A.S.S. Anti Strap System

Regular Price
Sale Price
Regular Price
Sold Out
Unit Price

Option: Slider

- +

Frustrated with floppy bags, worn paintwork and cafe stop faff we sort to design as system this strapless quick release system for top tube bags/bento boxes/fuel pods. Works with most bag and bike combinations.

A.S.S. Slider

Replaces top tube straps

  • Bonds* to the top tube OR screws directly to bosses
  • Slide on/off quick-release - ideal for taking your valuables with you
  • 2 piece - 1 attaches to top tube, 1 attaches to bag
  • Works with bolt-on bags and others which can be easily converted**
  • No headtube strap required for small bags / bento boxes. Large bags may require use of the headtube strap or ASS Clip
  • Manufactured in-house using our Multi Jet Fusion industrial 3D printer and shot peened for surface toughness and quality.
  • Replacement VHB pads available here.

    *Using the supplied custom cut VHB pads - successfully used on thousands of our ENDURO mounts

    ** Instruction on converting non-bolt-on bags can be found online, in our experience stiffer bags are better for conversions.

    A.S.S. Slider Instructions

    A.S.S. Clip

    • Now comes with a hinged clip for better compatibility with different angles and a bungee cord for added security
    • Replaces headtube strap
    • 2 Piece - One attaches to bag and one replaces a 10mm stem spacer
    • No interference with stem
    • Increases stability
    • No rubbing
    • Quick-release
    • Works with all loose straps and many fixed ones***
    • Manufactured in-house using our Multi Jet Fusion industrial 3D printer and shot peened for surface toughness and quality.

    *** Does not work with straps that have buckles

    A.S.S. Clip Instructions


    Do I need a Clip if I’m using the Slider?

    It really depends on the bag and what you’re putting in it. A Tri orientated bento box will likely not need the clip. A huge 1.5L top tube bags full of electronics will need a clip. Tall bags will likely need a clip, bags with little stiffening will likely need a clip.


    Need to know more? Check out this review from LockedIn:

    "The A.S.S. Slider and Clip together form an unbeatable combination of security and anti floppy bag"

    - UK Gravel Collective

    "A great product that easy high quality, easy to use and has many benefits such as a quick release system, removes any untidy straps and makes your bag more secure and stable."

    - One Track Mind

    "The ASS SLIDER does away with Velcro and allows you to remove the bag rather than taking your camera, phone, and wallet out if you stop for lunch somewhere, very neat."

    - Offroad.cc

    Customer Reviews

    Based on 12 reviews
    Work Number
    Quality parts

    Nice looking piece of kit. Will work best on a soft bag. Will likely use it post bike packing trip as it interferes with frame bag. The system does raise the bag a bit so won’t work on a hard bento box. (Tried on tt bike to remove straps of bento but left huge gap between frame and box.). Good otherwise

    Pyre of Fyre
    76 Projects' **** is Great but could Better

    Paid for 76 Projects' ****, for a gravel bike build, for an upcoming bikepacking trip. Heard a great many things about how said **** usage alleviates stress, especially on bouncy adventures, and truth be told, for short day trips it's pleased me much.

    That said, for an experience that truly blows my mind, I'd suggest the following extras;

    * A more compact o-ring hook fixture for the but that goes around the steerer tube spacer - which limits the use of older Di2 junction boxes on shorter stems (like those found on gravel bikes). The hook tends to stab the junction box when the handlebar (and stem) is rotated while turning.

    ** Stiffening the clip itself, and maybe increasing the ridge on the inside of the clip - I've found that the ridge acts as a rail to guide the clip into the clip spacer on the steerer tube. Being slim as it is, the clip tends to miss the spacer, and ends up sitting above or below the spacer instead.

    *** The slider could use a thinner VHB (very high bond) tape - I've found that thinner top tubes tends to induce some wobble on the slider, which might not conform entirely onto the top tube. I've now used acrylic-based VHB tapes that are thinner, which reduces the wobble considerably.

    **** The female half of the slider - not sure how to solve this, but maybe a slightly less tall threaded receptacle?

    The above said, it's still a great product - love it!

    Jose Garcia

    I got two as out a year ago and I recently purchase another one. I got it shipped from the U.K. And this one has a hook with a rubber band that attaches to the head tube.. like the improvement

    Steven Hyndman

    What a great product, now I can remove my toptube bag without unscrewing it from my frame all the time. Loving it 👌🏻


    A.S.S. Anti Strap System