Fully parametric (untested, it works for the parameters as they are set)

The provided STL are fine for a handlebar where the stem clamp measures 46mm, the diameter of the handlebar is 25mm just next to the stem clamp and 22.5mm of diameter some 15mm far away from the clamp.

In response to Cadical's design challenge:

emakershop.com/forum?vasthtmlaction=viewtopic&t=251

Sorry, couldn't help myself :)

The bicycle of my son...

Has: removable mudguards.
Has (had) not: a way to mount lights on it.

This...

Is: supposed to be screwed on top of the rear mud guard.
Is not: parametric :(

Shim for putting a 27.2 mm bicycle seat tube on a frame with a 31.6 mm seat stay.

A rugged az-el mount that converts a telescoping inspection mirror into a bicycle helmet mirror.

This is used to remove the bearing holders for the circa 90's Avid Arch Supreme linear pull brakes. I think at the time you could just buy full replacements (along with the tool), but now both are impossible to find. With this tool the brake arms can be completely disassembled and the bearings can be more easily removed and replaced.

This is for a fairly obscure bicycle bottom bracket I came across. The one I had was a mix between the old style adjustable cups and newer cartridge type. Because it still uses lockrings, the tool itself doesn't need to take much force, I only needed it because the threads were in poor shape.

This thing is a quick release bicycle headlight using magnets.

Checkout these video for a demo ...
youtu.be/8rBtbKnmoKw
youtu.be/pFVRycwWcl8

PROBLEM! Your totally sweet bike does not currently emit enough light to allow you to ride in the dark without endangering yourself and/or your aformentioned totally sweet ride. What to do?

Well, there are a number of options open to you: you could hoard radium and staple it to your pedals, but that might cause things to glow in situations where it's not appropriate (for instance, secret missions). Glow sticks can be tough to find in a pinch, and taste horrible. Purpose-built bicycle headlamps can cost an arm and a leg and aren't really useful outside of bicycle-bound illumination.

In an effort to redress all of this, I've created an adapter that allows you to attach a small flashlight to the handlebars of your very own bicycle. Get a good standalone flashlight, and attach it to your bike only when you need a light! I use a 4sevens Quark Mini 123, but practically any small flashlight should fit.

This thing prints just fine without support, even if the geometry looks a little weird.

My bike was manufactured with all the usual mounting holes on it everywhere except they somehow forgot to put on the bits that attach a mudguard. Just as well it was almost half price or I'd be really angry. Its on now so no more wet bum for me.

Mine fell out this is my replacement. Can be resized to fit any size of handle bar.

Go Retro.

This model was built for Garmin 405 watch. It's useful for bicycle riders who use this watch.

It matches for bicycle handlebar with 32 mm diameter
(proberly matches for most of the racing bicycle).

**If the images are'nt working, you can look at it here:
imageshack.us/photo/my-images/197/35122072.jpg/
imageshack.us/photo/my-images/692/63880293.jpg/

Are you sometimes two tired in the morning to bike to work because you don't have a place to put your coffee? Now you can put the pedal to the metal with this luxurious bicycle cup holder. "I'll have that organic, fair-traded, grass-fed, low-fat iced latte to go please!"

the object is a two pieces cellphone holder for bikes. the diameter of the central hole is a 32mm and the two pieces are attached together with 4 M3 screws.
to avoid vibrations and shocks I've attached small rubber pad (1mm thick) where the cellphone touches the holder

This is a tub cap that fits on top of a Cannondale lefty fork. I lost the original that came with the bikes. I made 2 versions: one has a longer throat portion and it a bit tighter (it also has a circle on the top... something to look at while on the bike for hours). The other is plain.

This mount is resized to fit the Droid X and Droid X2. Its a close fit but seems to hold the phone well.

I printed with PLA but only because my supply of ABS not yet come in. "Evo bar mount.stl" is just a re-upload from the EVO multifunctional mount design. No changes were made but I included them here for easier access.

This is a mustache I made for my bicycle handlebars. I originally made it much thicker but it kept breaking. Now it's been on my bike for two months without breaking. I've included the scad and dxf files I used should someone want to play with it.

This is a bike pedal adapter that provides a platform to make it easier to ride with street shoes. See link below for an example of a commercial version. This platform adapter was designed for Shimano MTB sport pedals but will probably work with other mountain or road bike pedals.

