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Thread: 851/888 racebike basketcase

  1. #161
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    Jan 2015
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    Chicago
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    Everything is ST4S--radiator, sensors, and all.
    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  2. #162
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    Video of dry breaks:




    Braketech cast iron floating rear finally arrived:

    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  3. #163
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    Chicago
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    Picked up aluminum front and rear axles from MVS. Nice quality and reasonable money, but the rear one is 10mm too short! The diameter and thread size are the same, but my old one is about 345mm and this one is about 335mm. Is there a wider Corse swingarm/axle or something?

    I had some very thin washers to replace the original 2.78mm ones, but the OD is smaller than I'd like. And it's still 5mm short. Each axle nut is 12.71mm wide. If they were 10mm I would probably bet spot on. Is that the case?

    Last edited by nine16; 06-15-2016 at 07:50 AM.
    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  4. #164
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    Jun 2007
    Location
    Australia, Gold Coast
    Posts
    258

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    Did you do anything with the marchesini magnesium brake carrier ?, I mean paint / powder coat / nothing ?

    Thanks
    John

  5. #165
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    You mean the piece that goes between the disc and the actual magnesium itself? No, that's how I got it.
    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  6. #166
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    Jun 2007
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    Australia, Gold Coast
    Posts
    258

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    Yeah, the piece between the disc and the wheel, I believe it is also Magnesium, so that's why I ask. I thought it would need protection from the elements, i.e painting etc ??

    Cheers,
    John

  7. #167
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    I picked up the smaller 17mm ID bearings for the front wheel, but what do I do about a spacer? Is there any off the shelf 17mm ID aluminum sleeve or do I need to have one made?
    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  8. #168
    Join Date
    Aug 2007
    Location
    Cornwall S.W. England
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    5,084

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    An original steel 851/888 one might fit (I've a spare one here), but I'd just get one made up in alloy...
    This's easier said/wrote than done though!
    I made up an overlength one to fit a 25mm Id bearing wheel to a 20mm Od spindle for my 851, it took some working out and time spent with "Engineers Blue" to achive the desired nil pinch/nil clearance needed.
    I was fitting later model lighter 5 spoke wheels to my '92 851 and as indicated above it wasn't a drop in conversion.

    Steve R

  9. #169
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    Jan 2015
    Location
    Chicago
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    Mostly biding my time until I can take the bike to DucShop for tuning this October.

    The rear axle is fitted but I still had the 20mm bearings in the front wheel. I got the necessary 17mm ones but I'm having a little trouble replicating the second end of the spool shape in the CAD software.



    The carbon fiber corse instrument surround was made for a smaller and difficult to find temperature gauge. I had ordered a diamond hole saw to fit the modern 58mm one and today I figured out how to make that hole without mangling the surround.

    Take two scrap boards, drill a guide hole in one, sandwich the CF face between the boards, position the new hole, C-clamp the sandwich, and drill the CF. Worked perfectly.









    Next up?

    Waiting for my carbon fiber fairing brackets to arrive.

    Taking the CF nose and tail fairings for paint.

    Finishing the wiring.

    Welding sensor bungs into the exhaust.
    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

  10. #170
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    Jan 2015
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    Chicago
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    324

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    Carbon fiber fairing brackets arrived.



    And I drilled a 58mm (2.25 inch) hole in the fiberglass "street" nose for a projector light. Unlike the photo, it will be recessed.







    '01 996R, '94 888 SPO Ltd, '88 851 Adamo racebike, '91 ZX-7R K1 homologation, '89 NSR250 MC18r5k, '01 Derbi GPR50/75, '71 CB450/500 café.

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