|Item Weight||2.36 pounds|
|Product Dimensions||7.1 x 3.35 x 1 inches|
|Item model number||UM85|
|Material||Hardened Steel with Nylon 6 and Glass Fibers Cover|
|Usage||Bike Lock; Scooter Lock; E-Scooter Lock|
Seatylock Mason Bike U Lock - Patented Heavy Duty Anti Theft Gold Secure ULock - Ultra Security Bicycle Safety Tool with Keys for City Electric or Mountain Bikes and Scooters (7.1 Inch, Black)
Enhance your purchase
|Material||Hardened Steel with Nylon 6 and Glass Fibers Cover|
|Item Dimensions LxWxH||7.1 x 3.35 x 1 inches|
|Lock Type||Patented Triangular Crossbars with Double Deadbolt|
About this item
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- LIGHTEST SOLD SECURE GOLD U LOCK FOR ITS SIZE - Best Lightweight Portable & Solid Professional Lock - No Code or Chain. Perfect for Outdoor & Urban Cycling. Bolt Cutter Drill Pick & Saw Proof Hard Bikelock
- PATENT ULTRA STRENGTH HEAVY DUTY ANTI THEFT TECHNOLOGY - Anti Cut Durable Waterproof Weatherproof Bicycle Protector with Antitheft Triangle Shaped Crossbars. Strongly Tested Guard System Stops Thief Attacks
- RELIABLE HIGH PERFORMANCE PROTECTION - SeatyLock Pro Break Resistant Thief Deterrent. Compact & Easy Carry Bike Accessory. Rust Prevention Coating & Components for Dependable & Quality Safety
- UNIQUE AUTOMATIC KEYHOLE SHUTTER - Super Specialized Dust Dirt Rain & Weather Proof Locking Gear for e-Bikes Roadbikes Electric Bikes Scooters & Motorcycles. Mounting Bracket Sold Separately
- THE ONLY U-LOCK WITH DOUBLE THICKNESS PROTECTIVE PLATES - Smart Cutting Edge Design for Extreme Safety. Ultimate Combination of Light Weight & Maximum Security for Safe Cycles. Tough Anti-Theft Device
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From the brand
How we got our start?SeatyLock’s Founders Have Decades of Experience in High Tech, Design, Security & Manufacturing. Utilizing Our Hands-On Knowledge, SeatyLock Was Born to Break Barriers in the Bike Safety Industry. Since 2013 We’ve Developed a Wide Range of Folding Locks, U Locks, Chain Locks, Hybrid Locks & More
What makes our product unique?Because of Our Team's Diverse Experiences Across Multiple Industries, Our Products Reflect Our Unique Perspective - The Perfect Marriage of Heavy Duty Anti Theft Protection & Beautiful, Visually Pleasing Design. We Hold 4 US Patents & Multiple International Patents for Our Innovative Products
Why we love what we do?Cycling is Our Passion! From the Design, Development & Engineering Teams to our Marketers & Senior Executives, We All Love Our Bikes. As Committed Cyclists, We Create Products that We’re Proud to Use in Our Day to Day Lives. We Love Creating Bike Security Tools that Give Us Much Needed Peace of Mind
SeatyLock Mason U Lock - Lightest Sold Secure Gold Bike U-Lock for its Size:
Meet the Lightest Gold Security Level Bike U-Lock for Its Size - The SeatyLock’s Mason 180 U Lock. Lightweight Portable & Solid Professional Bike Lock. The Absolute Lightest for its Size With Zero Compromise on High Level Maximum Security.
Our Unique Design Utilizes Patented Triangular Crossbars, Which are 30% Stronger Than Standard Round Crossbars. Combined With a Double Deadbolt Locking Mechanism & Double Thickness Plates, This U-Lock Provides the Ultimate in High Security Protection Against Would-Be Thieves.
SeatyLock’s Mason U Lock Protects Your Bike From Any & All Possible Weather Damage. Locks Out Water, Dirt, Dust & Everything in Between to Preserve the Lifespan and Reliability of Your Highly Secure Bike Lock. Mounting Bracket Sold Separately.
