oxford lock body close-up
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Oxford Grinder S1 260mm anti-angle grinder U-lock - weather-protected lock keyhole close-up
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Oxford Grinder S1 260mm anti-angle grinder U-lock - disassembled U-lock and three supplied keys
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Oxford Grinder S1 260mm anti-angle grinder U-lock - installed securing a bicycle to railings
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Oxford Grinder S1 260mm anti-angle grinder U-lock - secured through bicycle frame at an anchor point
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Oxford Grinder S1 260mm anti-angle grinder U-lock - demonstration of angle grinder cutting resistance
New
Oxford Grinder S1 260mm anti-angle grinder U-lock - front product view with retail sleeve
Oxford Grinder S1 260mm anti-angle grinder U-lock - angled rear side product view
Oxford Grinder S1 260mm anti-angle grinder U-lock - front view of shackle and locking mechanism
Oxford Grinder S1 260mm anti-angle grinder U-lock - external and internal lock dimension diagram
Oxford Grinder S1 260mm anti-angle grinder U-lock - lock body, Sold Secure Diamond label and key detail
Oxford Grinder S1 260mm anti-angle grinder U-lock - protective coated Oxford lock body close-up
Oxford Grinder S1 260mm anti-angle grinder U-lock - weather-protected lock keyhole close-up
Oxford Grinder S1 260mm anti-angle grinder U-lock - disassembled U-lock and three supplied keys
Oxford Grinder S1 260mm anti-angle grinder U-lock - installed securing a bicycle to railings
Oxford Grinder S1 260mm anti-angle grinder U-lock - secured through bicycle frame at an anchor point
Oxford Grinder S1 260mm anti-angle grinder U-lock - demonstration of angle grinder cutting resistance
SKU: LKLK375

Oxford S1 Anti-Angle Grinder U-Lock 260mm - Sold Secure Diamond

£179.99 £149.99
In stock 17 sold this week
Pay in 3 £50.00×3
Pay in 4 £37.50×4
PayPal £50.00×3
Free Delivery
Get it 3–5 working days
Fulfilled from our Birmingham warehouse
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Home Delivery Standard & next-day options
Standard delivery Usually 3–5 working days

Tracked delivery to your door.

Next-day delivery Selected in-stock items

Select at checkout if available for your order.

Trusted delivery partners
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Options and charges shown at checkout. Remote areas may take longer.

Click & Collect Choose your collection date
TrailSurge Nuneaton · Unit 62 Centenary Business Centre, Nuneaton, CV11 6RY Monday–Friday · 10am–4pm
Preferred collection date
Available from — · 7 working days ahead

Select Pickup · TrailSurge Nuneaton at checkout. We'll confirm when your order is ready; dates are requested, not guaranteed.

Returns & Cancellations 14-day cancellation · 30-day unopened returns
Change of mind Within 14 days of delivery
Unused, unopened items Up to 30 days

Policy conditions and return costs may apply. Your statutory rights are unaffected.

Read returns policy
Accepted payment options
Oxford Official Oxford Warranty Manufacturer cover, replacement parts and product support Included
Warranty period
Manufacturer warranty included. The exact warranty period and component cover depend on the product and manufacturer.
What’s covered
Confirmed manufacturing defects affecting the original product within the applicable manufacturer warranty period.
Parts and support
TrailSurge can assist with warranty queries, technical support and available replacement parts or accessories. Please contact us with your order number, product model and details of the part or issue.
Full warranty policy WhatsApp support Contact us
Manufacturer cover is provided in addition to your statutory consumer rights.

Description

Serious security for your bicycle, electric bike or motorbike. The Oxford Grinder S1 260mm U-Lock is engineered to resist angle-grinder attacks, pairing a 14mm hardened-steel shackle core with a specialist anti-disc-cutter carbide coating. Its double-locking design secures both ends of the shackle, while the 260mm outer height offers a more compact fit around frames, wheels and close-fitting anchors.

Why choose the Oxford Grinder S1?

  • Sold Secure Diamond: independently certified to both Pedal Cycle Diamond and Powered Cycle Diamond.
  • Anti-angle-grinder protection: Oxford states its carbide coating takes an average of 10 cutting discs to cut through one side under its test conditions; real-world results vary.
  • 14mm hardened-steel shackle: robust square-section core with a protective silicone covering to help prevent scratches.
  • Double-locking mechanism: prevents shackle rotation and requires both sides to be cut to fully remove the lock.
  • Weather-ready details: self-sealing keyway cover helps keep out water and debris.
  • High-security cylinder: disc-detainer mechanism designed to resist picking and drilling.
  • Everyday convenience: supplied with three keys and a carry bracket; Oxford replacement-key service available.

Specifications

  • Model / manufacturer code: Oxford Grinder S1 / LK375
  • Listed size: 14mm × 260mm × 155mm
  • Overall external dimensions: 260mm (H) × 184mm (W)
  • Illustrated internal opening: approx. 188.5mm (H) × 116mm (W)
  • Security rating: Sold Secure Pedal Cycle Diamond and Powered Cycle Diamond
  • Colour: Black

In the box

Oxford Grinder S1 U-lock, 3 keys and carry bracket.

Guarantee: Oxford offers a 10-year manufacturer guarantee against qualifying defects in materials or workmanship; exclusions and terms apply. This does not affect your statutory rights.

Choose an immovable anchor and lock through the frame wherever possible. Always check fit before ordering; no security device is theft-proof.