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Mammoth Security Bolt-In Ground Anchor

Sold Secure Gold approved ground anchor

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Verified Customer Reviews for Mammoth Security Bolt-In Ground Anchor

75 reviews
26 November 2023 by Anonymous
Installed in my garage to have something secure to lock to. Feels rock solid, think anything more would be overkill for me
Would stop a boat ..
14 November 2023 by Nigel C
Easy to fit, this anchor was worth every penny. Hope it is enough of a deterrent
Good quality anchor
01 October 2023 by Alison W
Very well made anchor, easy to install. I'd have given it 5 stars but for the anchor bolts that go in the ground. Very flimsy and ended up replacing them with others from Screwfix.
Solid Deterrent
25 August 2023 by Mark G
Well made, sturdy ground anchor that has pretty impressive lock down bolts. Well worth the money for the peace of mind.
As ever SBS handle everything quickly and without fuss, ideal.
Very sturdy.
16 August 2023 by Anonymous
It appears to be well made and bolted down to the ground well, a little bit of reassurance.
Very solid
20 July 2023 by Tom M
Rock solid bolted into the ground. I've never tried to steal a bike(!), but I imagine (and hope) that this would give you some serious trouble doing so.
Solid and gives great peace of mind
08 July 2023 by Anonymous
Very sturdy and solid anchor that is impossible to move once fitted. Offers great peace of mind - thank you!
Solid & sturdy
01 July 2023 by Ian S
I definitely recommend this product for every person who is looking for an extra security for their motorbike. I wanted something that would put any potential thief off trying to take my motorbike and which would be accepted by the insurance company.
Ground anchor
01 July 2023 by Wiltshirelad
Great anchor, let down by the poor quality securing bolts. Had to purchase 4 more from Screwfix to complete the job. The fixings that came with the anchor fell apart when dropped in the holes drilled and had to re-drill them again.
Seriously solid
18 June 2023 by Tricia H
Worth every penny. Seriously solid and well made and design. Very heavy and has a double thick layer so if the thief wants the bike they'll have to angle grind through two layers of steel.
Everything comes in the box except the drill bit, you'll need a 16mm masonry but and a heavy duty drill. My cordless drill was nowhere near powerful enough to drill into the concrete.
It also comes with ball bearings to hammer into the top of the bolts rendering them useless so the thief can't undo them, as extra security I would recommend some liquid metal squirted in just to finish.
I definitely recommend this product and a great delivery time from Sportsbikeshop.
Good value
12 May 2018 by Dominic
Good sturdy anchor at a decent price, careful when using the plugs as they can fall to pieces quite easily if forced into the hole. Mounted mine onto a brick wall as the concrete on the floor wasn't thick enough, solid as a rock and now keeps the chain off the floor too!
Good sturdy anchor
13 February 2018 by Anonymous
Chunky substantial ground anchor, well made and straightforward to fit.
Good delivery and communication from Sportsbikeshop.
Excellent security product
30 January 2018 by Paul W
Very robust and instant deterrent. Easy to fit with additional security for anchor bolts to prevent removal. Price from Sportsbikeshop was below competitors for identical product. Delivery was next day at no extra cost.
Top quality
10 January 2018 by Si
Great product with useful filling instructions. It isn't going anywhere.
Top notch product
12 December 2017 by Anonymous
Just what I wanted (and the insurer ). Great service from Sportsbikeshop again supplying a top notch product at good price and quick free delivery. Insurance recommended so gets me a discount and peace of mind.
Good solid piece kit
04 December 2017 by Darren
Impressed, seems absolutely solid, was a doddle to install. I am happier and have a greater piece of mind knowing I've installed an Anchor of such quality.
(Great price, good delivery, excellent product).
Great product, recommend
16 November 2017 by Steven O
Big heavy piece of steel that would take ages to get through to rob your bike. Highly recommended.
Perfect service
13 November 2017 by Leo.
I ordered the product and the next day it was in front of my door the time they said, amazing job by the Sportsbikeshop as I expected.
The product was the same as the picture in the site
Very good quality ground anchor, a bit heavy which is good, and does the job. I have a 16 mm chain so the mammoth anchor is perfect.

Mammoth Security Bolt-In Ground Anchor

  • Heavy-Duty ground anchor
  • Simply bolts into concrete surface
  • Ball bearings supplied to hammer into bolt heads rendering impossible to remove
  • Manufactured from hardened steel
  • Twin layer design feature, increases protection
  • Suitable for outdoor and indoor use

This MAMMOTH security product has been tested to SOLD SECURE MOTORCYCLE GOLD grade. This ensures that the product has been independently tested to resist determined attacks by thieves. SOLD SECURE products are recognised by insurers who offer reduced premiums for users of these products.


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.

Questions and Answers

Questions and Answers

  • Will a 19 mm chain fit through this anchor?

    January 17, 2018

    If you take the measurements of your chain, the measurements of the ground anchor are below - The dimensions inside the inner clasp where the chain will be located are approximately as follows: Height from top of base to underneath of clasp = 45mm. Width of clasp opening at base = 85mm. Width of clasp opening at top (beneath clasp)= 50mm.

  • What is the diameter of the plate that is fixed to the concrete?

    September 27, 2017

    The diameter of the base is around 7inches.

  • Are the fixings/bolts supplied with this item?

    February 16, 2013

    This item is supplied with all the fixings needed to install it.

  • What size drill bit is needed to attach it to a concrete floor?

    August 13, 2012

    The drill bit required is 16mm plus probably a smaller size for a pilot hole.

  • Can you attach the anchor to a brick wall?

    May 16, 2012

    It may be possible to locate the ground anchor to a wall depending on condition and size of brick work. For security, the anchor bolts would need to be located into the brick as opposed to the cement work.

  • What is the biggest chain this will take?

    May 3, 2012

    The dimensions inside the inner clasp where the chain will be located are approximately as follows: Height from top of base to underneath of clasp = 45mm. Width of clasp opening at base = 85mm. Width of clasp opening at top (beneath clasp)= 50mm.

  • I am searching for a great outdoor security post/anchor, and just don't understand how these will work - could thieves not just unbolt the anchor from the ground??

    August 25, 2011

    The ground anchors are supplied with hardened steel ball bearings. Once the bolts are secured to the ground, the balls bearings are tapped into the screw head preventing access by allen key etc. Some models of anchors have further inserts which tap in to an undercut directly above where the screw is located.

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