Kryptonite Evolution Mini-7 Review: Sold Secure Gold, a Small Shackle and a £1,500 Offer
A US test lab that attacked it with bolt cutters, saws and an angle grinder, a specialist lock reviewer and a small set of UK buyers agree on the Mini-7: a properly secure, carryable D-lock for bike racks, with a cable that is there for your wheel rather than for thieves. The figures that decide whether your insurer will accept it, and whether Kryptonite’s theft offer is worth registering for, are below.
Where the reviews line up
Our three sources are a hands-on attack test by OutdoorGearLab, which scored it 61/100 and timed an angle grinder through it; a long-form review on the specialist site TheBestBikeLock.com; and the buyer ratings at UK shops Biketart and Tweeks Cycles, which are real but few. Behind them sit the two documents that matter most in Britain: Sold Secure’s own listing and Kryptonite’s product page.
Three things come up everywhere. The D-lock itself is hard to beat with hand tools: OutdoorGearLab’s bolt cutters, hacksaw, tin snips and hammer all failed on the shackle. The double deadbolt matters — the 13 mm shackle locks into the crossbar at both ends, so a thief has to cut it twice. And the cable is the weak point: both reviewers say it goes in seconds, and Sold Secure says in writing that the cable is not part of its approval.
The honest caveats are size and power tools. At 8.3 × 17.8 cm inside, it fits a bike rack and a frame tube but not a thick lamppost, and TheBestBikeLock.com calls it “a bike rack lock”. And an angle grinder took OutdoorGearLab 18 seconds, with two cuts. That is true of almost every portable D-lock; it is why Sold Secure now has a Diamond tier above this lock’s Gold.
The buying decision is about what your insurer asks for. Sold Secure Gold is the level many UK cycle policies ask for, and at £43–£75 the Mini-7 is one of the cheaper ways to meet it. If your policy, or your street, calls for Diamond, this is not that lock.
The three reviews this summary is built from
- OutdoorGearLabEditorial attack test by Joshua Hutchens, updated 11 February 2026. 61/100, 14th of 23 locks; angle grinder timed.
- TheBestBikeLock.comSpecialist lock review by Carl Ellis, last updated 4 April 2024. Hands-on, no timed cutting.
- Biketart & Tweeks Cycles4.8/5 from 6 buyer reviews at Biketart; 7 reviews at Tweeks, 4 Oct 2026. Too few to lean on.
Before the review: which Mini-7 is this?
This page covers the Kryptonite New-U Evolution Mini-7 with 4’ Flex cable, product code 002079 (sold in the UK by Madison as GK002079). It was still listed on Kryptonite’s site with no discontinuation notice, and in stock at Tweeks Cycles and Biketart, on 4 October 2026. It is not the KryptoLok Mini-7, a separate model in Kryptonite’s range, and not the Evolution LITE Mini-6. Listings and videos mix the names up — one lock-picking video that appears in searches for this lock is titled as the KryptoLok Mini-7.
Specification at a glance
| Spec | Figure | Confidence |
|---|---|---|
| Sold Secure rating | Gold, Pedal Cycle category, D-lock. The cable is not part of the approval | Sold Secure’s own product listing |
| Where Gold sits | Bronze, Silver, Gold, then Diamond at the top | BikeRadar guide, January 2026. One UK retailer wrongly calls Gold the highest |
| Other ratings | Kryptonite’s own scale: 7 out of 10. Also ART (Dutch) approved — 2 of 5 stars per TheBestBikeLock.com; Vårefakta; SSF | Kryptonite product page; ART star level from the specialist review |
| Shackle | 13 mm hardened steel, double deadbolt into the crossbar | Kryptonite, Sold Secure, every retailer |
| Internal size | 8.3 × 17.8 cm (3.25 × 7 in) | Kryptonite and Sold Secure. Freewheel lists 235 × 155 × 35 mm, which we cannot reconcile |
| Weight | 1.61 kg quoted; 3.1 lb (about 1.41 kg) measured | Kryptonite’s figure; OutdoorGearLab’s weight. Nobody says clearly whether the cable is included |
| Cable | KryptoFlex double-loop, 120 cm × 10 mm | Freewheel and Tweeks |
| Keys | 3 stainless steel keys, one with a replaceable LED fob; sliding keyhole cover | Kryptonite; Tweeks |
| Carrying | FlexFrame-U frame bracket included | Kryptonite; retailers |
| Anti-Theft Protection Offer | Up to £1,500 in the UK; cable not covered | Kryptonite product page. Terms below |
| Police scheme | Secured by Design “Police Preferred Specification” | Stated by Tweeks and Biketart; we did not find it on Secured by Design’s site |
| Warranty | Limited lifetime, original user only, defects in materials and workmanship | Kryptonite insert |
| Price | RRP £74.99; £42.95 at Biketart, £52.49 at Tweeks, £74.99 at Freewheel | All checked 4 October 2026 |
OutdoorGearLab
OutdoorGearLab is a US site, so it does not test to Sold Secure, but it does what UK magazines rarely do: it attacks the locks. The Mini-7’s shackle survived bolt cutters, a hacksaw, tin snips and a hammer. The angle grinder got through in 18 seconds, and needed two cuts — that second cut is the double deadbolt doing its job, because a single cut leaves the shackle held at the other end. The cable did not survive the bolt cutters.
