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RoundLock Padlock

**COVID-19 Lockdown: We are unable to accept any visitors into our building due to COVID restrictions. *No exceptions** Please see our News page for more details.

Stock Position: We have replenished stock on virtually all products, although RoundLocks and DIB D-Locks will likely be in short supply until a large batch becomes available, late November.

RoundLock Padlock
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RoundLock Padlock

Discounts Apply !
  •    Info
  •    Tech
  •    Video
  •     Reviews

Our custom-made SecurityForBikes RL21 RoundLock super-compact padlock. Sold Secure Motorcycle Gold/Quad & ATV Gold/Bicycle Gold/Motor Scooter Gold approved with any appropriately-approved chain and also on its own (e.g. as a disc lock).

The RoundLock is lighter and a lot more compact than the Squire SS65CS whilst offering similar security at a much cheaper price. Note that this is a 2-part lock where the top section comes out completely and is then re-inserted sideways through the chain and into the female lock receiver. It may be slightly harder to use than the SS65CS as a result (although you typically need 2 hands to fit that lock to a chain as well).

Disc detainer anti-pick cylinder with 9 discs, protected by rotating anti-drill hardened alloy steel plate.

3 keys supplied.

Keyed-alike available at initial order only (not available retrospectively) when ordering more than one lock together, and only amongst other RL21(A) locks and/or DIB-Series D-Locks. These locks can't be keyed-alike with any of the Squire locks.

Very compact and a perfect partner for Protector 16mm chains at a great price! Not suitable for our 19mm chain unless the optional extra RL21A socket is also purchased and that is used in place of the standard RL21 socket.

The RL21 can sometimes be used with our Protector 13mm chains - it's a close fit and the manufacturing tolerance on the chains can make-or-break the idea of the combination. Check to see if we have the corresponding Package Deal available - if it shows as available to order then we have a batch of chain that fits the RoundLock!

This lock can also be used as a motorcycle disc lock - Check that you have a suitable opening that will take the 21mm diameter shackle in your brake disc or disc carrier. You can then use this with a chain when at home and as a disc lock when out and about.

The RoundLock is generally not suitable for 11mm (or, sometimes, 13mm) chains or for use with hasps, padbars, etc.

The lock body is 40mm diameter and in the locked position it measures approximately 77mm long overall. That excludes the the plastic cap at approximately 6mm thick.

21mm diameter shackle.

Weight: 0.55kg

Click for more technical information on the RoundLock.

Below is a short video overview of the SFB RoundLock, showing how it can be used with our Protector 16mm and 13mm chains and, with the optional RL21A socket, with the 19mm chains:

 
57 Product Reviews - Average rating 4.9 / 5 (Click here to expand and to show more reviews)

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Very Pleased with Service and Products!!

- 30/10/2020

These guys take security very seriously, know their products and are willing to advise to make sure the customer gets best option for the application/s .... my order has included Noose Chains, Round Locks & Dib Locks all keyed alike ... SFB have been happ...

Round lock

- 24/10/2020

My MT07 was recently stolen so upgrading security for my next bike. This has consistently been recommended as one of the best disc locks you can buy - I’ll be investing in their chains too. You’ll have to Houdini to steal my freaking bike!

RoundLock Padlock

- 27/09/2020

Perfect, hard to use bolt cutters on it not easy to pick in public i expect, just check it will fit your disc first or it makes an excellent lock for a chain.Fast delivery.

Excellent lock but check fitment before buying

- 27/09/2020

Excellent sturdy, easily transported lock. Fast delivery and very good communication from the seller. Unfortunately it seems to incompatible with most of my bikes, I bought it to secure my 1978 kawasaki z650 but it wound not fit in the hole in the disc or...

Great lock for the price

- 22/09/2020

The disk lock is heavy duty and fits the disc perfect. For the price it’s a bargain Oh and fast delivery as well.

Excellent service


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Price (inc VAT): £39.95

 

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