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Introducing the Riv...

Many people look at the Riv as a mini-Biblio. However, GiantMouse did not just shrink a Biblio to do the Riv. GiantMouse started over and completely redesigned a new knife in the lines of the Biblio, but with its own feel and expression. This was also the way they designed the Biblio, from the lines and concept of the GM1. Of course it would be easier to just scale a knife model up or down to any size you think would sell well, but GiantMouse doesn't work that way!

Why a compact knife?

Designers Jens Anso and Jesper Voxnaes grew up spending time out in nature, working the forest and doing chores around the house. They were taught that when you work or hike, you carry a fixed-blade and a small folder. The fixed blade will perform most of the cutting tasks, but the folder should be kept razor sharp for finer tasks and be your back-up, if the fixed-blade is lost or dulls. These days most good quality folders can handle most of the jobs of a mid-sized fixed-blade, but it is still great to have a sharp back-up. And with the “Riv” you get a compact folder that will handle most daily cutting jobs, and will surprise you once you get it in hand. A tool, not a gimmick!

A little piece on how GM name their models:

We’ve got a thing for naming our knives after special places that have endeared themselves to us over the years. The Biblio’s namesake was a favorite watering hole of the GiantMouse team in Brooklyn, where the idea for our new knife brand was formed. The Grand is named for our favorite hotel and bar in Nuremberg.  The Clyde is named after the Clyde Commons bar in Portland, which was part of the ACE Hotel, for which our ACE line of knives is named. Well, in 2020, GiantMouse moved its headquarters from the San Francisco Bay Area to East Lansing, MI.  So we felt it only fitting that we should commemorate this event by naming our latest model after an equally meaningful local establishment. Turns out “The Riv” is an historic local dive bar in East Lansing that was frequented regularly by GiantMouse CEO Jim Wirth while he attended Michigan State University in the second half of the 1980s. The bar is still a local landmark today, and as soon as the Danish contingent of the GiantMouse team can travel again, you can be sure to find us hanging there on the corner of Albert and M.A.C. Ave. If we’re not there? - check next door at Pinball Pete’s.

Giant Mouse Ace Riv Brass Australia
Giant Mouse Ace Riv Brass Australia


Ace Riv Titanium Australia GiantMouse

GiantMouse ACE RIV Blackout Titanium EDC Folding Knife


Blade Steel:  M390
Backspacer: Titanium or brass for Ti model
Clip: Wire
Pivot Mechanism:  Ball bearings.
Locking Mechanism:  Titanium Frame lock.

    Blade Length:  2.44" (62mm) - measured from tip to forward-most aspect of frame
    Blade Thickness:  0.118" (3mm)
    Handle Length:  3.375" (85.73mm)
    Overall Length:  5.75" (146mm)
    Weight: 96.4g (Brass) | 79.4g (Ti)

    Manufactured for GiantMouse by Reate Knives

    Customer Reviews

    Based on 3 reviews
    Great EDC

    This is a fantastic little EDC knife that is well built, ergonomic and non threatening.
    Very happy with the purchase.

    Hannes Badenhorst
    Perfect little companion

    This is a bloody awesome little edc blade. Razor sharp out of the box with fantastic edge retention. I love the finger flick action (even if it took some getting used to). Carry it with you and you will find you use it way more than a more cumbersome knife.

    Little ripper of a knife

    Hi Hannes,

    Thanks for your review of the GiantMouse Ace Riv! It sure is a solid ripper of a knife! Glad you're enjoying it.


    Another great purchase

    Another great purchase with a perfect knife and even better service

    Thank you very much for your review of the ACE Riv Jed! It sure is one great knife. Hope it serves you well!