Verified Customer Reviews for Mammoth Blast Disc Lock
 Seems OK 
 30 Aug 2025 by Tony P 
I got the bigger of the 2 sizes which was not needed for the disc on the bike i use it on. the whole thing seems robust, but that's only tested when someone has a go at it with a claw hammer. very bright so a visual deterrent. I've knocked a star off because there isn't a tether with it
Helpful?
 Easy to use 
 08 Dec 2022 by Richard J 
Bought 2 of these as they were a good price. Smart in yellow. 3 keys per lock. Easy to use. Fit in pocket, nice little pouch.
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 Does the job I expected it to. 
 16 Apr 2020 by Keith D 
Although it should have fitted the disc width on my bike, it didn't due to residue casting 'flashings' in the slot on the join of the two halves of the casting, which I had to remove by hand filing, then it fitted fine.
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 Mammoth value! 
 31 Oct 2018 by Ashley C 
Sorry.. but it is really good, feels really strong and durable, not too heavy but not so light you doubt the security it provides.
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 A good lock 
 02 Jul 2018 by Marco G 
As an extra lock over night and when popping into town this unit is neat and easy to use.
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 Nice little lock 
 26 Jul 2017 by Anonymous 
Small pin lock good for the front brake disc holes on my Honda CBF 125. The protective cap over the key insert didn't close properly on arrival, but this is a minor nuisance. It's probably not the strongest lock, but it's nice and bright and easy to use. Decent for the price.
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 Solid 
 25 Jul 2017 by Michele B 
Bought in the sale, good price anyway. Solid little lock and easy to use.
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 Serves its purpose 
 15 Jun 2017 by Rihards Z 
Very good little lock. 10mm pin fits nicely on my GSF650S K5 Bandit. Feel a bit safer when going to the city and leaving the bike.
Lock mechanism is fine. I lubed it with a water repelling grease, just to be sure it works even when subjected to rain.
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 Neat little lock 
 13 Nov 2014 by Phillip H 
Neat little lock. Mammoth make really good locks and this little disk lock is great for my little Yamaha YBR125. It has a good finish, nice little carry pouch. Lock mechanism can require a knack but it will do nicely to dissuade opportunist thieves.
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 Cheap and cheerful 
 01 Jan 2013 by Anonymous 
First one I purchased literally fell apart in my hands after two weeks, but Sportsbikeshop replaced it very quickly and the replacement has done its job without issue for the last two months.
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Description
Manufacturer
Mammoth Blast Disc Lock
- Robust zinc alloy body
- Hardened steel pin
- Weatherproof barrel cover
- Storage pouch
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