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Secure the front fork by drilling holes through the headtube and sticking bolts through so the steerer doesn't move.
Cold set the rear bike's front forks by spreading them out so they fit over the front bike's rear forks/dropouts, then put the "middle" wheel in and use the rear wheel axle to hold the whole thing together.
Run a drive-side timing chain from the front bike to rear bike's crankset. The front derailleur is removed, of course, as are both derailleur's from the captain's bike.
The drive chain is run from the rear bike's other chainring to the rear bike's rear derailleur.
By Yokota Fritz
Bay Area cyclist Alison Chaiken doesn't like backpack hydration systems. The plastic bladder is easy to puncture, difficult to clean and expensive to replace. The backpack is annoying to cyclists. Alison came up with this homebrew bite valve hydration system that uses PET soda bottles and other readily available parts.
Gents, Alison is single. She's a physicist who likes working with large powered tools and she reads Cyclelicious. My heart swoons.
By Yokota Fritz
I think many cyclists are familiar with Rainlegs, which are lightweight water and wind resistant panels that cover the thighs to keep your pants dry in the rain. For cyclists, they're perfect adjuncts to fenders.
"khyungyokpo" in Seattle gives his step-by-step instructions for Ghetto-style rainlegs made from a $16 pair of rubberized rainpants in this Flickr photoset.
Props to Bike Hugger, who has some extra notes and tips from the ghetto rainlegs designer himself.
By Yokota Fritz
Instructables has an article about a DIY project to build your own "Xtracycle" type bike with an extended wheelbase for more cargo-carrying capacity. Though you need to sacrifice one full-suspension mountain bike frame and drill a couple of holes, no welding is required and the project seems fairly simple if you have the right parts. It involves connecting parts of a "donor" frame into the rear triangle of your bike to create your extended wheelbase bike. The main part of the bike can easily revert to its original identity, too. An actual platform to make use of the extra room is To Be Done in a future episode.
By Yokota Fritz
"This page describes the construction of a bike light comprising three 3W Luxeon LEDs. This project had three main goals. 1.) Make a light suitable for use in 24-hour mountain bike racing. 2.) Use readily available material as much as possible. 3.) Offer the details to the community and invite any and all comments."
By Yokota FritzThe problem: the little plastic tabs holding the helmet visor in place broke! When I rode, the visor always flipped up and back. Tape is sloppy. Glue can affect the integrity of the helmet by dissolving the plastic and foam. Simply ripping the visor off is workable, but the helmet looks even dumber than before.
The solution: Hook and loop fasteners! These happen to be Velcro brand, but any hook-and-loop fasteners with adhesive backing should work. I bought this package from Home Depot, but I'm sure any hardware/home improvement store will carry this stuff.
Cut to size and attach hook and loop fasteners -- stick one piece on the helmet, and attach the other piece to the visor, ensuring the two pieces line up.
All happy! Your visor will now stay in place. My job is a little sloppy; I'm sure you can do better.
Recycle leftover conference bags into useful cycling rain gear
Anybody who attends conferences usually has goody bags to bring home. Amanda usually donates her bags to Goodwill, but the bag from her latest trip was made of vinyl, "just right for raincovers for cycling."
"I drew the pattern based on my favorite winter shoes, but they will fit over my Keen sandals too. Those spandex type covers sold to cyclists may look slick, but when you take them off all muddy and wet they wad into a stiff ball."
"I did make the bottom pieces bigger by sewing together scraps. Then I took apart the bag to salvage the vinyl piping to use to stiffen the top of shoe covers. I had velcro salvaged from another clothing item to sew on the ends so they would close over my heels. Both piping and vinyl were easy to sew on my machine.
"It only took me 3 hours to sew them up which gives me about $7.50 an hour given the price of the cheapest rain booties I could have ordered from Campmor, but no one else was paying me for my time yesterday and I didn't have to wait for them to be shipped.
"They have a clunky charm and the asymetrical color combo is stylish. The gap between pants and raincovers won't matter too much because the flair of the pant cuffs seems to keep the rain off. And this way there will be some ventilation. Poor ventilation is the biggest complaint about rain booties. For traction I may run a line of Shoe Goo across the bottoms."
Photos and narrative seen at Earthworm's Flickr photostream and used with her kind permission.
Greetings to Makezine visitors. Other Cyclelicious DIY:
Fend For Yourself provides instructions on do it yourself bike fenders made from campaign signs. Like Sue J reminds us, though, wait until after the election before pilfering recycling Coroplast signs into bicycle fenders.
Bike Search Engine: I've gotten all fancy using Google's AJAX programming API for their search engine. Check it out -- now, you also get bicycling-related search results from blogs, from the news, and from the website at large as well as from the narrower focus provided by the Cyclelicious Custom Search Engine. Try searching for articles on fenders -- not "bike fenders" but just "fenders" -- and see what you find. It's kind of fun, I've already found some new and interesting sites using this powerful tool.
By Yokota Fritz
Noah Koerper gives detailed instructions to build a ski bike in Dirt Rag magazine. This is by far one of the simplest designs for a DIY ski bicycle that I've seen.
