• Finance Available0% on orders over £300
  • Free UK DeliveryMainland ex H'lands (over £25)
  • 55,000+ Reviewsfrom bikers like you
  • 200+ Top BrandsUK's largest range
  • 365 Day ReturnsRefund or exchange
  • Click & CollectFrom a shop near you

Finance Available

Why wait? We now provide some of the best finance packages around to help spread the cost and get you on the road. We now offer finance on most orders from as little as £280 with 0% packages starting at only £300. The online application process is super simple too and takes around only 5 minutes to complete! The best part is, there's no paperwork to print and in most cases you'll have a decision in under 10 minutes. Just select finance as a payment method and take it from there!

Free UK Delivery

It's really simple, if you spend over £25 with us, delivery is free of charge to any mainland UK address (excluding Islands & Highlands).

55,000+ Reviews

Whilst we know a bit about bikes and bike kit, the best road testers out there are our customers, real bikers, just like you. If you're looking for advice on what to buy, you'll find over 55,000 independent product reviews which we've posted, unedited, for all to see. Whether it's a question about sizing, quality or something else, our customer reviews are quite simply, the best place to start.

200+ Top Brands

There simply isn't a better selection of biking brands anywhere in the UK and we're constantly updating every range to ensure you have the best choice available.

365 Day Returns

We simply don't believe in making the sale and moving on, we want to make sure our customers are happy with their purchase. That's why we now offer a full 365 day returns period. Simply relax, take your time and make sure it's right! All we ask is that you try the items within your own home and return with the tags intact.

Click & Collect

If you can't be around to receive your delivery during the day, just use one of our simple click & collect options. We offer delivery to a shop local to you using both the UPS Access Point network and the DPD Pickup network. Most pick up points are open outside of normal working hours and will keep your package so you can collect at a time to suit you.

Mammoth Security Maxi Disc Lock

Best Seller
in Disc Locks

11mm hardened steel pin disc lock

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Customer Reviews for Mammoth Security Maxi Disc Lock

Mammoth Security Maxi Disc Lock
April 5, 2019

Great Value

Seems a strong sturdy lock. Park in London so need all the locks I can get. This fits through the sprocket easily with just enough space to bolt up over the chain/sprocket combo. Not overly weighty so it wont be painful carrying in a backpack or topbox.. too big for a pocket though (weight wise). Nice touch with the lock hole cover

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Mammoth Security Maxi Disc Lock
May 18, 2018

Great value

Love the padlock, very robust.

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Mammoth Security Maxi Disc Lock
April 15, 2018

Solid lock

Good strong lock. Portable and easily clips under my seat. However, the key can get stuck occasionally and require a fair bit of fiddling to get it to unlock.

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Mammoth Security Maxi Disc Lock
April 13, 2018

The Dogs Bo**ocks . . .

Bought for a Harley Tourer as a visual deterrent to back up the factory alarm system. Large shackle makes it easy to manoeuvre the lock into position. Supplied with four keys. Good, solid lock with smooth locking mechanism,at a competitive price. You can pay a hell of a lot more for a disc lock that won't do much more than this. Highly recommended.

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Mammoth Security Maxi Disc Lock
January 29, 2018

Disappointed, doesnt even fit around my disc

Got a Honda CB125F and this disc lock doesn't fit it. Also there is limited space in between in to get two bits of a chain link in.

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Mammoth Security Maxi Disc Lock
January 19, 2018

Not up to scratch

Bought this as a gift for my son but was disappointed that the lock was faulty and would not open at all. Returned and replaced immediately by shop but replacement just as bad. Must be a faulty batch as see other reviews are good. Am returning for a refund. Service from shop absolutely faultless though. Would give them 5 stars without doubt.

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Mammoth Security Maxi Disc Lock
December 11, 2017

Good value, seems strong

This is decent value. It seems strong and sturdy. I chose this as it is one of the few disc locks that will fit my older Ducatis. I don't know how it will stand up to a sledgehammer, hopefully I'll never find out! It's a good visual deterrent though. As usual service from Sportsbikeshop was superb. Delivered in 48hrs. Cracking price.

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Mammoth Security Maxi Disc Lock
September 1, 2017

Highly visible and great value

Not the heaviest disc lock of this type that I've come across. This one looks more substantial than it probably is, making it a great visual deterrent and meaning there's no excuse not to carry it and use it. However, it's very cheap compared to alternatives which makes it a great value supplement to other security devices I use.

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Mammoth Security Maxi Disc Lock
June 13, 2017

Good bit of kit

Brilliant bit of kit, has the bright yellow to say 'oi thieves better back off m8' and looks and feels like the bike is secure! As much as I love this brands security I wished they changed the colour of the keys. I have one of their lock and chain and it's the same colour so it's always the luck of the draw when choosing which key would fit. Pretty happy with the product! Bikes not been stolen so it must be doing something!

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Mammoth Security Maxi Disc Lock
June 2, 2017

Bigger than it looks

Could be too big to fit within the rim of some wheels. Good aspect of this lock is that it can be also be used as a padlock with a chain.

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Mammoth Security Maxi Disc Lock

  • 11mm hardened steel pin
  • Tapered design for improved disc access
  • Hinged barrel cover

Mammoth Security

Mammoth and Thatcham rated security, utilising the best materials and components available, the Mammoth range provides security solutions for all motorcycle and scooter needs.

See all Mammoth Security products
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