Security Bolts Finally Gave Me and My Bike Peace of MindAny thief with a $5 tool can steal parts off your bike. Ruin their day with a set of bolts or inserts that only you can unlock.
Source: Security Bolts Finally Gave Me and My Bike Peace of Mind (https://www.wired.com/story/bike-security-bolts-finally-gave-me-peace-of-mind/)