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| Alloy |
- it makes frames and rims lighter and stronger |
| Bar ends |
- extensions to the handlebars |
| Big ring |
- the largest of the front chainwheels |
| Butted tubes |
- either double or triple - frame tubing which has walls which go thin at the centre to reduce weight |
| Cadence |
- the speed at which you pedal, aim for 80-100 rpm |
| Cleats |
- the mechanism that is screwed to the sole of the shoe to fit clipless pedals |
| Clipless pedals |
- your shoe is attached to the pedal with cleats |
| Computer |
- measures your speed, distance travelled, cadence etc |
| Cro-mo (chromoly) |
- short for chrome-molybdenum. This is high tensile, steel alloy used for making cycle frames |
| Granny ring |
- the smallest of the chainwheels |
| Groupset |
- collective term for all the main components of the bicycle |
| Halogen |
- a very bright, white light |
| Honking |
- not what you think! - the term used for pedalling out of the saddle when going up hill, sprinting, or just to stretch your legs |
| Knobblies |
- the term given to deep tread tyres often found on mountain bikes |
| LED |
- light emiting diode - a small but very bright light |
| Pannier bags |
- cycle luggage which attaches to the bike rack |
| Pilot (or captain) |
- the rider on the front of a tandem |
| Presta valve |
- the long thin valve found on road, touring and hybrid bikes |
| Quick release (QR) skewers |
- a means of tightening and releasing a wheel quickly |
| Schraeder valve |
- the fat valve, mainly found on mountain bikes |
| Semi-slicks |
- tyres with partial or shallow tread found on hybrid, touring and citybikes |
| Slicks |
- sticky tyres with no tread |
| Shifter |
- gear changing lever |
| Snell |
- the 'Snell Foundation' carries out safety tests on helmets |
| SPD |
- 'Shimano Pedalling Dynamics' - Shimano's term for its clipless pedals |
| SPUD's |
- slang term for SPD's |
| Stoker |
- the person on the back of the tandem |
| Twist shift |
- method of changing gear by twisting part of the grip on the handlebar |
| Wheelbase |
- the distance between the wheel axles |
