Kryptonite
Evolution Mini-7 U-Lock with 4ft Flex Cable
Daily ebike commuters in moderate-to-high theft cities who want Sold Secure Gold protection without the Fahgettaboudit weight and price.
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Strengths
- Double deadbolt forces two cuts, doubling thief time on power-tool attacks.
- 13mm hardened steel resists hand bolt cutters.
- Includes 4 ft flex cable for front wheel + accessories — bundled at the price.
- FlexFrame bracket actually works for transport.
- $2,500 Anti-Theft Protection Offer if registered.
Weaknesses
- 7 in inner length is tight for thick ebike frames + fat rack posts simultaneously.
- Heavier than competing Mini U-locks (3.55 lbs).
- Sold Secure Gold isn't Diamond — angle-grinder attacks still beat it.
- Key cylinder requires periodic lubrication to stay smooth.
Specs
- Weight Lbs
- 3.55
- Material
- 13mm hardened MAX-Performance steel shackle, double deadbolt
- Shackle Diameter Mm
- 13
- Internal Dimensions
- 3.25 in W x 7 in L
- Safety Rating
- Sold Secure Gold / Kryptonite Security 7 of 10
- Security Rating
- 7/10 Kryptonite scale
- Key Type
- Disc-style cylinder, 3 stainless keys
- Warranty
- Lifetime + $2,500 Anti-Theft Protection Offer
- Includes
- 4 ft (10mm) KryptoFlex double-loop cable, FlexFrame-U bracket
The Evolution Mini-7 is Kryptonite’s mid-tier U-lock — 13mm shackle (vs the Fahgettaboudit’s 18mm), 7/10 security rating, Sold Secure Gold. The right call for a commuter who wants Sold Secure Gold protection but doesn’t want to carry the 4.7 lb Fahgettaboudit every day.
The bundled 4-foot flex cable solves the “but what about the wheels?” problem most U-locks leave unsolved. Lock the frame to the rack with the U, run the cable through both wheels.
Kryptonite now has two locks in this catalog: the New York Fahgettaboudit Mini (10/10 security, $145) and the Evolution Mini-7 (7/10 security, $90). Fahgettaboudit for high-theft urban use; Evolution Mini-7 for moderate-theft daily commute.
Sources
Every claim in this guide that isn't first-person experience is traceable to one of the sources below. URLs verified at publication; some may rot — let us know if so.
- Kryptonite Evolution Mini-7 product page — KryptoniteOfficial specs and security rating.
- Kryptonite Evolution Mini-7 U-Lock Review — OutdoorGearLabIndependent attack resistance testing.