| Glossary U | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 0..9 | A | B | C | D | E | F | G | H | I | J | K | L | M |
| Misc | N | O | P | Q | R | S | T | U | V | W | X | Y | Z |
Unit Construction Integrated unit consisting of the engine and gearbox within the same casings.
Unsprung Weight The weight of that part of the machine that is not sprung, ie wheels, brakes, tyres, and half of the suspension.
Upside-Down Forks Telescopic forks in which the lower section, on which the steel is mounted, telescopes into the fixed upper tube. They are sometimes called inverted telescopic forks on earlier bikes.