Bikes – Proteus is an authorized dealer for Bianchi, Jamis, Kona, & Dahon

We have a large inventory in most sizes. We’re happy to do special orders and custom bike builds. For expedited delivery, shipping charges may apply.

  • Bianchi Bicycles – Road, cyclocross, track, urban/cruise.
  • Jamis Bicycles – Road, cyclocross, urban, touring, mountain, kids.
  • Kona Bicycles  – Mountain, cross, urban/commute, cargo.
  • Dahon – Folding.
  • Velo Orange Frames, parts, and accessories. Let us do your custom build!
  • Surly Bikes, frames.
  • Unicycles from and Sun — we stock and support (and teach how to use) these unicycles (ask for Ben!)
Food and Hydration

Dr. Allen Lim of Skratch Labs at Proteus bikes for TJROW from Greenbelt Bike Videos on Vimeo.


We’ve gone through a lot of different apparel companies trying to find the best ones. After years of hunting, we have had the BEST experiences in quality, sizing, and consistency with these fantastic companies. Including (but not limited to):

  • Louis Garneau -We have a great selection of Louis Garneau Jerseys, shorts, gloves, and shoes
  • Endura -Endura makes fantastic apparel and we are extremely happy to be carrying their product
Accessories and components

It would be IMPOSSIBLE to list all the accessories and components that we carry. But here are a few:

There are many more brands of items in the store, ranging from Strider bikes to Ibert child seats to you name it.  If it’s not in the store, we can probably order it in a day or two.  Orders usually go out on Mondays and come back on Tuesdays.