About Quad Lock Handlebar/Stem Bike MountThe Quad Lock® Bike Mount is the lightest, strongest and most secure smartphone bike mount on the market. FeaturesSecure Mounting: The patented dual-stage lock is strong enough to lift up to 80 kg (yep, we tested it). So you can ride with confidence over bumps and jumps knowing that your iPhone or Galaxy isn’t going anywhere your bike isn’t. Quick to Attach / Detach: Simply twist and lock to view apps such as Strava®, MapmyRide or Apple® maps as you ride. Detach just as easily so you don’t miss a photo opportunity or important phone call. Remember, it’s all in the technique, not the force. Sleek Design: At just 23mm tall and 35mm wide, the Quad Lock® Bike Mount fits seamlessly onto the stem or handlebar of your bike. SpecificationsSuits bar sizes 25-40mm in diameter Glass filled nylon / polycarbonate construction Stainless steel fasteners 23.3mm tall 35.5mm wide 50mm long Compatible with all Quad Lock® cases and Universal Adaptors What's Included1 x Quad Lock® Bike Mount Mounting Hardware: 2 x EPDM mounting o-rings (small) 2 x EPDM mounting o-rings (large) 2 x Nylon zip ties (black) Note: Phone case must be purchased separately About Quad LockCreated by Melbourne based designer Chris Peters and brought to market through the power of crowd funding. Quad Lock allows you to get your smartphone out of your pocket and safely onto the handle bars of your bike, allowing for safe and easy map directions. The patented Quad Lock system is the strongest, most secure and most convenient mounting system that integrates your phone into an active lifestyle.