The ski bike is not even remotely safe to build, ride, or even stand next to. Many early versions of the ski bike failed miserably, and just because this one�s stayed intact so far, doesn�t mean that yours is going to. So make sure all of your bolts are tight and your life insurance is up to date.
DIY no weld tandem bicycle
Could be the angle but that photo looks Photoshop'd: th lighting on the bike white wall tire is the most glarring sign, also the lighting of the blue (bright and clear) on the front bike and the yellow (dull) on the rear bike don't match. Oh well, perhaps I've been hanging out in the grassy knoll too much but thats what years of working at Adobe will get you.
Did you read the link? Its not faked.
One problem I see with this, what happens on a big speed bump? Or a huge dip? Or even normal uneven pavement to a lesser extent. The two frames will rotate against each other pivoting at the middle axle. Maybe some type of bushing or bearing setup would make this better.
DIY bite valve hydration system for cyclists
*How* easy to puncture? Not much easier than the bottle, and even I don't stick sharp things down my camelbak... and who needs to clean it if you a: just use water (which comes wtih chlorine) and b: ride enough to fill it daily? Annoying, aschmoying ;) That sideways bottle... I know I'd find a way to get the top on wrong and be dribbling a trail behind me...
(but she's got great taste in blogs!)
i find that putting water in a bottle that i put in a water bottle cage works pretty well too. i love it when people create problems to solve. does look like fun though.
neat idea, but seems like too much effort -- you could simply stick a sports bottle like this in a handlebar bottle cage. done!
...plastic bottles are so 2007...i'm going w/ sigg aluminum which is coated inside for no leaching...can't squeeze 'em but w/ the right top, hey, water tastes like water...how unique...
Some of us are challenged by reaching while riding, even after just a few miles under our butts. I really like my camelbak. Besides, it has these white outlines of sweat that water bottles don't get and it holds more. Oh, and my biking buddies can walk into convenience stores and announce "I need to fill my bladder!"This post has been removed by the author.
She has an interesting web page, of course I can't understand half of it...
Actually I typically use my bite-valve system with two 24-ounce water bottles that I put into regular frame-mounted bottle cages. I just haven't quite gotten around to photographing that setup yet. Too busy riding!
I agree that if you only use water in your hydration system that cleanliness is less of an issue. However if you put sports drinks in your bottles, being able to simply recycle dirty bottles is convenient.
I like Jim G's idea of using a sports bottle. You could attach a bite valve and tygon hose to the tube with a hose clamp and end up with a similar interface to the one I have. The advantage of my setup is two-fold: a) my bottle doesn't leak, even when inverted, which is key for transporting containers of sports drink in the car to ride meetups; b) the anti-siphon valve I use means that the rider only has to fill the tygon hose once for each bottle, which is a big advantage when you're out of breath!
I'll have a display at Maker Faire in San Mateo, so if you're around, come by and say hi. O'Reilly promises that all of us bicycle hackers will be together.
DIY bicycle cap
What's the matter with Hefty bags and duct tape?
This photoset seems to be gone. Does anyone know where I could find it?
DIY frame building jig
I spotted a homebrew Xtracycle-style bike in Minneapolis a few days ago. It appears to have started with a donor frame and the entire rear structure is carefully welded from tubular steel. It uses a gear hub and disc brakes, and there is even a bottle opener mounted to the back.
click to see the photos on flickr
DIY superbright bicycle headlight
Broken bicycle helmet visor repair
I've done this in the past. The only problem is in really cold weather (-20c or so) the glue freezes and it all comes apart. Shouldn't be a problem down your way.
DIY shoe covers
those and an empty coffee cup could earn me some spare change on the corner
my brother has designed and made some similar covers
this winter maybe I will make some shoe covers our of rubber shoe covers just cut out the bottom for the cleats
been meaning to do this for years
HOW TO: Campaign signs to bike fenders
Why wait until election is over to rip off the signs? In Tulsa, posting signs of any sort on the public right-of-way is serious criminal activity, punishable by $500 fine and 90 days in the clink. If you need new fenders, just go rip them off. It's called community service picking up the litter. That was the main impetus for the original BATMobile, a political campaign sign towed by a bicycle in 2002.
Yup, coroplast is the way to go and Kent's instructions are the perfect. I used them when I made my first set and every set since. Link to my flickr set.
Also, why stop with just a couple of skinny struts holding up the main fender? Pimp it! Do a whole wheel wrap-a-round.
Now I know what to do with all those signs stacking up in my yard doing community service picking up litter. I am thinking of using coroplast to make a canopy for Redneck Rickshaw. Imagine enjoying a bird's eye view of the X-mas lights from the comforts of a couch, actually a futon, on wheels, towed by a bicycle. Thanks dude.
How to build a ski bike
Maybe if you add a pair of wheels, this might actually amount to sumthing', ya think?
Handy on snow-covered hillsides in Colorado. Probably not much use in Tulsa.
Well, just try skiin' A-Basin on Memorial Day. Can you say roadrash hamburger meat?
Bicycle iPod charger