Built for riders who demand serious security, the JetBlack Heavy Duty Chain Key Lock delivers robust protection for bikes, e-bikes and high-value gear.

Highlights

  • Hardened 8.5mm steel chain links
  • Durable nylon sleeve protects the frame from scratches
  • 120cm length for racks, poles or larger fixed objects
  • Automatic closure system
  • 2 reversible keys with a secure key drop catch

Built for everyday security

The generous length and hardened chain make it a dependable choice for commuting, urban parking or travel, while the nylon sleeve keeps the frame free of scratches.

This product is covered by JetBlack's warranty against manufacturing defects. For warranty support, return the product to Tune Cycles and we'll manage the claim with JetBlack Cycling.
  • Hardened 8.5mm chain links
  • 120cm length
  • Nylon protective sleeve
  • Automatic closure system
  • 2 reversible keys, key drop catch
Chain length120cm
Chain thickness8.5mm hardened steel
SleeveNylon
Lock typeKey lock, 2 reversible keys, key drop catch
SKU JET-JBL-CHAIN-HEAVYD
Brand JetBlack