Mark Uker of CMU Enterprises 750 Chopper
Keepin Choppin Alive
Wacko
Posted 6/3/2009

first 750 shot

I met Mark Uker at this year’s V-Twin Expo. Mark’s company, CMU Enterprises, builds one-off frames at a very reasonable price. I was impressed at the cost, the look and overall craftsmanship. In fact, I am probably going to take an old Iron Head frame I have and send it to them to tweak a bit. They will alter stock frames for folks too which comes in very handy if you want to keep the VIN number for registration.

750 shot 1

In talking with Mark, I told them that I was in a sea of American V-Twin builders and I was at the event to cover Metric bikes and products. That is when he told me of his Honda 750 chopper. Mark did all the fabrication on the bike. Everything is made by hand and it was this bike that he developed his skills.

back end 750

Take a look at the cute little red head and the cool bike. I will be putting up stuff on the frames on Bikernet and Bikernet Metric when and where appropriate.

Check out the pictures for now and the tech chart. I always ask, “ where is the heart and soul of metric building….I have to say, it is right here and it is ALIVE! Wacko

Bikernet.com Extreme Tech Chart

Regular Stuff

Owner: Mark S. Uker

mark and model

Bike Name: Enya (Little Fire)

bike and model 750

City/State: Cookeville, TN

Builder: Mark S. Uker
City/state: Cookeville, TN
Company Info: CMU ENterPrise Inc
Address: 3818 S. Grundy Quarles Hwy, Gainesboro, TN 38562
Phone: (931)362-1220
Web site: http://mjcustoms.com/projects/79CB750K/main.php
http://www.cmuenterprises.net
E-mail: mark@cmuenterprises.net
Fabrication: Mark S. Uker

flame metal

Manufacturing: Mark S. Uker
Welding: Mark S. Uker
Machining: Mark S. Uker

Engine

engine 750

Year: 1979
Make: Honda
Model: CB750K
Displacement: 750cc
Case finish: Chrome Powder Coating
Barrel finish: Chrome Powder Coating
Head finish: Chrome Powder Coating
Carburetion: Stock rebuilt carbs
Air cleaner: Individual air cleaners for each carb
Exhaust: Custom by Mark Uker with hand cut flame heat shields.

heat shield 750

Mufflers: None.

Frame

Year: 2005
Make: CMU Enterprises
Style or Model: Hard Tail

frame 750

Stretch: 8” up 6”out
Rake: 36 Degrees

Front End

Make: Hand Made Custom Springer
Length: 6” Over

springer

Mods: Uses the rear shocks from the stock bike for springs

springs on 750

Sheet metal

Tanks: 800 Vulcan Tank Modified and stretched by Mark Uker

tank 750

Fenders: Are Flat Trailer fenders narrowed and flame cut for the front, widened and flame cut for the rear
Other: Battery box, leftside chain cover made to extend the left side case, the right side chain guard was made from 16 gauge sheet steel to resemble flame, Ignition Switch housing

Paint

Sheet metal: Mark S. Uker
Base coat: House of Kolor Cobalt Kandy Blue
Graphics: Hand laid flames with House of Kolor
Pinstriping: Mark S. Uker

Wheels

Front
Make: After Market Harley Chrome Spoke
Size: 21” X 2.125”
Brake calipers: Stock Honda
Brake rotor(s): Aftermarket Harley
Tire:

Rear
Make: After Market Harley Chrome Spoke
Size: 16”x3” Chrome Spoke
Brake calipers: Jay Brake with custom made mount by Mark Uker
Brake rotor: Aftermarket Harley

Controls

Foot controls: Custom Made forward mount controls by Mark S. Uker
Finish: Polished Aluminum
Handlebar controls: Modified older Honda controls and chromed by Chromemasters
Brake Lines- Russell braided brake lines with hand cast and polished aluminum clamps made by Mark Uker
Shifting:
Kickstand: Custom hand twisted Made by Mark S. Uker
Taillight: Hand cast aluminum and chromed with hand made LED light, and attached to the license plate bracket.

What’s Left

Seat: Hand made pan by Mark Uker and covered by Charity Uker, seat was made with a mountain bike shock with a pivot to ensure the seat does not move side to side.
Handlebars: Custom Made Ape Hanmgers by Mark Uker
Pegs: Custom made from aluminum tubing and polished by Mark Uker
Throttle cables: Had to be extended and made to fit the new design.

Specialty items:
Hand twisted sissybar
Bike is right side drive with a jackshaft designed and built by Mark Uker to be able to use a Harley rear wheel. There is a handmade pan under the gas tank that all electrical components are mounted to.

Comments:

This was a 2 year project that almost every piece was handmade or modified by me. All paint and powder coating was done by Mark Uker

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