Its scores explain the middling 61: security 6 out of 10, ease of use 7, ease of parking 6 and ease of transport 5.5. The reviewer measured the lock at 3.1 lb, lighter than the 1.61 kg Kryptonite and Sold Secure quote. His verdict is that, used properly, the combination gives “a solid medium level of security without being difficult to carry”, aimed at riders in low- to medium-risk areas making several short stops a day. His main complaint is the size: the small shackle makes some posts and racks a puzzle.
Watch: Kryptonite Evolution Mini 7 geknackt - Bügelschloss - TEST Fahrradschlösser
A German-language lock test whose title says the Mini-7 was cracked. We could not open it to see which tool was used, so treat it as a companion to OutdoorGearLab’s grinder result, not as a second timed test.
Watch on YouTube ↗TheBestBikeLock.com
This is a single-author specialist site that reviews nothing but locks. Its review does not include timed cutting, and it earns affiliate income from links, but it is the most careful description of the mechanism we found. Ellis explains the double deadbolt — the shackle locks into the crossbar on both sides — and the two extra “bumps” that give four anchor points to resist twisting the shackle round. He likes the LED key light and the sliding cover over the keyhole, and quotes the ratings as Sold Secure Gold, Kryptonite 7/10 and ART 2 stars.
He is blunt about two things. A 13 mm shackle is not truly bolt-cutter proof: it can be cut with big enough cutters if the thief can brace them on the ground, which is one reason to lock it high. And the included cable “can be snipped through in seconds”. His summary is that the Mini-7 is “a bike rack lock” — excellent on a Sheffield stand, awkward on most street furniture — and “a cracking lock” if that is how you park.
Watch: Kryptonite Evolution Mini 7 New U Review
A video review of this exact New-U Evolution Mini-7. Useful for seeing how small the shackle really is against a frame and a stand.
Watch on YouTube ↗Biketart and Tweeks Cycles
These are UK buyers, on pages that sell the lock, and there are only thirteen of them between the two shops. We include them because they are the only UK owner feedback with a count that we could find, not because thirteen reviews prove anything. Biketart’s six give 4.8 out of 5 and all six would recommend it; Tweeks shows seven reviews that praise the balance of security and weight.
The comments are practical. Buyers call it easy to use and good value, and the criticisms are small but telling: one wishes the cable were longer, and another thinks the frame bracket could be better. Nobody reports a theft, and with a sample this small nobody would be expected to. Both shops repeat Kryptonite’s spec and add a claim we could not confirm at source: that the lock carries Secured by Design’s Police Preferred Specification.
Watch: Kryptonite Evolution Mini 7 Lock Review, Excellent CABLE COMBO Bike Lock
An owner-style review of the lock and cable combination, which is the version UK shops sell. Watch how the cable loops through the wheel — that is its only real job.
Watch on YouTube ↗The insurance question
Most UK cycle insurers name a lock standard rather than a brand, and the standard is Sold Secure. ETA, for example, says you must use “a Sold Secure lock with a rating of either Silver or Gold, depending on the value of the bicycle”, but does not publish the value thresholds. The Mini-7 is listed by Sold Secure itself at Gold, so it meets any policy that asks for Silver or Gold. It does not meet a policy that asks for Diamond. Two things to check before you rely on it: read your own policy wording for the level and the value limit, and keep proof of purchase, because insurers may ask which lock you used.
Do not be thrown by listings. One Halfords web address for this lock still says “sold secure silver” while another says gold; Sold Secure’s own listing is the one that counts. And the Gold rating covers the D-lock only. Locking the bike with the cable alone would not meet a Gold requirement.
