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Thread: '92 851, Street to Racer Diet / Transformation

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  1. #1
    Join Date
    Jun 2007
    Waltham, MA

    Default '92 851, Street to Racer Diet / Transformation

    I'm on my 3rd early superbike, 888 SPO, '92 851 which I always regretted selling, and the '92 I bought about 6 years ago to replace her. Problem was, I was riding them less and less on the street and always had a proper race bike for track so they were just sitting.

    I'd accumulated a bevy of parts over the years, sourced from folks here and elsewhere... and two years ago finally decided to take her off the road and convert her to full time track and vintage race duty.

    I just received one of the last bits to go on prior to this year, a Ballistic Evo3 EVX16/L-12 Lithium-Ion battery. For giggles I looked up the specs for my general battery of choice for older Ducatis, an Odyssey PC680, which has a shipping weight of... SIXTEEN POUNDS. The Ballistic I just received weighs 2.5 lbs.

    So I started running some numbers:

    Battery: -13.5 lbs.
    Gastank (ETI): -6.3 lbs.
    Alloy Subframes: -5-7 lbs. (I didn't weigh for comparison, but I am going to guess at least that F&R)
    Magnesium Wheels: -15 lbs (approx, F&R)
    Bodywork (Full CF): -10 lbs (approx, my old tail was a fiberglass solo tail w/ Corbin seat, it was *heavy*)
    Exhaust (SilMoto Spaghetti Full): -5 lbs. (Not a ton of weight savings but I reckon at least this much over the system it replaced w/ stock headers).
    Flywheel (916SP): -1.5 lbs (4 lbs stock vs 2.5 lbs)

    I may be over / under some of these estimates but I feel safe to say she's roughly 50-60 lbs lighter than she was 2 years ago. I wish I'd weighed her in full street trim as I bought her. I will get her on the scales next time I'm at NHMS though, and report back.

    Claimed wet weight stock was 462 lbs. (I have no idea if that is close to reality?), which would lead me to expect her to be fairly close to 400 lbs. at this point. She puts 92 of the finest Italian horse power to the back wheel, so the diet should help quite a bit!!

    Anyone else have real weights of their bikes to share? I have no other light modifications, no titanium on her anywhere, no mag covers, etc...
    Last edited by scottieducati; 03-30-2018 at 12:41 PM.

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