Clarks 72mm Anti-Lock Anodised V Brake PadsClarks have been striving to deliver quality products for over 60 years now. The brand is dedicated to innovation in materials and design. Riders who use Clarks products have complete confidence in their brakes and steering grip - both of which are pivotal to high performance. 72mm ALT Anti-Lock Technology Brake Pad Controlled Braking. Dual density rubber combination offers anti-lock braking function. Shorter braking distances. Shimano system compatible. Better braking power control. Buy Clarks Components from Chain Reaction Cycles, the Worlds Largest Online Bike Store.