Bike Garage - The Bikini Project


Ultimate simplicity leads to purity.

Honda CB500 Four 1972 - Blacksquare Motorcycles



ENGINE, FUEL SYSTEM, IGNITION & EXHAUST

ENGINE: 1976 HONDA CB550.  Bead-blasted, completely rebuilt from the bottom up, bored +0.5 mm to 59 mm (the master cylinder bore is 58.5 mm) together with fitted alongside WISECO pistons (kit model pose out 40059M05900).  Compression increased to 10:1 from the master 9:1 together with displacement increased from the master 544 cc to 553 cc. Cylinder irksome together with valve chore past times TSI Competition Engines.

CARBURETORS: master KEIHIN, model 087A, completely rebuilt.

VELOCITY STACKS: one-off custom design, past times STEEL DRAGON PERFORMANCE.

TANK: asymmetric, one-off, in-house design, all aluminum, custom-built together with polished past times BCR DESIGN, capacity = 2.0 US of America gallons

PETCOCK: past times PINGEL, 6000 series

EXHAUST: modified master headers, ceramic-coated alongside CERAKOTE High Temperature Glacier Series coat.  (When polished, the appearance is that of polished aluminum.)

IGNITION COILS: Dynatek Dyna Coils 5-ohm Dual Output DC8-1; Black DW-200 Wires

POINTS: new, master HONDA


FRAME & SUSPENSION

FRAME: 1972 HONDA CB500, modified tail section, all master welds reason smooth.  Powder-coated inwards heaven blueish together with and therefore clear-coated past times TRICKED OUT CYCLES.

FRONT SUSPENSION: master HONDA, rebuild alongside novel tubes together with springs.

REAR SUSPENSION: custom-built past times WORKS PERFORMANCE gas shocks, 13.5″-long, Dual-Rate Springs.  (The enquiry close correcting the length of the kickstand when custom pause is installed comes upwards a lot, so, inwards anticipation that it would come upwards up hither again, the response is yes.  The kickstand was lengthened past times 1″. It was together with therefore polished together with chromed.)


WHEELS, TIRES & BRAKES

RIMS AND SPOKES:  past times Buchanan’ Spoke & Rim Inc.  “Sun” rims inwards polished aluminum, stainless steel spokes.

TIRES: MICHELIN Pilot Activ.  Front 3.25 – 19.  Rear 4.00 – 18.

FRONT BRAKE: dual-disc, drilled rotors, master HONDA calipers, stainless steel lines, banjo fittings together with 3-way splitter past times GOODRIDGE

REAR BRAKE: master HONDA


CONTROLS & INSTRUMENTS

CLIP-ONS: Vortex, 35 mm, 7-degrees, all aluminum

THROTTLE TUBE: G2 Ergonomics Quick Turn Throttle Tube 50-150D, all aluminum

GRIPS: past times ARIETE, model 02631-ALL, Alu-Rub Grips (polished in-house)

HAND CONTROLS: past times Eurocomponents, model: De Luxe Retro, all aluminum


REARSETS: past times JOKER MACHINE, model 09-800S, all aluminum, fully adjustable inwards all imaginable positions.

3-POSITION REARSET BRACKET: in-house design, allows 3 dissimilar positions for the rearsets depending on rider’s size together with riding trend preference.  CNC-machined from 6061 aluminum. The brackets are simply about 12″ x 5″ x 2″ overall (roughly 300 x 120 x l mm). There are 2 curvatures which offset the mounting points past times close 1/2″ (12 mm) together with the iii circular human foot peg positions are themselves some 3/4″ (20 mm thick) allowing the brake pedal together with clutch lever to clear the exhaust pipes.  It took a large chunk of aluminum to CNC-machine these.



CLUTCH AND THROTTLE CABLES: custom-made past times BARNETT

TACHOMETER: SMITHS Digital Chronometric CHR-R10; 0-10,000 RPM


ELECTRICAL:

HEADLIGHT: restored antique spot lite (the bucket was chromed, the reflector was nickel-plated) fitted alongside a STANLEY lens.

HEADLIGHT RELAY: mutual latch relay incorporated inwards the headlight’s bucket.

TAIL/STOP LIGHT: 30-LED TruFLEX past times Custom Dynamics.

BATTERY: 8-cell 240CA Lithium battery past times Antigravity

REGULATOR/RECTIFIER: past times RICK’S MOTORSPORT ELECTRICS, model # 10-100

HARNESS: custom 3-part harness terminating inwards aluminum aviation plugs; all bullet-socket connectors past times VINTAGE CONNECTIONS

PUSH-ON MOMENTARY MINI SWITCHES for the headlight together with starter button.


SEAT, SIDE COVERS & FENDERS:

SIDE COVERS: perforated aluminum, designed together with built in-house.

SEAT: designed together with built in-house, aluminum pan, 1-inch foam, marine-grade semi-perforated dark vinyl.

FENDERS: all aluminum, custom-built together with polished past times BCR DESIGN

EMBLEM: in-house design, 3M epoxy domed decal on dark background alongside chromed letters, custom-made past times CHROMED HOG


OTHER:

All Light Amplification by Stimulated Emission of Radiation cutting past times Keith Gayman.

All spacers together with other specialty parts were machined past times “uberacer” Gene at S&S General Services LLC

All welding past times primary welder Tim at Classic Cycles


SPECIFICATIONS:

OVERALL LENGTH = 80.5 inches (2,045 mm)

OVERALL WIDTH = 28.5 inches (724 mm)

OVERALL HEIGHT = 39 inches (991 mm)

SEAT HEIGHT = 29.75 inches (756 mm)

FOOT PEG HEIGHT: Position 1 = 12.25 inches (311 mm), Position 2 = 13.00 inches (330 mm), Position 3 = 13.75 inches (349 mm)

DRY WEIGHT = 357 lbs. (162 kg)

NOTE: The listed dry out weight of an master 1976 HONDA CB550 is 423 lbs. (192 kg).





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