Quote:
Originally Posted by undercoverbs
My problem is that suddenly the bike feels very unbalanced.
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Most certainly a tire, wheel or suspension problem.
First, how about finding a tire gauge and putting the proper amount of air in both.
Then, carefully inspect the tires, rims, front and rear axles, chain slack (which might give you a clue that the rear axle is not tight), shocks (forks in front) and rear springs.
The most common causes of that are: very low air pressure, tires worn excessivley or unevenly OR rear wheel not aligned straight.