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Compare two products
Pick any two products from our reviews and see specifications, price, buyer ratings and our scores in one table.
Recorded evidence
What separates these listings
- Price snapshot
- $85.24 price gap
- Product B has the lower captured price. This excludes delivery and ongoing costs.
- Editorial assessment
- 0.6-point score gap
- Product A has the higher research score, not a measured performance advantage.
- Specification coverage
- 12 of 18 fields shared
- Shared labels have recorded values on both sides; matching labels do not guarantee matching units or test conditions.
Product A
Kryptonite Evolution Mini-7 Bike U-Lock, 13mm Steel Shackle, 4 ft Cable
- Potential fit
- Daily urban commuting on standard bicycles
- Trade-off to resolve
- Compact shackle limits anchor point selection
Product B
GRIFEMA Keyed Bike Chain Lock, Heavy Duty Anti-Theft Security Lock, 4FT
- Potential fit
- Budget utility locking and secondary deterrence
- Trade-off to resolve
- Lacks independent testing standards like Sold Secure
Side-by-side evidence
18 of 18 recorded specification fields shown
| Side by side |  |  |
|---|---|---|
| Buyer rating | 4.5 | 4.6 |
| Price | $99.23 | $13.99 |
| Our score | 8.0/10 | 7.4/10 |
| Ratings count | 14,258 ratings | 12,407 ratings |
| Brand | Kryptonite | GRIFEMA |
| Best for | Daily urban commuting on standard bicycles | Budget utility locking and secondary deterrence |
| Shackle security | 8.5/10 | — |
| Locking versatility | 7.2/10 | — |
| Portability & mounting | 7.8/10 | — |
| Weather resistance | 8.0/10 | — |
| Value for money | 8.3/10 | — |
| Physical security | — | 6.0/10 |
| Build quality | — | 6.8/10 |
| Ease of use | — | 8.2/10 |
| Weatherproofing | — | 7.0/10 |
| Value | — | 8.8/10 |
| Included Components | U-Lock Bicycle | 1 x Anti-Theft Bicycle Lock, 1 x User Manual, 2 x Keys |
| Recommended Uses For Product | Security, Bike security, Scooter Security, EBike Security | motorcycles, scooters, ebikes, skateboards, grills, ladders, doors, lawnmowers |
| Number of Pieces | 3 | 3 |
| Model Number | 720018002079 | GA1201-12 |
| Model Name | Evolution Mini-7 U Lock w/ KryptoFlex 410 Double Looped Cable | GA1201-12 |
| Number of Packs | 1 | Not recorded |
| Item Type Name | Bicycle Lock | bike chain lock with key |
| Additional Features | Cut Resistant | Anti-Corrosion, Cut Resistant, Portable, Scratch-Resistant, Weather Resistant |
| Brand Name | Kryptonite | GRIFEMA |
| Manufacturer Warranty Description | Limited Lifetime Warranty | Not recorded |
| Number of Items | 1 | 1 |
| Manufacturer | Kryptonite | Ibergrif Griferias,S.L |
| Unit Count | 1 Count | 1 Count |
| Manufacturer Part Number | 2079 | GA1201-12 |
| Lock Type | Not recorded | 1.Key Lock-4FT |
| Controller Type | Not recorded | Hand Control |
| Control Method | Not recorded | Touch |
| Style Name | Not recorded | Key lock |
| Our verdict | The 13mm hardened steel shackle offers dependable mid-tier deterrence for everyday urban stops, while the secondary cable secures quick-release front wheels. Its compact dimensions limit attachment options around thick street poles and utility posts. For higher-value e-bikes left unattended for long periods, consider pairing it with a heavier secondary chain. | A keyed mechanism provides slightly better physical reliability than cheap combination dials in bad weather. However, the steel gauge and lock body remain entry-level, offering limited defense against sustained attacks with hand tools. Treat this as supplemental locking rather than standalone protection for an expensive e-bike. |
| Pros and cons |
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Prices and buyer ratings are captured snapshots. A dash means the detail was not recorded, not that a feature is absent. Editorial scores are research assessments, not laboratory measurements.
Sources and limits
This page summarizes our research reviews of Amazon listings, listed specifications and captured buyer ratings. It is not a hands-on test. Scores are editorial assessments, not measured performance; prices are recorded snapshots and may change. A category can include both main products and accessories, so its overall price range is not the cost of a complete setup.
Most recent product record update: September 22, 2026. Individual records may be older; this is not a verification date for every claim. Prices on this page were read from the listings Nov 8, 2026.
- Amazon listing: Kryptonite Evolution Mini-7 Bike U-Lock, 13mm Steel
- Amazon listing: GRIFEMA Keyed Bike Chain Lock, Heavy Duty Anti-Theft
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