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    dimanche 28 avril 2013

    Erwin SR500 by BCM


    Kim Boyle's personal SR500 lit up the innerweb last year after its debut at the Chop Meet. A year later he's built another one, this time for a customer. Broad-stroke basics like the stance are obvious, but under closer scrutiny lots of hand-made details emerge. Here's what Kim has to say about it:
    ERWINSR500_2.jpg
    Bike name: Erwin SR500

    Year and make, model, modifications:  1978 Yamaha SR 500. Top-end rebuild with a little head work, Mikuni VM36 carb, stainless header pipe with a an open reverse megaphone

    Frame: Stock SR

    Fork: Stock SR shaved legs, lowered 2.5" Progressive springs

    Chassis mods: Rear shortened 8" all unnecessary brackets removed and cleaned up, new fender mounts, hack the stock fender to fit. Progressive 1200 series shocks 1" lower than stock
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    Tire/wheel size and style: Stock Yamaha Mags 19" front 18" rear.  400-19" front- 450-18" rear, Firestone Deluxe Champion tires

    Favorite thing about this bike: Probably the rear brake set up, My buddy Pat machined the rotor turning the center holes from rectangle to round and then drilled the rotor surface. then machined a brake stay, I cut down the caliper hanger by a lot, added a braided stainless line, trimmed the pedal down to a circle. It all cleaned up real well.
    Next modification: Modifying it out of my garage and into the owner's hands

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    Other mods, accessories, cool parts, etc: two-piece headlight mount, Ductati monster front caliper & rotor w/ a Honda CR125 master cyclinder, SS brake line, hand-made brake line guide. Chain side case cover cut way down and a guard added. I fabricated the license plate/taillight bracket; Pat and I worked out the taillight, Biltwell supplied the reg tube. The tank is a Yamaha GT80 tank painted by Jaymes at Blue Moon Kustoms. Duane Ballard did the seat to the owner's specs. A ton of cleaning and polishing.
    ERWINSR500_details1.jpg

    Thanks to:
     
    Frances Bernal for the support and putting up with too much garage time.
    Pat McCormick at Cutting Edge CNC, for the work & helping keep my head
    on straight.
    Rob Warren for being a garage mate & putting aside his own project to help
    Paul Wisniewski--badge art
    Duane Ballard--leather work
    Blue Moon Kustom--Tank paint
    Wes Drelleshack--wiring/photos
    Olympic powder coating, Escondido, Ca
    Thumperstuff, your SR headquarters

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    You can download a desktop background of The Erwin SR500, shot by Wes Drelleshak by clicking the photo above.
    from chopcult.com

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