Abus Kette 6KS + LOOP Chain Lock 6mm Black 100cm Weight-1115g this is the most durable

this is the most durable binder in the world

Optimized 7000 series forged aluminum arms

Ring Position/Type Chain Retaining Single Ring Tooth Count 38 Round or Oval Round Drivetrain Speeds 9 Drivetrain Speeds 10 Drivetrain Speeds 11 Drivetrain Speeds 12 Offset 3 Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 141/148 Boost Hubs Chainline/Hub Compatibility 150/157 DH Hubs Chainline/Hub Compatibility 157 Super Boost Hubs Chainline/Hub Compatibility 170/177 Hubs Chainline/Hub Compatibility 190/197 Hubs Material Aluminum Defined Color Black Direct Mount Type Direct Mount CINCH

Disc IS 6-bolt

It has a rim

Abus Kette 6KS + LOOP Chain Lock 6mm Black 100cm Weight-1115g this is the most durableUnique loop on one end of chain allows for locking multiple bikes to a fixed point with one lock padlock. Chain links produced from a hardened steel, designed to protect against all types of attack. The fabric sleeve prevents damage to paintwork. TECH SPECS Bracket No Primary Color Black Thickness In mm 6mm