--- product_id: 4534597 title: "Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for Kryptonite U-Locks 13mm-16mm Shackles, Bicycle Attachment Accessory" brand: "kryptonite" price: "€ 48.89" currency: EUR in_stock: true reviews_count: 8 category: "Kryptonite" url: https://www.desertcart.at/products/4534597-transit-flexframe-u-bracket-bike-lock-mount-lightweight-mounting-bracket store_origin: AT region: Austria --- # Compatible with 13-16mm U-lock shackles Lightweight at 6.4 oz Fits 25-80mm frame tubes Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for Kryptonite U-Locks 13mm-16mm Shackles, Bicycle Attachment Accessory **Brand:** kryptonite **Price:** € 48.89 **Availability:** βœ… In Stock ## Summary > πŸ” Lock it. Mount it. Ride free. ## Quick Answers - **What is this?** Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for Kryptonite U-Locks 13mm-16mm Shackles, Bicycle Attachment Accessory by kryptonite - **How much does it cost?** € 48.89 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.at](https://www.desertcart.at/products/4534597-transit-flexframe-u-bracket-bike-lock-mount-lightweight-mounting-bracket) ## Best For - kryptonite enthusiasts ## Why This Product - Trusted kryptonite brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Lock Compatibility:** Designed to hold most Kryptonite U-locks with 13mm to 16mm shackles, ensuring your trusted lock travels with you. - β€’ **Universal Frame Fit:** Securely mounts on round, oval, triangular, or square tubes from 25mm to 80mm for ultimate versatility. - β€’ **Durable & Lightweight:** Crafted from alloy steel and aluminum, combining strength with a featherlight 6.4 oz design for no added bulk. - β€’ **Lifetime Peace of Mind:** Backed by Kryptonite’s lifetime warranty, so your security accessory is as reliable as your ride. - β€’ **Effortless Installation:** Quick and easy mounting with included toolsβ€”get your lock on the go without hassle. ## Overview The Kryptonite Transit FlexFrame-U Bracket is a lightweight, durable mounting accessory designed to securely hold most Kryptonite U-locks with 13mm to 16mm shackles. It fits a wide range of bike frame shapes and sizes (25mm to 80mm tubing), installs quickly with included tools, and is crafted from alloy steel and aluminum. Perfect for urban cyclists seeking a reliable, versatile lock mount backed by a lifetime warranty. ## Description Supports the transportation of most Kryptonite u-locks (excluding the NY fahgettaboudit and messenger series u-locks) Review: Works perfectly - This is a really great mount, it can fit onto a normal round tube bike or it can also fit onto a square or rectangle shaped tube like on some of the newer bikes. I bought 2 of these and mounted one on my bike and the other on my wife's bike, so the lock can switch from bike to bike. There are some reviews that say this is a bad piece of equipment because it does hold properly or some other reasons and I can tell you this mount will mount on your bike very securely and easily, but there is a right way to do it and a wrong way. Make sure the strap is wrapped around the tube securely and snugly before you tighten the screw that holds it in place and it will be in place and won't move at all when done. Another thing to note about this is that when your lock is placed into this mount it is held onto the bike securely and won't come off, but the lock can still move back and forth. The silver piece on the lock that slides into the mount and locks in place holds the lock to the mount but it just slips over the round bar of the lock and can spin in place, which means when locked in it can still back and forth. I use a small velcro strap to hold the round bar side of the lock w/o the silver piece to the frame or where you decide to place it. (I know this sounds confusing, but you will know what I mean when you get it). It is a good mount and I completely recommend it to everyone. (the picture of the lock mounted into the downtube bottle mounts looks great, but the lock will not stay in that upright position, it will fall to either side and hang down unless you hold it in place with a strap around the lock and downtube) Review: It's a U-Lock brace/holder - Fits the mast of a Segway escooter and holds a Kryptonite brand U-Lock. Padding needed to be removed from love to attach adapter. Recommend buying rubber or silicone tape to rewrap lock to prevent knicks ## Features - Mounts quickly and easy.Note: Measure your door's backset, cross bore and thickness to ensure you find the right fit. - Supports the transportation of most Kryptonite u-locks (excluding the NY fahgettaboudit and messenger series u-locks) - Compatible with Kryptonite 13mm & 16mm round shaped shackles - Heavy-duty soft strap system contours to bike frame - Product dimensions: fits bicycle frame tubing 25mm to 80mm whether round, oval, triangular or square shapes ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B005YPKLLE | | Additional Features | Lightweight | | Brand | Kryptonite | | Brand Name | Kryptonite | | Color | Black | | Control Method | Touch | | Controller Type | Hand Control | | Customer Reviews | 4.0 out of 5 stars 1,814 Reviews | | Finish Types | Painted | | Global Trade Identification Number | 00720018000730 | | Included Components | Bracket includes tools to fit. | | Item Dimensions | 5.75 x 2.5 x 2.4 inches | | Item Type Name | Bicycle Security | | Item Weight | 6.4 ounces | | Item dimensions L x W x H | 5.75 x 2.5 x 2.4 inches | | Lock Type | U-lock | | Manufacturer | Kryptonite | | Manufacturer Warranty Description | Lifetime Warranty | | Material | Alloy Steel , Aluminum | | Material Type | Alloy Steel, Aluminum | | Model