OnGuard Bulldog Lock Shackle Combo U-Lock
115 x 230 x 13MM Dispatched within 1-3 days ID: 61155-177284
£36.29 Add to basket

OnGuard Bulldog Lock Shackle Combo U-Lock reviews verified by reevooReevoo

Ease of installation
Ease of use
Value for money
Overall rating
Scores 7.0 out of 10 based on 5 reviews
7 out of 10


Kent GB
Simple security with no need to carry around a key. It may not survive a dedicated attack, but for the opportunist thief it should make them move onto an easy target.
A little to much plastic used, but hard to fault at the price.
Confirmed purchase: 17 July 2016
Published on: 07 September 2016
2 out of 10

Confirmed purchaser

lock arrived without instruction abd was unable to unlock the lock rang the company and arranged a return
this lock is more for a motorbike
not a bicycle
Confirmed purchase: 30 June 2016
Published on: 22 July 2016
10 out of 10


Cambridge GB Fed up with lost
Bought for my daughter so not used myself but she says it is very good, this after losing keys to several other locks. (Picture me using portable angle grinder to cut the last lock outside Mile End Station, London in broad daylight - lots of funny looks from public, but no police luckily).

Can't lose key to this one, unless her memory goes.
Reviewer left no comment
Confirmed purchase: 15 December 2014
Published on: 08 February 2015

What are the delivery costs?

We offer Free UK Delivery on all orders.

Including: Channel Islands, Isle of Man, Isle of Wight, Northern Ireland, Scottish Highlands and Scottish Islands.

Standard delivery is normally 2 - 5 working days.

International delivery costs and delivery times vary for different countries. Please see here for more information.

Christmas delivery

For guaranteed Christmas delivery please order bikes before 11am, Tuesday 20th December and all other items before 11am, Wednesday 21st December. Guaranteed Christmas delivery applies to all items with the icon, please choose your option/size to see if the specific item you are after qualifies for Christmas delivery.

A popular shackle length with X2P Double Bolt protection combined with improved user settable steel ball click-combo lock system. OnGuard’s bestselling U-locks featuring best-in-class X2P Double Bolt lock mechanisms and super strong 13mm (0.51”) hardened steel shackles for a full circle of protection. 4 number combination to be set by user (instructions included)

Shackle dimensions: 115mm x 230mm x 13mm (W x H x Diam)

Key Features:

  • X2P Double Bolt Locking Mechanism locks shackle on both sides
  • NEW Z-Cylinder is bump-proof and resists picking, pulling or drilling
  • Hefty 13mm (0.51”) hardened steel shackle resists cutting, prying and jacking
  • Rounded design and centred keyway eliminates pry points
  • Double rubber coated crossbar cover protects paint and finishes
  • Extra thick moulded end caps protects against bumps and hits