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Onguard Bulldog Mini U-Lock 90 x 140 x 13 mm

3.3 out of 5 stars 9 customer reviews

RRP: £23.99
Price: £19.63 FREE UK delivery.
You Save: £4.36 (18%)
In stock.
Dispatched from and sold by bikes4life limited.
3 new from £19.62
  • Double bolt locking mechanism
  • Hardened steel shackle
  • Includes multi fit bracket
  • Pick and drill resistant cylinder with rotating dust cover
  • 5 laser cut keys including 1 with led light
  • Protective coating on crossbar and shackle
  • Lifetime warranty against manufacturers defects
  • Free Anti theft guarantee up to £500

Cycling Special with Geraint Thomas Cycling Special with Geraint Thomas

£19.63 FREE UK delivery. In stock. Dispatched from and sold by bikes4life limited.

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Product details

  • Boxed-product Weight: 980 g
  • Delivery Destinations: Visit the Delivery Destinations Help page to see where this item can be delivered.
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  • Item model number: 149171
  • ASIN: B001XURAGI
  • Date first available at Amazon.co.uk: 25 Mar. 2009
  • Average Customer Review: 3.3 out of 5 stars  See all reviews (9 customer reviews)
  • Amazon Bestsellers Rank: 233,430 in Sports & Outdoors (See Top 100 in Sports & Outdoors)

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Customer Questions & Answers

Customer Reviews

Top Customer Reviews

The lock feels solid enough and the mounting seems good - uses a strong fabric-type fixture around the tube rather than plastic with a rubber strip.

The LED light on the key didn't work at all and when I slid the back off found the construction to be pretty poor and the wires connecting the batteries were rusting. Poor stuff. As a previous reviewer put, the supply of 5 keys can only be becuase they seem so cheap and flimsy. Why not supply just 2 decent ones like most other locks?
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I have the LS version, slightly longer, will fit through the wheel and frame and a narrow enough bike stand...just. If you are going to get the ls mini or standard mini its best to make a template and try it with your normal cycle park locking area, the mini is easier to carry about but can limit where you can use it, but getting the extender cable can help if you by that as an extra.
Instructions say not to force the key if its stiff and make sure you keep it oiled, I didn't see a 'dust' cover over the key hole, I think that's the previous model before the yellow plastic ends(it's all rubber/plastic covered to protect your frame a bit more)
With the UK weather being fairly wet it could really do with more protection over the key hole. But it is always a good idea to use an approved oil or lube on your lock, any lock, rather than find one day it's seized up locking your bike in the middle of town!
Certainly the lock of the same name(pre-yellow ends) got very good reviews in bike security tests, the mini d-lock being narrower makes it harder to insert bottle jacks to prize them open, apparently a method used by thieves.
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By BOOZ on 25 Oct. 2012
Verified Purchase
This is a solid looking lock with essential rubber coating all the way round. The keys look high quality and my led light worked. And was only u lock to fit inside bike frame However there are a couple of design flaws. No cover to protect keyhole unforgivable. The yellow rubber ends (can be removed making it a better looking all black lock) slide about and can block the shackles entering their holes, fiddly. Bracket hit and miss good screw connection to frame poor twist connection to u lock, makes placement difficult . Oddly one of my yellow rubber ends had orange permanent markings on it. But the rest looks new enough. How secure is it I hope ill never have to find out.
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Verified Purchase
I was glad to have a lock extensively reviewed for security and reliability. So far, no bicycle theft but

I was reassured by the reviews of the reliability of this product and so far my bicycle has been safe.
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Solid looking mini shackle lock with a high build quality. Keys are plentyful and lightweight but I see that as an advantage. Needs a key to be locked which is a good idea in case you forget your keys. Impressive ratchet mounting mechanism holds the lock solidly to the frame of the bike compared to plastic mounts. Good value for money.
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