Number | 102369 | | Recommended Uses For Product | Urban cycling | | Shape | Round | | Special Feature | Lightweight | | Style Name | Modern | | UPC | 720018000730 | | Unit Count | 1.0 Count | ## Product Details - **Brand:** Kryptonite - **Item dimensions L x W x H:** 5.75 x 2.5 x 2.4 inches - **Lock Type:** U-lock - **Material:** Alloy Steel, Aluminum - **Special Feature:** Lightweight ## Images ![Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for Kryptonite U-Locks 13mm-16mm Shackles, Bicycle Attachment Accessory - Image 1](https://m.media-amazon.com/images/I/71ivha0lq2L.jpg) ## Available Options This product comes in different **Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works perfectly *by G***E on October 30, 2018* This is a really great mount, it can fit onto a normal round tube bike or it can also fit onto a square or rectangle shaped tube like on some of the newer bikes. I bought 2 of these and mounted one on my bike and the other on my wife's bike, so the lock can switch from bike to bike. There are some reviews that say this is a bad piece of equipment because it does hold properly or some other reasons and I can tell you this mount will mount on your bike very securely and easily, but there is a right way to do it and a wrong way. Make sure the strap is wrapped around the tube securely and snugly before you tighten the screw that holds it in place and it will be in place and won't move at all when done. Another thing to note about this is that when your lock is placed into this mount it is held onto the bike securely and won't come off, but the lock can still move back and forth. The silver piece on the lock that slides into the mount and locks in place holds the lock to the mount but it just slips over the round bar of the lock and can spin in place, which means when locked in it can still back and forth. I use a small velcro strap to hold the round bar side of the lock w/o the silver piece to the frame or where you decide to place it. (I know this sounds confusing, but you will know what I mean when you get it). It is a good mount and I completely recommend it to everyone. (the picture of the lock mounted into the downtube bottle mounts looks great, but the lock will not stay in that upright position, it will fall to either side and hang down unless you hold it in place with a strap around the lock and downtube) ### ⭐⭐⭐⭐⭐ It's a U-Lock brace/holder *by S***S on March 23, 2026* Fits the mast of a Segway escooter and holds a Kryptonite brand U-Lock. Padding needed to be removed from love to attach adapter. Recommend buying rubber or silicone tape to rewrap lock to prevent knicks ### ⭐ Epimethean Technology *by S***S on July 31, 2020* This lock is a tragedy, the hubris of a successful lock company, a fleecing of its consumers (It's a cliche story, I know.) When I originally bought the lock, this bracket technology was included, so I mounted it to my seat tube assuming that it would work....It did not. It stayed in place maybe a few weeks before sliding down toward the petals, towards Hades. Then, I tried it in multiple other places, and it also remained where mounted for just short periods. I gave up, cursed the gods, and I tossed it. A couple years later, tired of the weight of it in my bag or the rattle of it on my cargo rack held in place by a bungee cord, I decided to buy another bracket, thinking that maybe the first one I had was defective. Clearly, only my lack of foresight was, similar to whoever made this lock, perhaps the lowly people of the Iron Age. The replacement bracket seems even worse, if that is possible, devised by . The final and most recent failure for me was when the blinking thing actually stopped me from moving, as the lock swung back in forth, clashing like Sympleglades against my shins interrupting my pedaling. I threw the lock in my bag and the bracket in the trash, which of course, slid right down to the bottom, likely out of habit or perhaps because that is where it belonged (Poor lock mount like Oedipus, The Fates were against you.) I hate having to put the lock in my myriad of other storage spots, but I've conceded defeat to this Herculean task. I've also decided that I likely won't buy another Kryptonite lock because I don't really have faith in a company that cannot design a simple mounting bracket. Presumably, a sound lock is more difficult to create than a mount for said lock but...? Their designer/engineer should have his liver pecked at every day like Prometheus (Okay, maybe not that bad but note to engineer--you don't have Impostor Syndrome; you're really don't belong there. Consider yourself more of a hobbyist than anything else) In the words of Comic Book Guy, "Worst Mounting Bracket, ever." ## Frequently Bought Together - Kryptonite Transit FlexFrame-U Bracket Bike Lock Mount, Lightweight Mounting Bracket for Kryptonite U-Locks 13mm-16mm Shackles, Bicycle Attachment Accessory,Black - Ascher Ultra Bright USB Rechargeable Bike Light Set, Powerful Bicycle Front Headlight and Back Taillight, 4 Light Modes, Easy to Install for Men Women Kids Road Mountain Cycling Black - Lamicall Bike Phone Holder, Motorcycle Mount - Motorcycle Phone Holder, Handlebar Cell Phone Clamp, Scooter Phone Clip for iPhone 16 Pro Max/Plus, 15 Pro Max, S10, S20, More 4.7" to 6.8" Smartphones --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.at/products/4534597-transit-flexframe-u-bracket-bike-lock-mount-lightweight-mounting-bracket](https://www.desertcart.at/products/4534597-transit-flexframe-u-bracket-bike-lock-mount-lightweight-mounting-bracket) --- *Product available on Desertcart Austria* *Store origin: AT* *Last updated: 2026-05-06*