509 Cycles

Making Bicycles For You! Taking pride in what you do really makes a difference. We don’t take history for granted, rather we learn from it.

From learning comes mistakes, but from those mistakes comes a greater accomplishment and better self cause. Our friends and family are the ones who gather your strength and influence the greatness inside. While society may be lacking in this, we fall back to a time where living was not taken for granted and a sense of pride went into everything made. The time around World War Two was hard for seve

06/03/2024

More hardtail Up n Atom frames are on the way. A few of each size will available. Reach out if you are interested!

05/27/2024

Happy Memorial Day hope ever is getting out and staying safe!

Photos from 509 Cycles's post 05/03/2024

Ready for the Bear 100! hit it out if the park with this anodizing!

Photos from 509 Cycles's post 03/27/2024

Got my frame back from and could not be happier. We have a few more bikes headed his way so stay tune. Otherwise happy gravel!

03/12/2024

is taking on the triple crown this year!

Photos from 509 Cycles's post 02/23/2024

getting the up n atom out into the wild where it belongs!

01/30/2024

Gravel is always in season!
📸 from

01/28/2024

The up n atom made its way to Columbia! Always excited to see the adventures our bikes take us on! More to come from her bike trip!

Photos from 509 Cycles's post 01/22/2024

Great times fat bike open this past weekend! Thanks for everything who came out and everyone that made it possible!

Photos from 509 Cycles's post 12/18/2023

The Up n Atom build for ! Getting ready for some series miles and trips on this bike!

10/05/2023

Fall colors are happening! Great time to get into the hills on or off the bike!

09/29/2023

Fall riding is the best !

09/25/2023

Necessary EVIL V2 is in stock and ready for your build! We have 4 sizes to choose from and unlimited amount of ways to build them up! Titanium frame with UDH hanger and amble amount of tire clearance! Reach out to us directly or to for your custom build.

Photos from 509 Cycles's post 09/01/2023

It’s pretty awesome to sell your friends bikes to take on some amazing adventures!

Photos from 509 Cycles's post 08/15/2023

This weeks up n atom build features some very classy bronze accents! and for the color combo!

Photos from 509 Cycles's post 08/02/2023

This weeks build color with some purple additions! Pretty fun each customer is wanting a different color line! Who’s next and color are we going with!?

Photos from 509 Cycles's post 07/21/2023

Happy Friday! Color groups have been going out the door! We have some orange spice on the up n atom!

Photos from 509 Cycles's post 07/14/2023

Josh is off to the UP for the Crusher 205 with his newly built 509 Ti Necessary Evil!!! There is so much going on with this build 🤯 if completed Josh will be inducted into the Hall of Pain! Let’s gooooooooo

Photos from 509 Cycles's post 07/12/2023

The v2 necessary evil is ready for the crusher this weekend! with all the fine details and amazing builds as usual!

Photos from 509 Cycles's post 06/21/2023

A new Up an Atom out the door! Custom build with some red bling! Set for bike packing, single track and gravel rides!

Photos from 509 Cycles's post 05/22/2023

Custom Necessary Evil v2 going out the doors and ready for some adventures!

58cm frame pictured.

05/12/2023

The up an atom kicked up a notch on this build! Light weight ready for any kind of adventure!

05/05/2023

Full send into the weekend with the new Necessary Evil Mark II at the Bear 100 and followed by WORS Iola with a 509 Ti hardtail SS. Let’s ride 🚀

Photos from 509 Cycles's post 04/05/2023

Necessary Evil V2 frames are on there way! Bigger tire clearance, updated geometry and internal cable routing makes this v2 even more versatile! Small run of these frames so get your pre order in! 52cm - 58cm.

01/27/2023

So excited on how on necessary evil v2 is riding and the capabilities of it!

11/18/2022

Frames are back in stock and ready for the holiday season! Check out the Up An Atom on our web for more details!

11/05/2022

Introducing the “Up An Atom”! This is what I say to my daughter every morning! Getting up and ready for an enjoyable day. This bike is super versatile and made out of titanium. What isn’t there to enjoy. Check out our website for more info!

11/04/2022

Things are picking back up! Getting in new prototypes and our order of hardtails should be here shortly! More info can be found on our website!

10/05/2022

Getting more test miles on the new hardtail! Frames are coming soon!!

08/12/2022

Good news! We have been working on some new bike designs and partnering with the new manufacturers to get some bikes to the market! It’s been a rough two years with the shortage but happy to say we have new stuff in the works!

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Videos (show all)

Co-owner George Kapitz ripping the Harlow Trails in Marquette, MI.
Jumping into weekend! #509cycles #fatbike #squilchuckstatepark #cyclinglife #washington #playallyear #fatbikes
Four races, series points, food, beer and FUN!
Jumping into Monday! It's going to be a good week! #509cycles #29erplus #29plus #fatbike #singlespeed #wisconsin #snowkr...
Aaron Taylor taking the Jabit for a ride! #509cycles #packers #greenbay #wisconsin #fatbike #playallyear

Address


115 Pine Street
Green Bay, WI
53201

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