BIKE LOCKS

We sub­jected eight locks to our tough­est test ever. How tough? We headed to Ger­man labs and sub­jected them to steel and tung­sten saws, bolt crop­pers, the freeze-and­ham­mer tech­nique, grind­ing and even a cor­ro­sion test. That tough enough, ladies and gents…?

Urban Cyclist - - On Test - Words: War­ren Ros­siter Pho­tog­ra­phy: ASDe­sign. uk.com

MASTERLOCK 8239 EURDPRO CRI­TE­RION GOLD £99.99 www.masterlock.com

The Cri­te­rion com­bines a 110cm chain with a mini U-lock shackle to form a long, heavy­weight-rated chain lock. Un­der chill­ing and ham­mer­ing – which com­prised freez­ing the locks in a cabi­net set at -40°C to, the­o­ret­i­cally, make it more brit­tle be­fore hit­ting with a sledge­ham­mer – it was bro­ken with three strikes from the 1m-drop sledge. Un­der saw­ing, the stan­dard blade had lit­tle ef­fect, though the tung­sten took just over a minute per side. Bolt crop­ping on the links was in line with the com­pe­ti­tion, but the shackle bar proved as tough as the more ex­pen­sive Homie. Un­der at­tack from the grinder, the links proved the most re­silient on test. While the Cri­te­rion is a much sim­pler de­sign than its ri­vals, it’s made out of strong stuff and does the job well.

7 Stood up well to the bat­tery of de­bil­i­tat­ing tests

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