We Tested the Mason U-Lock By Using a Wide Variety of Stress Tests, Simulating Real-Life Attack Strategies by Thieves. Our U-Lock Beat Tests Including Hacksaws, Bolt Cutters, Crowbars and Freeze Attacks
The Most Trusted Name in Bike Security, SeatyLock, is a Bike Lock Designer & Manufacturer, Developing & Using Innovative, Cutting Edge Techniques to Create Heavy Duty Anti Theft Technology. We Hold Multiple Patents for Our Unique Features & Designs.
SeatyLock Products are the Perfect Marriage of Lightweight & Easy to Use Convenience with Maximum High Security to Give Bike Owners Peace of Mind. Our Products Are Portable and Simple to Carry But Durable Reliable & Strong - Never Compromising on Protection.
Popular SeatyLock Products Include Our Highly Rated Foldable Compact Bike Locks, Heavy Duty Viking Chain Locks, Foldable Seat Locks & Powerful Mason U-Locks. Known for Our Reliability, Strength, & Durability, SeatyLock Provides the Highest Level of Bike Security.
Unique Patented Triangular Crossbars for Heavy Duty Protection:
The SeatyLock Mason U-Lock’s Unique Triangular Shaped Crossbars are 30% Stronger Than Standard Round Crossbars!
Our Cutting Edge Design Means That Your Bike is Getting Maximum Security Unparalleled by Our Competitors. This Innovative Shape Gives You Superior, Best In Class Protection While Keeping the Lock Lightweight & Easy to Carry. The Perfect Strength to Weight Ratio...
Please note: Mounting Bracket Sold Separately.
Seatylock Mason Tried & Tested Against Theft Attacks:
We Tested the Mason U-Lock By Using a Wide Variety of Stress Tests, Simulating Real-Life Attack Strategies by Thieves:
✔ Bolt Cutter
A Bolt Cutter is One of the Most Common Theft Strategies Used by Thieves. But A Standard Bolt-Cutter is No Match for Our Mason U Lock! The Lock Wasn’t Broken By a Bolt Cutter.
✔ Carbide Hacksaw
Our Mason U-Lock is So Strong That Even a Carbide Hacksaw Isn’t Enough to Saw Through the Solid Secure Metal. A Thief with a Hacksaw is Out of Luck with the SeatyLock Mason U-Lock.
Our Patented Triangular Crossbars & Double Deadbolt Make the Mason U-Lock Immune to Crowbar Prying & Twisting Attacks! We Passed the Crowbar Test with Flying Colors.
✔ Freeze Attack
We Saved the Best for Last! Using Liquid Nitrogen to Freeze & Weaken the Metal on the Lock, Our Lock Remained Solid & Secure. Even a Freeze Attack Couldn’t Break the Mason U-Lock.
Seatylock Mason 180 U-Lock Benefits:
✔ The Lightest Sold Secure Gold Lock for Its Size
Lightweight Portable & Solid Professional ULock - No Code or Chain. Perfect for City Outdoor & Urban Cycling. Bolt Cutter Drill & Saw Proof Bike Lock
✔ Patented Heavy Duty Triangular Crossbars
Tough & Durable Waterproof Weatherproof Bicycle Protector with Unique Antitheft Triangle Crossbars. Well Tested Guard System Stops Thieves
✔ Rigorously Tested to Defeat Theft Attempts
We Tested the Mason U Lock by Using a Wide Variety of Stress Tests, Simulating Real-Life Attack Strategies by Thieves, Including: Hacksaws, Bolt Cutters, Crowbars and Freeze Attacks.
✔ Reliable, Easy to Use & Carry Protection
Pro Break Resistant Theft Deterrent from SeatyLock. Compact Easy Carry Bike Accessory. Anti Cut Rust Proof Coating & Components for Dependable & Quality Safety
✔ Only U-Lock with Double Thickness Protective Plates
Smart Cutting Edge Design for Extreme Protection. Ultimate Combination of Light Weight & Maximum Security for Safe Cycles.
