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Is it a good practice to put fresh tube in the front and patched tube in the rear?

Road Cycling “It is by riding a bicycle that you learn the contours of a country best, since you have to sweat up the hills and coast down them. Thus you remember them as they actually are, while in a motor car only a high hill impresses you, and you have no such accurate remembrance of country you have driven through as you gain by riding a bicycle.” -- Ernest Hemingway

Is it a good practice to put fresh tube in the front and patched tube in the rear?

Old 05-23-17, 12:18 PM
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stockae92
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Is it a good practice to put fresh tube in the front and patched tube in the rear?

Just wondering if is it a good practice to put fresh tube in the front and patched tube in the rear?

Or it doesn't matter?
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Old 05-23-17, 12:19 PM
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doesn't matter
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Old 05-23-17, 12:19 PM
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Doesn't matter. Properly patched tube is as good as a new one.
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Old 05-23-17, 12:22 PM
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Best tire/tube should be at the front, but as said above a properly patched tube is as good as a new one IMO.
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Old 05-23-17, 12:24 PM
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The extra material in the patched tube resists the inflation pressure, decreasing the inflated size of the tire. So if you want to rotate your posture back a little, you want to make the front wheel bigger by putting the fresh tube in front. If you want to rotate your posture forward for optimal aerodynamics, you want to make the front wheel smaller by putting the fresh tube in back.

Obviously.
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Old 05-23-17, 01:58 PM
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You should replace the tube. If you are asking this question, then you aren't confident in your patch job. It's bad practice to do any kind of work that you can't believe in 100%.
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Old 05-23-17, 02:10 PM
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I don't count patches. Just use them until they don't work. Yes I have had patch failures on the road, but very few sudden ones. Most of my tubes die sudden deaths or acquire un-patchable holes. I fell better about tossing a 6 times patched tube that gets a big gash than a virgin tube.

Front or rear? I don't spend much time thinking about it. If it holds air, it goes in.

I do sometimes consider changing my tire type so I can feel more confident re: flats on high speed descents. I have had
nightmares about flatting a clincher, esp folding, and having it come off and crashing since I did this on flat ground at <25 mph. By contrast, I have flatted going far faster on tubulars and except for the big heart rate jump when it happens, it just isn't a big deal as long as you don't have to go around a corner).

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Old 05-23-17, 02:15 PM
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It shouldn't matter.

Everyone gets flats from time to time. It isn't the end of the world. A failed patch job would be more likely to create a slow leak that an astute rider should recognise before it becomes a problem.
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Old 05-23-17, 02:21 PM
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Running patched tubes in the back with new tubes up front is the leading cause of crippling accidents in cyclists who exist only is dystopic fantasies. Don't risk it.

Myself, I usually put the patch on the tube which has the hole in it. Never really tried any other system.
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Old 05-23-17, 03:33 PM
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Originally Posted by stockae92 View Post
Just wondering if is it a good practice to put fresh tube in the front and patched tube in the rear?

Or it doesn't matter?
Hell yeah! After suffering a blowout and kissing the pavement @ 22mph because of a blowout in my front tire, thus exposing the metal to the cement on a turn, and subsequent concussion and road rash. I would always put the weaker link on the rear wheel instead of the front wheel. Below is pretty much how I crashed minus the downhill and 30mph.

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Old 05-23-17, 05:52 PM
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Originally Posted by Maelochs View Post
Myself, I usually put the patch on the tube which has the hole in it. Never really tried any other system.
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