Interested in getting yourself a custom US-made steel monster-gravel bike? Black Cat Bicycles just opened up orders for the 2020 Hello Monsta!, and it looks like it rips. Find all the details and photos here…

Posted by Miles Arbour

Based in Aptos, California, Black Cat Bicycles designs, fabricates, and paints some truly impressive custom bikes, all in-house. Every frame and fork is custom sized for the rider, and available as a frameset or a custom complete build. Hello Monsta! is their big-tired gravel bike, or as Black Cat puts it, “The perfect gravel bike, scaled up.” It’s designed around 27.5×2.4″ tires, boost hub spacing, a 73mm threaded bottom bracket, and a custom blended rugged tubeset for aggressive riding. The Hello Monsta! starts at $4,600 USD for a frame and fork, including a White Industries custom crankset and headset. Complete build options are endless, so it’s best to contact Black Cat Bicycles to learn more.

Black Cat Hello Monsta
  • Black Cat Hello Monsta
  • Black Cat Hello Monsta
  • Black Cat Hello Monsta
  • Custom sized frame and fork, tailored for you
  • 110 x 15 and 148 x 12 hub spacing
  • 1x or 2x drivetrain
  • 27.5 x 2.4” or 700 x 40c tires
  • 1 1/8″ threadless unicrown fork for maximum ride quality
  • Front and rear flat caliper mounts for maximum versatility
  • 27.2 or 30.9 seatpost, internal dropper port if desired
  • S bend seatstays
  • Art School dropouts or Swinger single speed dropouts
  • Cable or electronic shifting
  • Drop or flat handlebar
  • Dear Landlord rack available, but not included
  • Original paint always available and starts at $1000
  • Head over to to learn more
Black Cat Hello Monsta

To see more of Black Cat Bicycles’ work, check out this article on their steel hardtail, the Holy Mountain.