Glossary of Bicycling - O

O

off the back
Getting dropped from the group/peloton.
omnium
An omnium is a multi-stage event that differs from a stage race in that points are assigned for placing in each stage rather than a time. Therefore a rider may win with a slower time than another rider, but more points. Conceivably a rider can win the omnium without finishing each event.
on bread and water
Is said of a rider who relies exclusively on good diet and exercise to perform in races. This type of rider refuses to use any form of doping. Can also be said of a performance realised while racing clean at the time the result was achieved. (Example: "I won the criterium on bread and water but then the big race came and...")
on the rivet
A rider who is riding at maximum speed. When riding at maximum power output, a road racer often perches on the front tip of the saddle (seat), where the shell of an old-style leather saddle would be attached to the saddle frame with a rivet.
on your wheel
The condition of being very close to the rear wheel of the rider ahead of you. Used to inform the rider that you have positioned yourself in their slipstream for optimum drafting. For example: "I'm on your wheel".
open road race
Generally going from point A to point B; can include multi-laps. Can also mean a club event in which non-club members can enter.
overlap
Riding in a position such that the leading edge of one's front wheel is ahead of the trailing edge of the rear wheel of the bicycle immediately ahead. Overlap is potentially dangerous because of the instability that results if the wheels rub, and the simple fact that it allows the trailing rider to turn only in one direction (away from the wheel of the rider ahead). In road bicycle racing, overlap can be a significant cause of crashes, so beginning riders are instructed to "protect your front wheel" (avoid overlap) whenever riding in a pack.
over the bars
Unexpected and sudden dismount, either caused by braking too hard with the front wheel or by a road hazard.

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