Sportneer Bike Lock - 16mm Shackle Heavy Duty Anti Theft Bike U Lock with 3 Keys - Bicycle U-Locks with Sturdy Mounting Bracket for Bike Scooter Gate, Size 8.7''x5.9'', Weight 2.45lbs

• Effortless Keyless Locking: No need to reach for a key. Simply push the shackle down to lock your bike instantly during quick stops at work, school, or the store. Designed for riders who want fast, hassle-free security every day.

• Cut & Drill Resistant: The 16mm(0.63inches) hardened steel shackle (14mm solid metal core + 2mm protective coating) for maximum security, thanks to the zinc alloy lock core and alloy steel lock head, this bike U-lock can withstand hydraulic shear forces up to 12 tons. It‘s tough as nails, resisting cutting, sawing, smashing, and drilling to protect your bike from potential theft.

• Smooth Unlock in Any Weather: Never struggle with a stuck lock. The sliding dust cover keeps rain, dirt, and debris out of the keyway, ensuring smooth unlocking in rain, snow, or muddy conditions — perfect for year-round use.

• Easy to Carry & 3 Backup Keys: Never worry about losing a key — comes with 3 spare keys for family or emergencies. The adjustable bracket (fits 0.79-2.17inch frame tubes) keeps the 2.45lb lock securely mounted while riding, even on bumpy roads.

• Perfect Fit for Most Bikes: The practical 8.7"x5.9" U-lock fits road, mountain bikes, e-bikes, and scooters with ease. Locks most racks and gates while remaining compact for daily carry — ideal for commuting, campus, and city riding.

Combine the U-lock to secure the bike's frame to a locking surface. For maximum security, we employ the highest-quality steel wire and an zinc alloy cylinder for protection that lasts. Prevent your bike from getting stolen with the Sportneer Heavy-duty Bike U Lock!