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Singlespeed & Fixed Gear "I still feel that variable gears are only for people over forty-five. Isn't it better to triumph by the strength of your muscles than by the artifice of a derailer? We are getting soft...As for me, give me a fixed gear!"-- Henri Desgrange (31 January 1865 - 16 August 1940)

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Old 03-02-08, 03:17 PM   #1
RaeFixie
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how would you solve this problem

i am almost done with my bike all i need to do is shank a seat post up my bike's ass but i have problem

the seat tube is oval!
26.4 suppose to fit in there but it doesn't neither 26.2 and i tried 25.4 it fit!... but the problem is i have to tight down the seat tube really hard and i am afraid im gonna damage the seat tube.... what do you think i should do? should i just go with 25.4 or maybe file down the tube? SOS!
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Old 03-02-08, 03:24 PM   #2
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pics? Maybe aero seat post, hard to tell without more info.
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Old 03-02-08, 03:25 PM   #3
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Have you asked your lbs?
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Old 03-02-08, 03:26 PM   #4
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pics? Maybe aero seat post, hard to tell without more info.
no its not aero seat post lol... just plain sucky built


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Have you asked your lbs?
yes i did but i want to know what you guys would do

one guy from my lbs suggest filing down the tube and the other one suggest just go with the 25.4... so idk...

when i try the 25.4 i can see gaps but the seatpost is strong enough
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Old 03-02-08, 03:29 PM   #5
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If its a new frame, take it to where you bought it and ask, if not, maybe ask a frame builder around your area. I googled Shorline, WA and this place came up http://www.sandsmachine.com/bp_bushn.htm
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Old 03-02-08, 03:37 PM   #6
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Theres no way gaps should be there. There is also no way that SOME size of seatpost isn't made for that frame (unless its a PURELY custom frame).

Find the right part.

Here I thought I was gonna get to solve some problems. Now I gotta go put the "Where's my money wrench" away.

Sad.
:-(
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Old 03-02-08, 03:39 PM   #7
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what frame is it?
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Old 03-02-08, 04:03 PM   #8
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^
also, pictographs pls.
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Old 03-02-08, 04:07 PM   #9
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Is this a used frame?
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Old 03-02-08, 04:08 PM   #10
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is it a type of bird?
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Old 03-02-08, 04:09 PM   #11
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what frame is it?
im pretty sure he is building a sparton
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Old 03-02-08, 04:25 PM   #12
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im pretty sure he is building a sparton
Truth
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Old 03-02-08, 04:43 PM   #13
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you could use a file and/or a ream to make the bore round again, but that could be risky.
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Old 03-02-08, 07:12 PM   #14
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yes it is a sparton.. and im sorry i just went to my lbs and we solved it!!!!!

i actually tried to file it and it didnt work.... but then it just need a little touch.. i shimmed it with beer can haha and it is now PERFECTO! i am almost done with my bike... just need a saddle.. yay
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Old 03-02-08, 07:20 PM   #15
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is that a picture of you in your avatar playing bike mechanic? what are you working on?
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Old 03-02-08, 07:41 PM   #16
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is that a picture of you in your avatar playing bike mechanic? what are you working on?
lol building my front wheel.. tighting the nipples.. pretty dumb i know
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Old 03-02-08, 08:26 PM   #17
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not dumb. now lets see the rest of the bike.
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Old 03-02-08, 09:14 PM   #18
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not dumb. now lets see the rest of the bike.
its not done, ill put it on bike photos thread when its done... im ordering seatpost, saddle and grips
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Old 03-02-08, 09:16 PM   #19
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ahhh. youre killing me Rae. i wanna see!!!

Last edited by jgarcia186; 03-02-08 at 10:11 PM.
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Old 03-02-08, 09:20 PM   #20
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Remind me never to buy a Sparton.
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Old 03-02-08, 09:22 PM   #21
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Remind me never to buy a Sparton.
yes i recommed this HIGHLY too

my bike end up really nice to me, but i put lots of extra work to the frame like seatpost and fork too! but i got it when it was still cheap tho..
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Old 03-02-08, 09:37 PM   #22
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I've come across seat tubes that were pinched oval from someone using too small a seatpost in them. This is how I fixed it. take a 1 1/8" quill stemand put it in with the wedge in the collar against the narrow parts of the oval, tighten the quill stem slowly so that the wedge pushes the wall of the tube out. do it a little at a time until it's close to round. Push it out so it's a little larger than the correct size seatpost. The correct size post will slide in easily. tighten the pinch bolt, and it will conform to the seatpost, pushing everything back to perfect roundness. It worked for me on a bike with a 27.2 post that had been running 26.8 with a shim. Beleive me the correct size poes works way better than a shimmed post.
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Old 03-02-08, 09:45 PM   #23
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ahhh. your killing me Rae. i wanna see!!!
ill give u a little look... its close to be done...



i already got new pedals, its used ...i got it for 25 bucks complete with cages and straps the cover on the pedal was lost but i filed out 5 cents and shank it in and it turned out nice as you can see



im pretty happy with my first bike, although people may not
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Old 03-02-08, 10:14 PM   #24
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that looks cool. too bad Spartons ending up blowing goats. they seemed like a cool option for a second.
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Old 03-02-08, 10:30 PM   #25
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those rims ended up looking sick (i recall you buffing the s**t out of them or something) congratulations on what looks like is turning out to be a pretty nice whip
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