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Custom Aluminum GT SS Frame build-up

12K views 47 replies 15 participants last post by  Gonzo Mason  
#1 · (Edited)
Custom BUDGET SS Aluminum GT Frame build-up

So I had this frame left over from my last build and I've been itching to build an SS for a while, so here is my documented build. I'm really trying to do this on a budget this time, and like I did last time I will be sure to post the prices and sources of my build up.

Here's what I'm starting with:

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-Unknown 90's GT Aluminum frame - nice and scratched up from previous owner's paint removal (makes it look tough)
- GT Stem (got off ebay long time ago for like $5 just to have, and now it's gonna get some use)
-Some crappy Wheels, Suspension Fork, and Handle bars from a 2001 Pacific bike of some sort. All of these components are really heavy, but I'm thinking cheap here.
-WTB NANO Raptor tires ($20.99 shipped for the set off ebay - got them for another project but may use these for the SS)
- *not shown* old seatpost, seatpost clamp, nuts and bolts
 
#2 · (Edited)
Untouched Frame Pics

I originally won this frame off of ebay, but upon inspection after I received it I realized it was not the same frame as in the auction. After I told the seller, he shipped me the correct frame and told me to keep this one. It came pretty scratched up from the paint removal...looks like they used a wire brush on it. So here's how it came:

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Time to clean her up a bit...
 
#3 ·
Frame after a bit of work

I really like the look of aluminum, so I've decided to keep it that way...but I couldn't leave it quite as beat up as I received it. So I sanded it with some 1000 grit, 0000 steel wool, and two different 3M Scotchbrite pads. I didn't go crazy on the clean up because I want this to be a bike I can kind of beat up without having to worry bunches about it. I def didn't want to polish it up with all of the deep scratches, but I think it cleaned up pretty well for the condition it came in.

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Def still a lot of "character marks" but I think she looks ok
 
#4 ·
Fork clean up

This fork is almost not worth the effort to paint ( it weighs like 5lbs and has no adjustability - just like I like em) but I needed to go black to match my bars and stem. Here's my ghetto paint job:

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I removed the stickers, used some goof off and steel wool to remove the glue and other sh-tuff. Those brake studs would have broken off if I tried any harder to remove them and the rubber boots are coming off (i think) so I just left those on to protect the sanctions.

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Just sprayed it with some left over semi-flat Krylon Rust Tough Enamel - it's now black, a job well done :)

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With boots still on for the time being...
 
#5 ·
Now the fun stuff - EBAY and Amazon!

Many days I've struggled to decide on an accent color scheme...red, orange, blue, lime green...? I love the Red and Black/Silver bikes, but I felt like I don't need to add another to the long list of current ones. I love the orange idea, but felt like it may be hard to find orange components in the right shades. I did blue with my last build...so lime green it is. Always liked the bright green bikes so this is the direction I've decided.

Fun in the mail!

- Origin 8 urban pro saddle $25 shipped - I love the look of these seats...I have the same one, but in blue on my other GT

-I love colored pedals...so I picked up a set of Wellgo plastic pedals for $18 shipped - but already returned them. The color didn't match the seat very well, and that's the shade of green I like most...matching that green is looking to be a tough task

- used Stonglight SS 32t Crankset with bash gaurd and bottom bracket. $35 shipped...I had no idea what I was looking for but found this the day I decided to build an SS and honestly just thought it looked pretty cool (and cheap!)

- Grab On brake grips...$5 for both sets. After I decided not to go with the green grips (being a bit scarred of green overkill) I ordered these (and some green brake cable - so much for the overkill). I haven't put these on any levers yet but they look and feel awesome and old school.
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Just got these in today. Tacx JUNO Composite cages. They came with swappable rubber nubs in different colors to match your ride, which I think is pretty cool. I'm going with white 1) because they didn't come with green and 2) because I have some white in some lettering on my seat and decals (which will be revealed later)

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This is the SS conversion kit I ordered (Origin 8 PRO-PULSION Single Speed Conversion Kit) becasue it was the cheapest I could find $35 and it just happents to match my seat...I also thought it was cool it comes with two different cogs (16t and 18t)

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My appartment/workshop with the frame in the back...and a set of Semislicks I picked up locally off ebay for $17, just because they were new and cheap. (I'm addicted to ebay, but I admit it, so that's a start)

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More to come soon...waiting on new pedals, grips, brake cables, brake levers, and decals. (getting stuff in the mail is the best part of a bike build!)
 
#6 · (Edited)
Graphics/Decals

The decals came in today! I ended up ordering a set of GT Karkass bmx decals ($10 ebay). This bike is gonna be my urban warrior and I thought the style of these decals kinda fit the bill. Of course this isn't gonna be a GT Karkass it's a GT SS, so they had to be modified a bit.

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...and after all the hacking - GT BIKES, SS, R SPEC (for the fork)

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Frame application - just wiped the frame down with some rubbing alcholol. The decals are actually stickers, so application was pretty straight forward. I could peel them off and reposition, but only once or twice max.

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The GT in the front was looking lonely and small so I messed around with some different borders - don't know if I like any of them...but I'll sit on it for now
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Fork decals

The fork was looking pretty plain, so I took some leftover decals from my set to dress it up a bit.
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#7 · (Edited)
Brake levers and grips

Brake levers came in today - Avid FR-5 $13

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I cut one grip in half to fit the brakes better (so I still have 3 (6) more for when they get beat up) I was really starting to question the green accent color choice for the bike, but once I got these on I started to feel better.
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just mocked up a bit
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#14 ·
Thanks Marpilli! You were a main inspiration for this build...I was so close to red/black, because yours turned out so well! Did you get the new bars/stem/fork on yet? When you do, make sure you post those pics on your thread.
 
