Detroit Bikes U.S. Chromoly B-Type Commuter Bike


Detroit Bikes U.S. Chromoly B-Type Commuter Bike


The B-Type is the step through version of the classic A-Type 8-speed city bike.

This bike is reliable, fun, and easy to put together. We include a free Detroit Bikes floor pump with every order.

This is a bike made for all purpose city riding.
The fenders will keep you dry and the rack allows you to transport your homework, legal briefs, or a bag of tamales.



The companion to our A-type, the B-type is the ultimate lightweight step-through city bike, made out of premium American chromoly.

Beautiful hand-welded frames are available in Slate Gray and Rose Gold finishes.
This bike was made to last a lifetime.

Our American made flagship bikes are designed for city riding in style, featuring premium components throughout.

Product Highlights:

  • Shimano Alfine 8-speed Internal Gear drivetrain and shifter.
  • Brooks B-67S genuine leather saddle with coil springs, made in England. Rain cover includes.
  • New Detroit Bikes aluminum rear rack with U.S.-made birchwood platform.
  • Genuine leather grips.
  • Schwalbe Road Cruiser whitewall tires.
  • Anodized aluminum handlebar.
  • Rustproof KMC chain.
  • Nuvo NH-KC19AA Silver Alloy kickstand.
  • High-polish cold-forged aluminum crank arms.
  • Bell.
  • Ships 99% assembled in an extra-large box.
  • Comes with a Detroit Bikes floor pump.
  • No questions asked 30-day returns.
  • Free shipping

U.S. Chromoly B-Type Product Specifications:

  • COLORS: Slate Grey or Rose Gold
  • SIZES: S, M
  • Weight: 33 lbs
  • FRAME: B-Type step-thru, 100% made in Detroit from US-made CrMo steel.
  • FORK: CrMo steel, one-inch threaded. Box crown.
  • HEADSET: Threaded one-inch, chrome-plated Sealed.
  • REAR DERAILLEUR: Shimano Alfine 8 Speed Internal Gear
  • CRANK: Cold-forged aluminum, silver anodized, with removable 44T chainring.
  • REAR HUB: Shimano Alfine 8 Speed Internal Geared Hub, nutted axle, 36-Hole
  • FRONT HUB: Formula aluminum, 36-hole. Nutted axle. Sealed.
  • RIMS: Aluminum double-wall with cnc’d brake track. 700c,  36-hole. Silver anodized.
  • SPOKES/NIPPLES: Stainless steel with nickel-plated brass nipples
  • PEDAL: Polished aluminum platform with sealed bearings.
  • SHIFTER: Shimano Alfine 8 Speed Trigger Shifter
  • CASSETTE: Shimano 19T Cog
  • BRAKE LEVER: All-aluminum 3-finger type.
  • BRAKES: Center-bolt side-pull. High-polished aluminum arms, with cartridge-style premium pads.
  • BAR: Brushed Aluminu. Ergonomic, with rearward sweep.
  • STEM: Forged aluminum riser, silver anodized. Easy height adjust. 1-inch quill type.
  • TIRE: Both Colors – Schwalbe Road Cruiser, 700 x 35c, Puncture Resistant Kevlar Belt, White Wall
  • SADDLE: Brooks B-67S genuine leather saddle with coil springs, made in England. Rain cover included
  • GRIP: Genuine Leather Grips, Brown
  • SEATPOST: Aluminum, silver finish. 26.6 mm x 320mm
  • EXTRAS: Custom-made Detroit Bikes rear rack and fenders. Aluminum kickstand.


Detroit Bikes

Detroit Bikes makes their bikes right here in the USA, in Detroit, MI. In fact, they are one of the largest bicycle frame manufacturers in the United States, and probably the only ones making truly affordable bikes for everyone. Detroit's most well-known bike is probably the Sparrow, the ~$400 aluminum bike they first launched through Kickstarter. They have recently launched an electric version of the Sparrow, dubbed the eSparrow, at just below $1000. Detroit bikes, especially the Detroit A-type and Detroit B-Type (step-through) models,  are extremely popular with commuters.

Additional information


Medium, Small


Rose Gold, Slate Grey


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