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Your quick reference guide to bikes.
| Front suspension | Suspension forks cushioning the front wheel only. |
| Dual suspension | Suspension over both wheels, meaning they have more contact with the ground for a smoother, more responsive ride. |
| Alloy frame | Made from lightweight aluminium, more common in road and racing bikes, which need to be more aerodynamic. |
| Steel frame | Stronger but heavier than alloy frames, found on more robust bikes (e.g. mountain bikes and BMXs). |
| Gears | Different sized cogs that your chain latches onto – the more gears (and cogs) your bike has, the easier it is to pedal up hills. |
| Twist mechanism | Lets you change gears by twisting a dial on the handlebars. |
| Lever mechanism | Lets you change gears by flicking a lever mounted on your bike’s handlebars or fixed to the frame. |
| Calliper brakes | Found on all types of bike. |
| V-brakes | Pivots for the brake arms are mounted to the frame on the bike, making a V shape. |
| Disc brakes | More common on mountain bikes as they last longer and perform better in all kinds of weather. |
| Inside leg | The distance from the floor to the top of the inside of your leg. |
| Stunt pegs | Pegs that stick out a short distance from both sides of one or both wheels on BMX bikes, for riders to jump onto when they’re doing tricks. |
| 360 degree gyro | A mechanism that lets the handlebars on a BMX turn a full 360 degrees – great for certain stunts. |
| Dial style | A mechanism for tightening and loosening your cycle helmet. |
| EN1078 | The European safety standard for cycle helmets, specifying the requirements and test methods for bicycle helmets. |
| Krypton lights | Bike lights with bulbs containing krypton gas, which produce 50% more light than normal vacuum bulbs |
| Halogen lights | Bike lights with bulbs containing halogen gas, producing up to 150% more light than normal vacuum bulbs. |
| LED lights | Lights containing light emitting diodes. These don’t have filaments and never need replacing. They use a lot less power than normal bulbs and are much smaller |