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Fenders: What's with the 'zip tie plastic 2 liter bottle' ?(9 posts)

Fenders: What's with the 'zip tie plastic 2 liter bottle' ?hrv
Nov 13, 2003 8:07 AM
Have a rear fender, no front. How do you do the above? Cut in half a 2 liter bottle, zip tie 1/2 to bottom of downtube? Use both halves?

Just do what works..Silverback
Nov 13, 2003 8:54 AM
There's no right way to do it--just cut a bottle in half (or so) lengthwise and zip it to the downtube, then slide it up or down until it blocks most of the spray. Since it doesn't turn with the wheel, you might want it a little wider than a real fender to deflect water when you turn. Might take a couple of tries to get it just right, but the parts are cheap.
Difficult to explain...I couldn't find a picture...biknben
Nov 13, 2003 9:07 AM
I did a search on-line but turned up near empty. I copied this from somewhere:
Homemade option: You can make a down-tube fender for the front by cutting a plastic 2-liter bottle in half lengthwise and mounting it with zip-ties.

Here's a drawing of what it will look like. It is extremely crude but should give you an idea. Start by cuttign a 2-L bottle in half and cut the top and most of the bottom off. Poke two sets of holes in it. Put the zip-tie through holes and around downtube.
Homemade CrudcatcherSteve Young
Nov 13, 2003 9:51 AM
I'm not sure if this adds much but the lemonade bottle thing is essentially a cheap and effective way of making a homemade version of the "Crudcatcher" - see attached link.

If you take an appropriately sized bottle - say 2 litres and cut off the top and bottom, then split it lengthwise you end up with pretty much the same shape as shown in the link. (Minus the depression where the commercial version fits onto the down tube obviously). If you then punch two or three pairs of holes in such a was that you can zip tie the half bottle to the down tube.

Once you have done that trim as appropriate to get the shape you need (you'll probably find that half a bottle introduces a bit too much curve and need to pare it back a bit.

re: Fenders: What's with the 'zip tie plastic 2 liter bottle' ?treebound
Nov 13, 2003 11:57 AM
I used several plastic half-gallon milk jugs cut diagonally in half, bottom to top, and zip-tied several of those to the down tube behind the front tire. Also stuck one on the seat post to keep crud and gunge off the front deraileur. This is on my MTB that I use in the winter with studded snow tires, they use lots of chem/salts on the roads here.

Looks funky as all get out, works fairly well. Took a little edge trimming of the jugs to get them out of the way of my pedals, feet and wheel. I'd post a pic but don't have a camera available.
Like this?wooglin
Nov 13, 2003 12:49 PM

Works ok, but not as well as fenders would. But I'm cheap so I deal with it. (Plus I can't run fenders with those rollercams.)
Perfect! Also, have same brakes on my s. speed mtb (nm)hrv
Nov 13, 2003 12:54 PM
All good replies -- esp. b-bens's drawing! Thanks all. (nm)hrv
Nov 13, 2003 12:49 PM
Front fenderEric_H
Nov 14, 2003 12:06 PM
Living in the Pacific NW (or SW because I'm in Canada), fenders are a religious experience in the winter. While making a crud guard for the downtube is easy, what you really want is a front fender with a flap. The flap extends the fender at the back, down towards the road, and keeps the water and spray off and really helps keep the feet drier. And you want another flap on the rear fender to keep the spray from getting in other riders' faces.

Most road bikes can handle fenders pretty easily, I just fendered up an older Marinoni EL/OS for the winter using the road bike fenders from It took a little creative drilling and zip-tie work, but it works. I will try to post pictures tonight.