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The bike turned out really nice - I'm impressed with the work on the suspension changes, good job and a bold one at that. My only question is the clearance for the tag... almost looks like it would need to be on a hinge to let it swing forward when the rear wheel goes deeply into its travel!
 

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Discussion Starter #83
It's true, I had to modify the license plate bracket after that day. It is now higher, and angled in, so that there is about 3/4" of clearance at the highest rear-wheel suspension travel. Good catch!
 

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Discussion Starter #84 (Edited)
Initial Goal: Take an older motorcycle, and rebuild entire bike from scratch, learn as much as possible about motorcycle systems (engine, suspension, electrical, riding ergonomics, welding/fabricating, body work, painting, etc.), and make a one-off cafe racer with modern parts. Must include conversion to monoshock and single-sided swing arm.

Summary of the build....
- Donor Bike: 1982 Honda CM450, kept the engine, chassis, fuel tank, and triple-tree top nut (lol)
- Front Suspension: 2006 CBR600rr (forks, wheel, brakes, etc.)
- Swing Arm & Rear Brake: 1990 Honda Hawk NT650 single-sided swing arm
- Rear Suspension: 1981 Honda CB900F rear shock
- Rear Wheel: 1996 Honda VFR750 Interceptor
- Subframe: Custom built from scratch by owner, then professionally welded by Mountain Man Welding, Denver, CO
- Cafe Seat: Custom mold from scratch by owner, fiberglass & epoxy
- Paint: P36 Mitsubishi Eclipse & 2-part epoxy clear coat, 100% by owner
- Electrical System: Designed and wired from scratch by owner (Lithium battery from Shorei, Voltage reg/rec from Ricks motorsports)
- Tank Logo: Custom designed with owner/designer's initials "JC" inconspicuously in background
- Rear Brake Disc & Line: Andy from Cycle Brakes, Sherman Oaks, CA
- Front Sprocket: Custom built by Superior Racing Sprockets, 5/8" offset to resolve swing-arm
- Rear Sprocket: Custom by Rebel Gears Inc., 40tooth, Aluminum
- Rear Sets: Custom designed by owner, and plasma cut by DenCol, Denver, CO
- Carburetors: Mikuni slide cards & red air filter pods
- Tires: Michelin Pilot Power, Front 120/70-ZR17, Rear 170/60-R-17
- Gauge: Koso TNT-01
- Rear lights/blinkers: Flexible LED strip
- Headlight: SpeedMotoCo
- Front Blinkers: MotoGadget M-Blaze

Special thanks to...
- Steele's Cycles: Many random OEM replacement parts from the various Honda bikes I incorporated
- Dime City Cycle: Mikuni Carburetors and many other small parts & pieces
- Blast Tech, Denver, CO: soda-blast for engine
- Colographics: Vinyl sticker tank logo
- Auburn Tool & Machine: Custom machined rear brake bracket & extended threads on Nt650 rear spindle
- Earl Froman (RIP): Welding for new swing-arm pivot hosing in OEM chassis and rear mono-shock top mounts
- Kelly McTeer: Engineering cohort and overall master problem solver
- Noah Roberts: Tank logo design
- HondaTwins.net and Jim (longdistancerider) for being such a great resource and helping with my random questions
- DoTheTon.com for much of the same!
 

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Well done. Hard to see the forest from the trees in a build over time but you nailed it! I could not figure out the monoshock with mine.
 

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Discussion Starter #89
Here's a little update after riding it occasionally over the winter, and about 120 or so miles this spring. There are a few tweaks I need to make. Sure feels like pure gold driving down the road!!!

- Move start button under seat from right side to left side... so left hand can start, and right hand can throttle... DUH!
- Replace rear shock with same... I removed the nitrogen cylinder in the first one, and seems the dampening just isn't there... DUH!
- Replace left side rear-set bracket with a taller bracket to give more clearance to chain during downshifting. Add chain guard for smoother chain movement through that area.
- Carb float bowls are overflowing so need to clean out carbs and replace fuel filter. Might have had a little crap left in the fuel tank.
- Figure out why Koso gauge isn't picking up rpm signal from ignition coils. Might have to wrap a wire around one of the spark plugs.
- Re-fabricate bracket for kickstand for better storage angle and location while riding and less play while supporting bike.

CM450C_2019-5-14_1.jpg CM450C_2019-5-14_2.jpg
 
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