Recently we got a call from a customer who really liked a handlebar we were selling. In fact they wanted to build an entire bike out of it which is like putting together an entire suit based around a tie. Not that any of us have ever worn a tie (or a suit for that matter), but you get the idea. So while we might not be Fashionistas we ARE a bunch of Wizards when it comes to building rad bikes.

Enter the Kona Unit “Dirt Dropper”:

Kona Unit Dirt Dropper gravel grinder
The Unit comes standard as a flatbar singlespeed steel mountainbike. It’s a good offering from Kona’s lineup. Mix in the crafty mind of Erik Tonkin and it becomes a whole different beast.
Kona Unit Dirt Dropper gravel grinder
The Dirt Dropper makes for a really fun ride especially when it’s a singlespeed.  No need to slow down when the pavement ends, and it begs you to put it sideways around every turn. Fast, simple and reliable. An excellent Adventure Cycle! Strap bags to it for the Oregon Outback, disappear on a long distance trail ride, or just shred around the city. Sprinkle on your Brooks creature comforts and it’s a real head turner (one you could definitely wear a tie with).
Kona Unit Dirt Dropper gravel grinder
Kona Unit Dirt Dropper gravel grinder
Kona Unit Dirt Dropper gravel grinder
Kona Unit Dirt Dropper gravel grinder
Kona Unit Dirt Dropper gravel grinder
Kona Unit Dirt Dropper gravel grinder

Build Specs:

  • 2014 Kona Unit (Reynolds 520 butted chromoly)
  • FSA Contact Cranks, Gravity bashguard, FSA MegaXO BB)
  • Avid BB7 disc brakes (180 front, 160 rear)
  • Maxxis Ardent 29×2.25″ tires
  • 44cm Kona Wet Bar
  • Brooks springer saddle and bar tape

Kona Unit Dirt Dropper gravel grinder
Kona Unit Dirt Dropper gravel grinder

One Response to “Singlespeed Dirt Dropper”

  1. Oerjan on

    Hi!
    Lovely build!
    I have 2013 Unit my self, but I have problems finding a good setup. When using dropbars the bars are way to low for my liking, and the only way to get the bar high enough would be to buy a new fork I can put more spacers on. I also wonder if it helps to go up a frame size using this setup. Also really don’t like a too long seat post from a design point of view.. Would be happy for your advice!