Question about Trek 3900

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I have 3900 disc brake. I am suffering from two problems: 1. I ride in mud and then I washed the bike with water. Now, I feel the bike is quite heavy and the rear brake is making a "chichi" sound when the bike in speed. 2. Yesterday, plastic metal with sharp nail entered into the rear Tyre and it was leaked. I somehow solved it by attaching a leak proof at the place on the tube.. But do I need to take any more precaution?

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The noise from the rear disk is from a small amount of dirt lodged in the brake pad. it will clear soon and the noise will go away. You may want to check the alignment of the brakes... google "shimano disk brake alignment" then click "images" to see how.
If the tyre is not leaking any more then the repair is ok, if the tyre goes flat, you should change the tube.

Posted on Apr 04, 2011

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Posted on Jan 02, 2017

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