Riderr Micro Lock review | Mini disc lock destruction tested

Date reviewed: December 2025 | Tested by: John Milbank | Price: £34.99 (RRP) | Weight: 335g | riderr.co.uk

The Riderr Micro Lock on review here is a compact and relatively lightweight disc-lock that can be used on most motorcycle AND scooter discs due to its smaller locking pin.

It’s supplied with three keys and has a simple push-to-lock mechanism that makes it quick and easy to use.

Smaller locks like this tend to be easier to attack, but our independent testing showed it to have a surprising level of performance…

Pros & Cons

Size and weight

Made of stainless steel, the Riderr Micro Lock weighs just 335g and should tuck easily away somewhere under the seat of most motorbikes. I’d never recommend carrying any locks in a pocket due to the risk of injury if you fell off, but the Riderr is very small so you should be able to find somewhere to stow it.

The 5.98mm diameter locking pin is smaller than I’d recommend for motorcycle use, but it’s all that’s suitable for many scooters (and some smaller bikes like the Honda MSX125/Grom) due to the pin’s ability to secure through a vent hole in the disc.

Resistance to attack: lock picking

While some YouTube channels might make lock picking look easy, especially when selling the creator’s own tools, it’s not a theft method used in typical motorcycle thefts at all. Specialist tools are increasingly made available to the public, but it’s in the interest of these creators to portray them as simple to use. The fact is that UK motorcycle thieves are not spending the time and effort on lock picking.

To see how this compares with the other locks we’ve tested, check out our best motorcycle locks for home and away.

Resistance to attack: drill

The Riderr Micro Lock was surprisingly resistant to a drill attack, the hard discs in the keyway causing my drill bit to skim over them.

To see how this compares with the other locks we’ve tested, check out our best motorcycle locks for home and away.

Resistance to attack: prying & splitting

Small disc locks like this can be vulnerable to prying due to the relative lack of material in the body and the fact that the pin doesn’t tie into the base.

Using a claw hammer I was able to make some progress distorting the Riderr Micro Lock’s body, but it wasn’t until I resorted to a 2ft pry bar that I could – with a fair amount of effort – bend it enough to get it off the brake disc.

Given the ease with which some small locks can be removed this waym, the stainless-steel construction held up very well. The Micro Lock can be quietly pried off, but it requires far more leverage than most devices like this.

To see how this compares with the other locks we’ve tested, check out our best motorcycle locks for home and away.

Resistance to attack: lump hammer

A brute-force attack with a hefty hammer (or even a rock) can remove many small disc locks like this with relative ease, but to my surprise a sustained and intensive attack with a lump hammer did nothing more than dent the body of the Riderr Micro Lock.

To see how this compares with the other locks we’ve tested, check out our best motorcycle locks for home and away.

Resistance to attack: reciprocating saw

Due to destroying both of the test locks before being able to carry out a reciprocating saw attack, this test wasn’t part of the Riderr Micro Lock’s review. A reciprocating saw (or Sawzall as the Americans like to call them) is a very unlikely tool in motorcycle theft as it lacks the all-round versatility of an angle-grinder.

However, they can have an advantage when attempting to attack a disc-lock’s locking pin, and a quality carbide-tipped blade would be able to get through this 6mm pin reasonably quickly. Fortunately, that’s unlikely to happen.

To see how this compares with the other locks we’ve tested, check out our best motorcycle locks for home and away.

Resistance to attack: angle-grinder

The most common and likely angle-grinder attack beat the Riderr Micro Lock, but it still took longer than cutting a lightweight portable chain: a good result for something this small.

What’s most important to understand is that the Micro Lock has the same vulnerability as most other disc-locks in that the disc itself can be cut. A thief won’t always do this as the disk can warp slightly and jam against the caliper (preventing a push-away), and depending on the intended use the criminal may not want to destroy the disc.

The point is that the Riderr Micro Lock is notably harder to cut than the disc itself.

To see how this compares with the other locks we’ve tested, check out our best motorcycle locks for home and away.

Bennetts BikeSocial test results

Product: Riderr Micro Lock

Weight as tested: 335g

Drill attack: PASS

Lump hammer attack: PASS

Prying / splitting attack attack: AVERAGE

Angle grinder attack: AVERAGE

To see the other chains and locks tested by Bennetts BikeSocial, click here and be sure to regularly check for the discounts available through BikeSocial membership.

Riderr Micro Lock review: Verdict

The Riderr Micro Lock is far harder to beat than a lot of similarly-sized devices. Sure, it’s not impenetrable but it offers a good level of protection for its size and weight.

Data from Bennetts motorcycle insurance shows that using even a basic disc-lock can reduce the chance of having your bike stolen by a factor of three (heavy-duty security can make less than 1 in 1000), so given the price and portability of the Riderr Micro Lock there’s really no excuse not to add some extra peace of mind when parking up.

For the best motorcycle security, do check out our in-depth and unbiased library of tests, including our guide to the very best motorcycle locks.

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