I bike a lot, 5000 miles a year, on the road, gravel, dirt, home trainer. When I had a prostate, I avoided biking for 48-72 hours before PSA test. Now after removal, I no longer think about the timing of the test in relation to bike rides. All tests after surgery in April this year are undetectable.

The prostate is located in the space which rests on a bike saddle. One study showed a rise in PSA in men who rode within 2 days before a test. Other studies have not shown a correlation. The theory is, pressure on the prostate causes the increased release of the PS antigen. Without a prostate, I don't see why biking should affect the PSA results.