The center portion of the lane collects oil. That part of the lane:

Question

Oil drippings from cars collect in a strip in the center of each lane. Unless it is raining, this area still usually offers good enough traction for safe riding.

Accepted Answer

Should be avoided if it is raining.

Answer

Should always be avoided.

Answer

Offers the best traction in the lane.

Answer

Will allow you to ride faster than other parts of the lane will.

The center portion of the lane collects oil. That part of the lane:

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