I tested them out on a short ride and this quick design worked surprisingly well using PLA plastic.

nashbar.com/bikes/Product_10053_10052_506911_-1_200545__202363

Needed a sprocket to direct-drive a bicycle chain from a stepper motor. First try, the fit is a bit rough - we'll see. Will add more details/fixes if/when it's together and working.

Second version looks like it'll work well.

I recently posted a valve cap for Presta valves ( thingiverse.com/thing:10570 ), but at least in the US Schrader valves are much more common. So I made a Schrader version. Replace your constantly lost valve caps!

If you don't know whether you have Schrader or Presta, if you're in the US you probably have Schrader, and if you're in Europe you probably have Presta.

I'm always losing the damn caps for my inner tube valves, and you can't get new caps without buying a new inner tube. This print keeps me from having to steal caps from my spare tires.

Note: For those of you trying to make this work on Schrader valves, I just posted thingiverse.com/thing:10700

If you don't know whether you have Schrader or Presta, if you're in the US you probably have Schrader, and if you're in Europe you probably have Presta.

a mount for a 4g ipod for a bicycle. i made it because there was only one mount i could find and it was to big to print on a thing-o-matic which would leave some people out, so i made this one. if there is something wrong with the dementions please notify me. thank you i hope you enjoy it..........you can change it to fit your different generation of ipod or change it to fit one with a case

This seat is intended to lower the seat height of a toddler push bike by about an inch. The top of the seat should be just above the seat post mount on the frame. The seat's internal frame will then press against the seat post mount for additional support. A short seat post will print as part of the seat.

My son is a bit too short for his push bike. I am hoping this will allow him to fit the bike sooner.

Someone needed a mount for a Bell light, so I threw this together. The seatpost clamp design was borrowed from the typical reflector mount and could also be used for other stuff... like reflectors. The light mount can also be generated from the scad file with a tab to make it removable with those wedge tension clip things.

I have a rack on my bike, and a light from Planet Bike. The mounting hardware for the light allows it to mount on the seat post, but then it will be covered by anything on the rack. It can be mounted on one of the support struts for the rack, but then it is quite low, and often gets knocked out of alignment.

The ideal place to mount is on the rack itself, which has a fitting for a mini license plate.

This object is an adapter for the bike light, that bolts onto the license plate fitting, and still has a functioning quick release for the light.

The OpenSCAD file is broken out into modules, so if you have a Planet Bike light set, you can re-use the mounting bracket and release lever and make your own custom light mountings!

My first attempt at making an open source tire lever! Super handy for changing popped tubes on a bicycle! Print two, then use the first to pry off the tire, then clip it to the spoke, then use the other to remove the rest of the tire.

I have no bot - can somebody try printing this and seeing if it works? This is my first Thing and I'd appreciate any feedback - just trying to get more involved with the Thing community.

Trying to clone: bloombikeshop.com/productreviews/pedros-tire-levers.php

This part was made with Tinkercad. Edit the part online at: tinkercad.com/p/acc012b37bbeeec0

This is an attempt to create an internally geared bicycle hub, based on the Sturmey Archer A-3 design from 1914. Because the schematics are so old, I am 99.9% sure that copyright has expired and that they are now public domain. It is very alpha quality. I have no way to test making it so I don't know if the files work. I also haven't drawn all the parts; I've run out of time so here is an upload of what I have so far. Theoretically the gears should at least mesh and spin, if you put the axle, the planetary gears and the ring gears together.

Why create it then? To test certain questions:
1. Can you make complicated stuff in openscad?
2. Are there interesting old designs that are not only patent-expired, but copyright expired? (early 20th century stuff)?
3. Can plastic prototype hubs help the understanding & design of a real metal hub?
4. Can public domain parts files help with re-use?

This project uses a modified form of the following public domain project:

Parametric Involute Spur Gear by Leemon Baird, 2011,
thingiverse.com/thing:5505

Old Sturmey Archer hub design schematics can be found here:
sturmey-archerheritage.com/index.php?page=history&type=technic&era=1

Cornell University has a great guide to Copyright and the Public Domain, discussing the expiration dates for copyright. It is here:
copyright.cornell.edu/resources/publicdomain.cfm

I wanted to install a new bottom bracket on my messenger bike project, but it needed a special wrench. Rather than spend more on the wrench, than the rest of the bike, I made my own.

This is an adapter you can use to inflate your old style bicycle valve using a compressor at a gas station. Use it at your own risk. Mine is not completely air tight at the outside (the side where you attach the compressor), but this is not a disadvantage as it prevents pumping too much air in.