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Thread: Building a bike from parts bikes, lots of questions.

  1. #1
    Senior Member 2DIE's Avatar
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    Default Building a bike from parts bikes, lots of questions.

    Hey guys, I picked up some free bikes and bits a lady was giving away.

    Originally I thought I'd get the Giant running and decide if I'd keep it or not and sell the other frames but when I saw the frame where the seat pole goes in was squished to fit a skinny pole.

    I'll also add a pic of my GT Avelance which I might swap some parts around on as well.

    My goal is to have 1 practical bike and 1 thrash bike but at the moment my dilema is if I should leave my good GT with the 17 driveline or change it back to 3x7 and and make the other bike a 1x8 or 1x9.

    I'll probably build up the GT Ricochet as the thrash bike, keep the forks that are on it, use the stem and handlebars from my Avalanche, put the Giant stem on the Avelance and get new bars for it (or I might see if I'm able to clean the Giant ones up).

    At minimum I need a seat, seat pole, grips, maybe a chain, cassette/freewheel and some brake pads. I wish I didn't throw all my old parts out but I have some new brake and gear cables.

    Just throwing ideas around for now but any input of other ideas or if you think it might be better to build one of the other bikes for some reason.

    Any ideas or help appreciated.



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  2. #2
    stink noodle
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    Any signs of stress where the seat tube starts to compress on that giant? From the photo it looks like a deliberate taper as the paint is pretty good and the angles seem fairly consistent.

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    Senior Member 2DIE's Avatar
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    Quote Originally Posted by pink poodle View Post
    Any signs of stress where the seat tube starts to compress on that giant? From the photo it looks like a deliberate taper as the paint is pretty good and the angles seem fairly consistent.
    Not that I noticed but I haven't had a good look, although the seat pole in there looks like a bmx pole and it's got about half a cm of PVC tape all round it.

    I'll have a look later and take some pics.

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    Senior Member silentbutdeadly's Avatar
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    Giant Cypress is a hybrid frame not an MTB frame. It's a good frame but not the geometry for an MTB. Forks aren't original either as axle to crown looks way too short. And they came with SR Suntour forks too from memory.

    That green GT frame is quite nice

  5. #5
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    Its a fun way to learn about bikes,parts etc if you arent in any hurry.
    Patience is required as parts can take time to appear.
    Most of my bikes were built this way although I actually paid for the frames .
    scarey but cool

  6. #6
    Senior Member 2DIE's Avatar
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    @pink poodle

    I got some pics, it's been squeezed more than it should have but you could probably fit the proper size seat pole back in it with a little effort. Not too much stress apart from what looks like some cracked paint.

    @silentbutdeadly
    No idea about the forks but they have been spray painted gold with a bad rattle can job (it's the same blue as the frame under then gold) and then a rock shox sticker has been put on it. I rally like the green GT frame too even though it's got lots of scratches and chips but no structural damage at all.

    @rowdyflat
    I've built dozens if bmxs growing up but I've only been playing with mountain bikes for about a year, I prefer bmxs but being 6'6 and about 100kg+ I'm way too big for them now. I might keep a eye out for free and cheap parts, maybe I'll build a few bikes up.


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    Senior Member 2DIE's Avatar
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    Forgot pics of the Giant seat post clamp part.

    Also the pole that was in there with tape around it that didn't fit, fits perfectly in the GT frame without the tape.



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  8. #8
    Senior Member The Duckmeister's Avatar
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    Quote Originally Posted by pink poodle View Post
    Any signs of stress where the seat tube starts to compress on that giant? From the photo it looks like a deliberate taper as the paint is pretty good and the angles seem fairly consistent.
    Quote Originally Posted by silentbutdeadly View Post
    Giant Cypress is a hybrid frame not an MTB frame. It's a good frame but not the geometry for an MTB. Forks aren't original either as axle to crown looks way too short. And they came with SR Suntour forks too from memory.
    That's not a factory taper on the Giant!! If it was properly done it'd taper lower & straighten before the slot. Might be OK if very carefully straightened out, but as SBD says, it's not a MTB frame anyway, it's a hybrid, although a 100mm up from the original 63mm fork might slacken it enough to be passable for light XC use, but you might have a bit of trouble weighting the front wheel enough for traction.
    Just ride the bloody thing and enjoy yourself!

    I build wheels... :wink:

  9. #9
    Senior Member 2DIE's Avatar
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    Can anyone help me with seat pole and clamp sizes?

    The first 2 pics are from the Giant which I need a new seat pole for, the hole is squished a little so the measurements might not be exact but I think I can fit the right size pole back in there with little effort.

    The 3rd pic and after are thr green GT which needs a seat post clamp, I took the clamp off my other GT that fits for measurements too.

    I don't know how they measure seat pole clamps but I'd assume the measurement of the sea tool would just be the diameter?

    Hopefully placing a order for a few parts tonight if anyone can help before then.


    Giant:





    GT






    Last edited by 2DIE; 01-06-2017 at 08:07 PM.

  10. #10
    Senior Member 2DIE's Avatar
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    Edited the above post, I forgot to add the pics.

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