Reddit mentions of ONGUARD Pitbull DT-8005 Keyed Shackle Lock - Black, 11.5x23.0 cm

I got this for myself to replace the Kryptonite series 2 I was using...

https://www.amazon.co.uk/gp/product/B008QTKVO2/
'On-Guard 8005 Pitbull'

Apparently SoldSecure Gold rated...

Nice one! I go to uni in Aberdeen. On a gap year at the minute though. It's certainly an... interesting city to ride in. I got on fine with a road bike, but I'd say;

• Get a road bike if you think you might get into doing longer rides for fitness or leisure. But think about fitting 28c tyres or even 30c/32c tyres if there's clearance for them, the extra width will help on the cobbles.
  
• Get a mountain bike if you think you might get into trail riding and aren't going to spend much over an hour a day commuting around the city.
  
• Think about getting a hybrid if you aren't sure/want to do a bit of both. Straight forks are a lot more efficient on the road, but they still have very wide tyre clearances for comfort and uneven terrain handling.
  
• Absolutely, 100% budget for a decent U lock and learn how to use it. Eg;
  
  https://www.amazon.co.uk/Guard-8005-Pitbull-Keyed-Shackle/dp/B008QTKVO2?ie=UTF8&redirect=true&tag=ho01f-21
  
  or
  
  http://www.fatbirds.co.uk/479896/products/kryptonite-kryptolok-series-2-std-u-lock-with-4-foot-kryptoflex-cable.aspx
  
  Even so, you want to minimise the amount of time your bike is out in public as far as possible. Bike theft is ripe in Aberdeen, don't make it easy for them. I had a nice mountain bike stolen from the middle of campus.
  
  If you're at UoA, there's both a road cycling society and a mountain biking society, might be worth getting in touch with them to see if they have any advice or good local offers or anything. There's also becycle, the cooperative on the high street which is great if you ever need to do any mechanical work and don't have the tools or knowledge.

Yep that is solid!
If you didnt want to carry a cable, locking skewers are always an option if you have quick release wheels.


These 2 are also solid options aswell and cheaper.
I use an Onguard pitbull.

If you already have a cable (or dont want to cary one)
OnGuard Brute

If you don't have a cable
Onguard Pitbull