The included keys are two (one with LED). Operation is completely problem-free and has been maintained. Daytona Stronger U-Lock W154 x H220mm Protect your precious bike with a sturdy body and thick shackle! Uses 16mm round steel, a reassuring thickness that is difficult to cut. The cushion rubber prevents damage to the wheels. The key uses a 7-disc cylinder key that is resistant to picking. The shackle connects at two points, making it difficult to remove. The keyhole has a shutter to protect it from dust and rain. Extra-thick φ16mm round steel material for strong resistance to cutting, and cushion rubber to prevent wheel scratches Uses a 7-disc cylinder key that is resistant to picking The shackle insertion points have a 2-lock design that is difficult to unlock Tire lock dimensions: 220mm (height) x 154mm (width) Motorcycle lock U-lock Motorcycle key Motorcycle security Motorcycle theft prevention