#15 ·
Hi...I've done Alu polishing on frames before and was wondering how you plan to "cure" or treat your frame to protect it from acid sweat and road grime , dirt etc as these will destroy your clean up work in very short time !!!!!

Thanks....Great project going on....Lovely retro GT ZASKAR
 
#16 ·
Hi...I've done Alu polishing on frames before and was wondering how you plan to "cure" or treat your frame to protect it from acid sweat and road grime , dirt etc as these will destroy your clean up work in very short time !!!!!
I have limited experience with frame polishing; however, my frame has not experienced the degradation you describe.

I used finer grades of sandpaper and steel wool to prep the frame. Then I used the mother's aluminum polish to polish the frame (twice over). Finalizing with a single application of some car wax I had on the shelf. It's been 4-5 months now and it looks as good as it did originally. Well, it's dirty. But, it's a mountain bike, right? ;)

I've seen some other examples of raw and polished aluminum where the owner's used no ongoing maintenance and the frames still looked great.

Can you describe (or post a photo) of the problems you've experienced?
 
#17 ·
This frame looks like a GT Tempest, which I have the AnaTomica version, but looks very similar, shape, dropouts, triangles, cable routing, etc... Maybe try to get the SN number under the BB.

Nice decals choice too. I really like the green accents and the fork paint job.

I'm currently building my Tempest and I think I will get a lot of inspiration from this SS. I'm using a internal 7 speed hub instead of SS (lot of hills here)...

Keep on good work man.

David
 
#18 ·
With regards to protecting the frame...I might put some wax on it...but Im kind of a wierdo and I'll probably ending wiping it down after rides, which I think would take care of any corrosion worries



Thanks so much David! I just ordered another set of decals for back-ups because you never know if you'll be able to find them again (hint order extras)

I can honestly say I know next nothing about internal hubs with gearing...but I'm going to have to do a bit more research on it now. I think I saw a guy mate an internal geared hub with a carbon belt system, and it looked awesome.

I have two similar frames - this one with the support section on the top tube at the headtube and the other with the tube support at the bottom. I think I might actually prefer it at the top like this one...maybe because I dont see it as much (or because it's my current build :D). I think I remember seeing a Pantera with the support section at the top like this frame.(I just took a look at your frame and that tube support is at the bottom, looks like my other frame....so I wonder?)

More updates soon :thumbsup:
 
#19 ·
I can tell you one thing about internal geared hubs... They weight a ton and are expensive unless you get a good deal (I got mine used for free from a friend) and I need to build it back on a 26" rim, because it's on a 24" right now, but I might keep it as is for now, because wheel building is not in my budget for now ($100 and more).

But they are great and come very often with drum brake, which mean no derailleur and rear brake troubles and adjustments (peace of mind and tool-free). You might only have to figure out on how to route the cables, since the frame isn't design for this type of setup.

You must powder-coat the frame with a clear to ensure good durability and nice look and then wax it up, if not, the job will not last.

I'm looking for a front drum brake hub too, to get a fully reliable bike and no worries.

This damn thing is costing me more money every time I open up this forum :D

Happy building my friend,

David


Sent from my iPhone while bikin'
 
#20 ·
New Stuff!

Got some new parts:

Fyxation Pedals ($23), Rav X Density X Lock grips ($11), D Hanger ($8.50)
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New pedals on the right compared to the old ones (left)...much better :)
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Now closer to the seat. Not perfect, but closer...
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#21 ·
Fun with Graphics...?

So, I was a little bored last night and looking at a lot of new bikes on the inter-webs and decided my frame needed a little bit more stuff lol...I may have gone a little overboard.

My workstation - I had some spare vinyl from my previous bike build so I started messing around.
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at first...
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and then
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ehhh - **** it
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The green looks faded in these pics for some reason, but it is spot on matching with the seat IRL.
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I think I might have liked it with just the black...but I'll wait and see how it looks when it's all together. The vinyl is easy to get off if I dont like it.
 
#23 · (Edited)
haha - I'm not exactly prepared for anything, I used some old credit cards and a 2x4 for straight lines...I used a flat razor from a paint scrapper to cut it out. I would kill for a vinyl die cutter...then I could actually do intricate designs, but as it is with the tools I have, I have to keep it simple and get a little creative.
 
#24 ·
Wow, great results using what you had. How did you get the rounded corners?

My wife has some scrapbooking stuff and she has a 'corner cutter thingy' that can round out 90deg cuts. I might give it a try using some of her supplies. ;)
 
#25 ·
For the corners, I traced a credit card corner on the back of the vinyl and cut them out with the razor blade by hand (a few I just did blind)...they are far from perfect, but don't look terrible from a couple feet away ;)

A 'corner cutter thingy'? I need one of those!
 
#31 · (Edited)
Ok I changed things up a bit, but she's done, she's fast and light and here are some pics:

Changes:

Mavic Rims with HuGi 240 hubs
RaceFace Cadence seatpost
Origin 8 seatpost clamp
ControlTech bars
eXotic bar ends
eXotic aluminum forks
Tranz X locking allen key skewers
FSA Orbit X headset
Carbon-Fiber crank arms

*nothing quick release because it's my urban bike*