How do you make a bicycle rim have a transparent background, while keeping the spokes intact?

Look at the hole where the air would go into the tire., and at the rim itself. Although I never heard of a tubeless bicycles tire, except for the solid rubber tired ones, there may be some of the racing bikes or VERY expensive models that do not have tubes. If your rim has a plain hole, it should be using a tube inside the tire, same as a wheel barrow. If there is a valve stem with a core mounted in the hole, not connected to a tube, it is tubeless. Most bicycles rims also are not air tight, because of the holes in the rim for the spokes. This means there are about 30 - 40 holes beside the hole for the valve stem of the tube. Those holes have the nut of the spoke in them, and are usually covered with a wide "rubber band" to keep the tube from being punctured by the spokes.
Be blessed.

The rim should not cause any problem - but you'll need different length spokes.

Rear hubs and front hubs are different widths, have different height hub flanges, and different amounts of "dish" (offset from the center of the hub body.

If your hubs and rims are in good shape; go ahead and re-use them; but you'll need help measuring or want to use a spoke calculator online for the correct length spokes.

http://reviews.ebay.com/How-to-tighten-bicycle-spokes-and-true-the-rim?ugid=10000000002075135


use that url to help you step by step and alot more info about your issue

HOPE THIS FIXYA UP

being a french bike I don't know who can get you a replacement , but if its just a spoke or two,, wind the broken ones around so they don't rub on the fork or frame, and I'll keep looking , so check back, wow those are expensive,, heres a link
http://www.amazon.com/Mavic-Ksyrium-SL-Bicycle-Rim/dp/B0034L0872 Is it the front or rear ? heres a rebuilt one for less http://www.competitivecyclist.com/product-components/2011-mavic-ksyrium-sl3espremium-wheel-rebuild-4051.1849.1.html

More important than the bicycle model is the exact hub and rim models and specs.

At http://www.trekbikes.com/us/en/bikes/town/fitness/fx/7_1_fx#/us/en/model/details?url=us/en/bikes/town/fitness/fx/7_1_fx

I found this: "Alloy hubs; Bontrager 750 32-hole double-wall alloy rims"

which is STILL not specific enough to answer your question. Spokes come in measurements down to the millimeter and on the rear wheel the drive side differs from the non-drive side.

Measure them yourself or go online and look for a "spoke length calculator" then try to plug in the specifics of your wheels OR measure your spokes.

Or ask Trek...

http://www.trekbikes.com/faq/contact.php

Don't replace the wheel, get it fixed. The spoke can be tightened and the rim tensioned and trued. The rim strip probably needs to be looked at for exposing the spoke ends to the tube.

Google this "fix bent bicycle rim" for many answers and videos.

The actual 'fix' will depend a lot on how it got bent. Many bicycle shops can lace a new rim onto your existing hub and spokes but you may find it cheaper to buy a new wheel.

sorry you will need to buy a new tube about 4-6 dollars

Take your tire and tube off remove the rubber gasket that goes around the rim on inside. Your spokes should have a square connector at the ends tighten and loosen individual spokes on opposite sides the way your rim is bent, it takes a lot of time.Then your spokes will be sticking up into the rim grind those down so the don't poke through your gasket. Do this on the the bike frame so you can spin the rim. you can get a spoke tightener at your hardware store.This is a pain in the **** i take mine to a bike shop to have it done!

Tighten the two pinion gear bolts that are holding the rear wheel, if the wheel is wobbling, then that is the problem.

If this does not fix the problem, you will probably better buy a new wheel, or replace the whole pinion gear and axis assembly, better to replace the wheel.