OnGuard RockSolid U-Lock

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  • Virtually impervious to angle grinder attacks
  • Sold Secure Diamond protection
  • 5 keys included
Stock Status:
Stock due soon - order now for despatch in 21 days

Secure your bike with the OnGuard RockSolid U-Lock, an innovation in theft protection. This lock stands out with its unique resistance to angle grinders. Designed using a proprietary blend of ultra high-strength materials, it offers unmatched security. Its fortified structure is crafted to withstand even the most determined theft attempts. With the OnGuard RockSolid, enjoy unparalleled peace of mind.

Key Features and Benefits:

  • Proprietary ultra high-strength materials: These materials ensure the lock is virtually impervious to angle grinder attacks, offering a level of security that lets you leave your bike unattended with confidence.
  • Multi-layered defence system: This system enhances the lock's resistance to cutting, protecting your bike against brute force attacks and ensuring it remains safe in high-risk areas.
  • Hardened, shrouded shackle: Specifically designed to resist aggressive cutting attempts, this shackle guarantees your bike's security in urban environments where bike theft is common.
  • Ergonomic design: Despite its robust security features, the lock is surprisingly easy to handle and operate, making it convenient for daily use without compromising on safety.
  • Lightweight construction: Being the lightest angle grinder resistant lock on the market, it provides exceptional security without adding unnecessary weight to your ride.

The main outcome bike owners seek is uncompromising security for their valued bicycles. The OnGuard RockSolid U-Lock delivers precisely that, with its innovative design and materials specifically chosen for their strength and resistance to theft. This lock not only deters thieves but also provides a seamless user experience, proving that top-tier security can go hand-in-hand with convenience.

Choose the OnGuard RockSolid U-Lock for ultimate bike protection. Its superior design and materials offer peace of mind in any setting. Secure your bike today with confidence, knowing you're protected by the best in the business.


  • Dimensions: 90x175x14mm (WxHxD)
  • Keys: 5 keys included


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Our Payment Options

Maestro Mastercard Visa PayPal V12 Retail Finance

Online we currently accept payment from the methods listed above including a wide range of finance options. In store we also accept payment in the form of cash and gift vouchers.

Finance Options

In order to get the kit you want, when you need it, without ruining the family finances we offer a highly flexible range of finance options to help you get the best products on your bike now rather than at the end of the season when you've saved up the cash to make the purchase. There are even interest free options which effectively spread the cost without costing you any extra.

D.T.(Automotives) Limited T/A Tweeks Cycles is authorised and regulated by the Financial Conduct Authority and is the broker and not the lender. Our FCA registration number is 689896. D.T.(Automotives) Limited offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance and Klarna. Credit is provided subject to affordability, age and status. Minimum spend applies. Not all products offered by Secure Trust Bank PLC are regulated by the Financial Conduct Authority.

Delivery & Returns

UK Mainland Delivery Prices

Delivery Type Cost Estimated Delivery Time
Standard Delivery for orders under £49.99 from £1.33 2-3 working days from day of despatch(Excludes weekends and Bank Holidays)
Standard Delivery for orders over £49.99 Free
Express Delivery from £1.68 1-2 working days from day of despatch(Excludes weekends and Bank Holidays)
Special Delivery from £12.54 For any next working day delivery order before 4pm Monday to Thursday.
For any weekend delivery order before 4pm Friday
Click & Collect from £7.62 Collect your parcel from a local post office. 2-3 working days from day of despatch(Excludes weekends and Bank Holidays)

For international shipping please visit our delivery page.

For information about returning an item please visit our returns page.