Kryptonite’s Anti-Theft Protection Offer in the UK
Kryptonite’s product page puts the offer on this lock at up to £1,500 for a bicycle in the UK, and says it does not cover the cable. Kryptonite’s terms document lists the UK as eligible, with mail registrations handled by Madison Cycles. The main conditions, as Kryptonite publishes them:
- You must register. Kryptonite’s terms document says within 15 days of purchase; the insert packed with its U-locks says 30 days. Register in the first fortnight and both are met.
- Cover lasts one year from Kryptonite receiving your registration. The extension option is described for US and Canadian residents only.
- It pays only if the lock was opened or broken by force. You must hand over the broken lock. Attempted thefts, recovered bikes, accessories, e-bike batteries, vandalism and thefts where the thing you locked to was cut or dismantled are not covered.
- Deadlines are tight: a police report within 72 hours, notice to Kryptonite within 7 days and all paperwork, including both receipts, within 90 days.
- The payment is limited by the bike’s base cost (excluding tax and accessories) and, if you are insured, is tied to your insurance excess. It is not a substitute for insurance.
- Thefts outside the country where you registered the lock are not covered.
The key safe programme
Each lock has a key number. Register it on Kryptonite’s website and, according to Kryptonite’s insert, the first pair of replacement keys costs only a flat shipping charge of US$6.95. A 2020–21 thread on the UK forum Singletrack (9 replies) records a rider getting two keys free after sending Kryptonite the lock code and photos, with a quoted turnaround of 10 to 14 days. Write the key number down somewhere other than the key fob.
Strengths and weak points
What holds up
- Sold Secure Gold, on Sold Secure’s own listing, for £43–£75.
- Shackle resisted bolt cutters, hacksaw, tin snips and a hammer in OutdoorGearLab’s test.
- Double deadbolt means a grinder has to cut twice.
- About 1.4–1.6 kg, light enough to carry daily, with a frame bracket.
- Key registration, a lifetime warranty and a theft offer of up to £1,500.
- LED key light and a keyhole cover are small touches owners notice.
What people complain about
- An angle grinder took 18 seconds. That is true of most portable D-locks, but it is the reality.
- The small 8.3 × 17.8 cm shape fits racks and frames, not thick posts.
- The cable is cut in seconds and is not covered by Sold Secure or the theft offer.
- Gold, not Diamond — not enough for a policy or a street that needs the top tier.
- The theft offer has strict deadlines and lasts one year.
- Some buyers find the cable short and the bracket so-so.
Who it actually suits
Buy it if you lock to Sheffield stands or bike racks, your insurer asks for Sold Secure Silver or Gold, and you want a lock you will actually carry every day. At the discounted prices around now it is one of the cheapest routes to a Gold-rated D-lock from a major brand. Register the key number and the theft offer the day you buy it.
Look elsewhere if you often lock to lampposts or thick railings, if your bike is expensive enough that your insurer wants Diamond, or if you leave it overnight in a high-theft area. There, a Diamond-rated lock, or two locks, makes more sense than any single Gold D-lock.
What we could not check
- The three videos were confirmed by search listing, not by opening them. YouTube would not load through our connection. Each watch link and title appeared in two differently worded searches, but no listing named the channels, so we cannot tell you who made them or when.
- The weight. Kryptonite and Sold Secure say 1.61 kg; OutdoorGearLab measured 3.1 lb (about 1.41 kg). TheBestBikeLock.com says 1.61 kg includes the cable; Kryptonite does not say.
- Freewheel’s internal dimensions of 235 × 155 × 35 mm do not match the 8.3 × 17.8 cm from Kryptonite and Sold Secure. We have used the manufacturer’s figure.
- The registration deadline for the theft offer. Kryptonite’s own documents say 15 days in one place and 30 in another.
- The exact payout rule. Kryptonite’s terms link the payment to the bike’s base cost and your insurance excess; we could not confirm how that works in a UK claim.
- Insurer thresholds. ETA requires Silver or Gold by bike value but does not publish the values. We did not check every UK insurer.
- Secured by Design status. Retailers claim it; we did not find the listing on Secured by Design’s site.
- The ART star level. Kryptonite lists ART approval; the 2-star level comes from TheBestBikeLock.com.
- A UK editorial test. We found no current road.cc, BikeRadar or Cycling Weekly review of this exact lock; our editorial test is American.
- A large buyer sample. The UK ratings we found total 13 reviews across two shops.
- Halfords’ price and rating. Its product page would not load for us.
Sources last checked 4 October 2026. Prices, ratings and offer terms change — check them against the listing and Kryptonite’s site before you buy.