Bernard – 4130 Core-Line
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Bernard – 4130 Core-Line
Classic hi-gloss black frame, with new polished chrome parts, and gum-wall tires. An instant classic.

Whether you want a clean classic look or a sporty-aggressive aesthetic, you can build the bike you want choosing your size, bars, and now wheels!
Customize your build

Advanced geometry, next-level design, and the flexibility to customize your bike from top to bottom have made our core line the most enduring choice for riders of all levels & styles. The quality is in the materials we select and components we trust.


  • FRAME:  Double Butted 4130 Grade Chromoly Steel
  • DROPOUTS: Die-Cast Dropouts Featuring Internal Chain-Tensioners
  • WHEEL SET:  Choose from our 'Lo-Pro' Wheels or 40mm Deep-V Style Wheels - Both w/ Sealed Bearing Hubs
  • FLIP-FLOP HUB:  Easily Ride Fixed Gear or Single Speed
  • HANDLEBARS:  4 Styles: Bullhorn, Drop, Riser & Pursuit
  • BRAKES:  Includes Front & Rear Brakes 
  • PEDALS:  Includes Alloy Pedals from Wellgo
  • SADDLE:  Includes Synthetic Leather Saddle w/ Steel Rails 

SIZE:  6 Frame Sizes to fit any Rider Height from 4'10" to 6'6" (Size 55cm Pictured)

WEIGHT:  20lbs 1oz w / Lo-Pro Wheels or 21lbs 12 oz w/ 40mm Deep-V Style Wheels
*(Weights Taken Using a Size 55cm Frame w/ no Brakes or Pedals)


Risk-Free Purchase - State Bicycle Co. offers FREE EXCHANGES* -If this item doesn't work out, we'll send you a return label and exchange for free!

      Click Here for Size Chart and Specs

      RETURNS & Exchanges: State Bicycle Co. proudly offers FREE RETURNS for EXCHANGES - please see details of our Return Policy here.

      SHIPPING:  Most in-stock items ship within 1 business day! Tracking information is provided upon shipment. Learn more about our Shipping Policy

      ASSEMBLY:  Ships 90% assembled. We strongly encourage having your bike professionally assembled.

      WARRANTY:  Warranty activated when you submit proof of professional assembly. 

      • 5-year Warranty on all bicycle frames
      • 1-year Warranty non-consumable parts
      • 2-year Warranty on Essor USA products

      Learn more about our Warranty Policy.

      We pride ourselves on having a friendly and knowledgeable staff. Contact us and we'd be happy to help you out in any way we can.

      Customer Reviews

      Based on 12 reviews
      My first Steel Bike

      I gotta say you guys got it right with the freewheel side. I can pedal. The 45 /14 fixie is another story. I am buying an 18 for that side so I can ride the fixie over hill and dale! I love the black bike and I love the weight of it on my commute to and from work each day! Thanks so much!

      200 Miles and counting...

      I have 200 miles on my State and I am loving it. I did an unboxing video you can check out here.

      Bernard 4130

      Very happy with my new bike! Customer service was great as well!

      Sad to see the 4130 disappearing

      Tubes aren't the best but the frame geometry is perfect for my short girlfriend, whom has already put 10 miles on it with no complaints.

      Fantastic bike

      I've owned far more expensive single speed bikes that aren't as good as this one. And it looks fantastic. People keep asking me about it.

      Great product, State Bicycle Co.

      Cool Ride

      I got this bike because of its aesthetic appeal after searching thru all the single speed reviews. I like the simple appeal, devoid of neon and such. The best surprise was picking up the bike - it was very light. The gear ratio makes for real fast going on flats and only somewhat challenging hill climbs (I live in a flat area so my hills don't go on forever). So far, although not as comfortable as my hybrid bike, I still use it to commute over Dallas' rough roads because of how zippy and responsive it is. Exactly what I was looking for.

      Exactly what I hoped it would be

      I have loved riding this bike! It is so smooth, so simple, and enjoyable to ride. I would definitely recommend this bike.

      Great Bike!

      I use this bike for commuting to school. It looks great, rides smooth, and has a decent price. Only this I would upgrade would be the tires, other than that very satisfied!

      Good fit, but I had

      Good fit, but I had to true both wheels.

      Great bike terrible customer service

      Started horrible got better after a local Colorado bike shop helped me after you guys wouldn't listen to me. Terrible customer service but great product. Won't be buying from you again due to your customer service which is a shame because the bike is working out well after the local bike shop got it in order.