✔ Unique Automatic Keyhole Shutter
Protects Your Lock From Any & All Possible Weather Damage. Locks Out Water, Dirt, Dust & Everything in Between to Preserve the Lifespan and Reliability of Your Highly Secure Bike Lock
Seatylock Mason Main Key Features:
Ultra-Lightweight & Super Secure
Meet The World’s Lightest Gold Sold Secure U-Lock for Heavy Duty Anti Theft Protection. Lightweight Portable & Solid Professional Bike Lock. Lightest in its Class With Zero Compromise on High Level Maximum Security.
Double Deadbolt for Ultimate Security
Symmetric Action Mechanism Provides Extra Protection Against Twist Attacks. The Double Deadbolt in this U-Lock Gives An Unprecedented Level of Security that Can’t Be Broken by Thieves.
Unique Automatic Keyhole Shutter
A Cutting Edge, Automatic Keyhole Shutter Protects Your Lock From Any & All Possible Weather Damage. Locks Out Water, Dirt, Dust & Everything in Between to Preserve the Lifespan and Reliability of Your Highly Secure Bike Lock.
Patented Triangular Crossbars
This U-Lock’s Unique Triangular Shaped Crossbars Are 30% Stronger Than Standard Round Crossbars. Combined With a Double Deadbolt Locking Mechanism & Double Thickness Plates, This U-Lock Provides The Ultimate in High Security Protection Against Would-Be Thieves.
SeatyLock’s Mason U-Lock is Best in Class According to Industry Criteria:
✔ Lightest in Class for Its Size
The Lightest Gold Sold Secure Bike U-Lock for Its Size on the Market.
✔ Patented Triangular Crossbars
Unique Design Proven Stronger & Safer than Competitors’ Round Crossbars.
✔ Dual Thickness Plates
Cutting Edge Design for Heavy Duty Protection.
✔ Automotive Standard Keys
Our Super Secure Bike Keys are as Secure as Car Keys.
✔ Automatic Keyhole Shutter Protection
Protects Your U-Lock From Any & All Possible Weather Damage. Locks Out Water, Dirt, Dust & Everything in Between.
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I've had it over 6 months now and have had zero issues. It hasn't yet needed lubrication. The keys seem tough and give plenty of leverage. I've seen no signs of tampering and I do occasionay leave my bike in downtown Chicago. For the first few months I left the lock loose in my basket while riding which must've bashed it around a lot but it was fine apart from picking up some superficial scratches where the plastic rubbed against the steel basket.
I now use the holder attachment which is much neater but quite stiff to attach and release the lock, to the extent I cut a finger when trying to remove it one day. Also because the U part is a triangle cross section it means you *can* mount the lock in plane with the frame just fine, which most people will do. But if you have two water bottles (or other items) taking up the space in the middle of the frame you need to mount it outside of that plane; to make that work you need to mount the holder at a 30 or 60 degree angle for the lock not to get in the way of your legs. Sorry this isn't very clear when written down but it will become so if you try to mount it outside of the frame.
There's a helpful bit of Silicon which very neatly fills the gap between the U and the lock mechanism, which presumably helps reduce water ingress and makes it harder for anyone to get a tool into the gap
By Atomic on June 17, 2019
I bought the lock for my E.bike that I ride daily to work
Love the Solid feel and the work they put into the design, doesn’t look like any U lock out there…
I previously used a Kryptonite but had issues with the keys / locking mechanism. The Mason has keys that look like my car keys, works smooth as butter and feels like it's going to work just forever….
Definitely recommended in case your looking for high security combined with low weight and great design
It is such a bad feeling like wondering if you're ever going to get home (or back to the office from a lunch errand) when you simply can't get the tumblers to open up and you're being super gentle to not bend or break the key off - something that will happen with competitive brands - but never with Seatylock!
Lock mechanism is SUPER SMOOTH, feels very solid like you aren't at risk for ruining anything. Attaches very smoothly to my bike, not harsh or cumbersome to attach around bike stations.
Peace of mind is priceless: I know it will open whenever I need, and lock quickly and without hastle.
Thank you for great product!