Deconstructing the bicycle
- squeakywheel
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Deconstructing the bicycle
Postby squeakywheel » Fri Apr 22, 2011 4:46 pm
Ive begun stripping all the bits and pieces of my single speed candidate prior to sandblasting and powdercoating. There's a few bits that I'm not sure what to do with.
The first one is where the down tube shifters were. I've taken the shifters off but am left with the two bosses with an axle-ey thing sticking out (see below). Is the axle-ey thing meant to come out or is it there to stay?
Any tips on what to do with the shifter bosses once its converted to SS? Put the shifters back on maybe? I've seen some covers on eBay but with postage and all they end up being pretty pricey:
http://cgi.ebay.com.au/Problem-Solvers- ... 3cb4dad176
Also there is ring thingy on the fork - does this come off?
and another on the head tube.
Is there a nice safe way of getting them off without damaging them? I dont want to try and force these things off if they're not meant to come off!
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Re: Deconstructing the bicycle
Postby wookie661 » Fri Apr 22, 2011 5:57 pm
- ghettro
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Re: Deconstructing the bicycle
Postby ghettro » Fri Apr 22, 2011 8:20 pm
The last shot shows the upper bearing cup, i'm assuming you haven't removed the bottom cup either, these two cups hold the ball bearings for the headset and can be removed by using a punch to tap the inside lip inside the head tube. Alternate from either side of the cup so it doesn't come out !! BAN ME NOW FOR SWEARING !! eyed.
- squeakywheel
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Re: Deconstructing the bicycle
Postby squeakywheel » Sat Apr 23, 2011 10:07 am
Thank you!ghettro wrote:You can remove the silver bits on the shifter bosses, use a screwdriver or similar to pry them off. There is the option of grinding them off, but I probably wouldn't if it was my bike, just if you ever want to put on gears. The ring around the fork steerer is the crown race, this is what the bearings run on , so it's very important to keep hold of it because it is part of the headset - it's an interference fit so you can easily just lightly tap it off with the fork upside down and the steerer on the ground. Be careful not to damage the bearing surface.
The last shot shows the upper bearing cup, i'm assuming you haven't removed the bottom cup either, these two cups hold the ball bearings for the headset and can be removed by using a punch to tap the inside lip inside the head tube. Alternate from either side of the cup so it doesn't come out courier eyed.
Ive gotten off the crown race and the bearing cups, but till havent figured out how to remove the shifter axle thing. Tempted to bash it with a hammer...
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Re: Deconstructing the bicycle
Postby PeteV » Sat Apr 23, 2011 3:39 pm
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Re: Deconstructing the bicycle
Postby ghettro » Sat Apr 23, 2011 4:59 pm
- munga
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Re: Deconstructing the bicycle
Postby munga » Sat Apr 23, 2011 10:46 pm
- squeakywheel
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Re: Deconstructing the bicycle
Postby squeakywheel » Mon Apr 25, 2011 11:15 am
munga wrote:dude, the axle thingys are called bosses. they are little keyed threaded bits of steel carefully 'welded' to each side of your downtube. theres no axle concept in play. bash it and you'll dent your downtube and be on ebay looking for another frame.
Dudette actually
Sorry I'm not very up with the terminology - I thought the bosses were the circular parts that attached to the frame and the "axle-ey thing" was something else altogether (and removable).
I'll let the hammer stay in the shed then and find another alternative.
Thanks for the advice
- ghettro
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Re: Deconstructing the bicycle
Postby ghettro » Mon Apr 25, 2011 2:04 pm
This is what the boss looks like when you have removed it:
- squeakywheel
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Re: Deconstructing the bicycle
Postby squeakywheel » Mon Apr 25, 2011 3:45 pm
Thank you! The pics help a lotghettro wrote:The bit you can remove is the silver bit, the base of the downtube shifter sits on top of this and uses it as a stop. see below for what they look like removed
This is what the boss looks like when you have removed it:
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Re: Deconstructing the bicycle
Postby yehuwdiy » Thu Apr 28, 2011 6:15 pm
What brand/model of frame is it? Regardless, I tend to only make changes to my single speeds that are reversible; it kills me to see nice frames with all of their 'ugly' braze-ons ground off.
Hope your having fun with the build!
- squeakywheel
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Re: Deconstructing the bicycle
Postby squeakywheel » Thu Apr 28, 2011 7:21 pm
That's some good ideas. At the risk of sounding like a right poseur, I'd like to attach a coffee cup holder somewhere.yehuwdiy wrote:Actually, the shifter bosses are great for attaching things to. I've seen bottle openers, key hooks, lights, water bottle holders, mobile phone holders...all sorts of things!
What brand/model of frame is it? Regardless, I tend to only make changes to my single speeds that are reversible; it kills me to see nice frames with all of their 'ugly' braze-ons ground off.
Hope your having fun with the build!
The frame I am using is an old malvern star kinetic, and I agree, I'd prefer not to do anything that cant be undone. I'll be masking those bosses prior to powdercoating so hopefully the shifters will fit back on ok if need be.
The frame itself is a little big for me but I figure it wont matter as I wont be travelling any great distances.
I'm curious about the bike in the pictures ghettro posted. Is the work on the bike complete? May we see it?
- metalrideroz
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Re: Deconstructing the bicycle
Postby metalrideroz » Fri Apr 29, 2011 7:57 pm
If you can stand over it comfortably then no problems but if "a little big" means your having trouble standing flat footed over the top tube then you might need to reconsider.nikkie wrote: The frame itself is a little big for me but I figure it wont matter as I wont be travelling any great distances.
- elStado
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Re: Deconstructing the bicycle
Postby elStado » Sun May 08, 2011 6:03 pm
viewtopic.php?f=34&t=34846
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