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TRX850 Cafe Racer

This is a discussion on TRX850 Cafe Racer within the Project Builds forums, part of the Caferacer.net Forums category; Hi Gents, So late last year I got a cheap TRX850 and so.... project time. Here is how it starts... badly shitter.. Notice the Wheels.... ...

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Thread: TRX850 Cafe Racer

  1. #1
    Member knumbnutz's Avatar
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    TRX850 Cafe Racer

    Hi Gents,

    So late last year I got a cheap TRX850 and so.... project time.

    Here is how it starts... badly shitter..




    Notice the Wheels.... Marchesini. I sold those for more than I paid for the bike !!!

    and the Brakes... Brembos.... SOLD as well.. and forks and dash and so on.





    Removal process begins



    Last edited by knumbnutz; 08-04-2016 at 05:24 AM.
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

    www.flickr.com/photos/knumbnutz ....look in the albums

  2. #2
    Member knumbnutz's Avatar
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    so collection of parts begin...



    did i mention I have a fetish for single sided swingarms mwahaaaaaaaa

    Something rather Shocking....
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

    www.flickr.com/photos/knumbnutz ....look in the albums

  3. #3
    Member knumbnutz's Avatar
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    Curved R6 Radiator




    Time to cut up the frame....



    STAY TUNED to the next episode of FrankenREX where I graft on a subframe from a Ducati 1098 to TRX frame.

    Goodies list so far -
    Triumph 1050 2013 Single sided swingarm + Wheel
    Hyperpro Shock
    R6 Radiator
    2008 Yamaha R1 Forks, wheels and radial 6pot calipers
    Aftermarket billet alum Rearsets'
    Keihin 41FCR carbs and filters
    Programmable ignition
    Carbon fibre seat cowl and under cowl
    Billet tank cap
    Silicon hoses
    Stainless screw kit
    Billet clip ons
    Billet Mirrors
    Billet indicators
    Wave billet alum headlight

    Need to get/make
    Billet triples - make
    Pipes - under seat or under motor ??
    Speedo
    rear tyre
    Paint tank and frame
    rewire

    probably missed a poop load of things...
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

    www.flickr.com/photos/knumbnutz ....look in the albums

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  5. #4
    Member knumbnutz's Avatar
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    Some bits fell off
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

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  6. #5
    Senior Member drgonzo's Avatar
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    I really like that cafe racer in the top pic. The red one.
    steveo, Geeto67, kerosene and 1 others like this.

  7. #6
    Senior Member Geeto67's Avatar
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    I don't know why you sold the wheels, those were the same as ducati units of the era and are tits. I think the forks are the same marzocchi units too and the calipers are brembo (I don't think those were stock as I have heard the stock ones were junk). I can't imagine what you will put on wheel wise that's literally better for a budget. Personally I would have just painted them ducati wheel gold and run them as it is.

    this is a pretty daring project. The TRX was built literally to punch the ducati 900SS Cafe racer in the mouth and despite it's slightly odd proportions, the 270 degree crank parallel twin configuration is odd for sure but a lot of modern parallel twins are using it including the new MT-07. I am not sure how hacking the frame on the back end is going to produce a better riding motorcycle but we will see.

    If I have one complaint for this thread it is that you are really being skimp on details because you think you are being "funny". E.g. you show a picture of a shock and say "something rather shocking". STOP. It isn't as funny as you think it is in your head and cheats literally everyone reading this as to why you picked the part that you did. Write more, not less, and give real details. You can still be funny, but funny without details is just mildly annoying.

    In my head I see this project coming out to something similar to this custom 900ss ducati:
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    Which is awesome and honestly there need to be more bikes like this in the world


    If you are building something like this:
    Name:  ub-13-img_1948.jpg
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    please don't.
    pwalo, knumbnutz, Andyshep and 1 others like this.
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  8. #7
    Member knumbnutz's Avatar
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    You're right I should add more details.
    Firstly I'll address some of things you mentioned.
    The bike was in bad condition, the forks were bent, discs were worn and needed replacement.
    Back in 96 I had a new TRX and loved some things about it, specifically the engine but hated the front end. It was vague and spongy and brakes had wooden feel.
    I am 6'1 and fairings unfortunately make my riding experience uncomfortable unless I am in a racer crouch, whereas I find non faired bike windy but evenly pushing the air across the body and taking some of the weight off my wrists.

    Next is what did I want to achieve out of all this?
    A modern styled cafe racer, something you can look and think it was made by mv or ducati. Parts that all work together and most of all be great fun to ride.

    The trx had a good motor, but they were made on a budget, the suspension, paint were all done to bring a bike to market for $12k in Australia when all the other bikes in the same ranges were at least 15k and ducati 900ss were up about 17k.

    Some things you can spend a lot of money renewing like forks and shocks and be left with shiny new pieces of junk which weren't going to fit a modern look or function.

    So moving along, I found a 2008 R1 front end in virtually new condition for $700, the radiator is off an R6 and I wanted a curved radiator to replace the damaged one on the original bike.
    The shock is made to emulate the rates of the works trx racers. Hyperpro seem to have a good reputation and they were made to spec.

    Why a single sided swingarm then? Because i love the look. No other reason. They work like another swingarm but it now becomes unique.
    Yes they are heavier but on the road it's not particularly noticeable and I'll dial in the shock to suit. It also gives me the ability to use modern tyres.
    I found the swingarm in the USA for $245 and had it shipped. Then found a wheel in Italy.
    I had a VFR swingarm already but it was too wide to fit whereas the triumph speed triple single sided swingarm 2013 model gave me room to offset the sprocket and position the wheel centrally.
    Basically it was a perfect fit with a 6mm shim and 10mm offset countershaft sprocket..


    Sent from my D6503 using Tapatalk
    Geeto67 likes this.
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

    www.flickr.com/photos/knumbnutz ....look in the albums

  9. #8
    Member knumbnutz's Avatar
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    So, I think I am up to the last pic.
    Why cut off the back of the frame?
    Well the back of the frame has a big loop which looks completely out of place. The trellis frame is full of hard angles so the loop just doesn't go with the rest.
    At this stage I bought a basically new 1098 ducati subframe for $60 so I just have to match them together.
    I cut off the trx subframe and then used some of the tubing to weld back in place and complete the trellis.

    Sent from my D6503 using Tapatalk
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

    www.flickr.com/photos/knumbnutz ....look in the albums

  10. #9
    Member knumbnutz's Avatar
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    It will look like neither of those two bikes you posted Geeto67


    Sent from my D6503 using Tapatalk
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

    www.flickr.com/photos/knumbnutz ....look in the albums

  11. #10
    Member knumbnutz's Avatar
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    Just a quick photoshop mockup I have for it..
    "all black though!!"



    with these pipes ..
    "If you give up drinking and smoking you don't actually live longer, it just seems longer"

    www.flickr.com/photos/knumbnutz ....look in the albums

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