User manual DAHON DAHON 2010

[. . . ] 15. Wheel Rear Derailleur Chain Crank Set Pedal Seat Post Saddle Bolts for Bottle Cage Frame Head Set Handlepost Handlebars Brake Lever Fork Brakes NOTE: This manual is not intended as a comprehensive use, service, repair or maintenance manual. Please see your dealer for all service, repairs or maintenance. 2 Contents First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Bike Fit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Safety First . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 This Manual . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 How an Internal Gear Hub Drive Train Works . . . . . . . . . . . . . . . . . . . . . . . . . 11 Shifting Internal Hub Gears . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] Disc brakes can get extremely hot with extended use. Be careful not to touch a disc brake until it has had plenty of time to cool. See the manufacturer's instructions for operation and care of your brakes. If you do not have manufacturer instructions, call your dealer or the brake manufacturer. sure your hands can reach and squeeze the brake levers. NOTE: In the UK and Japan, the right lever controls the front brake while the left lever controls the rear brake. All brakes should be adjusted according to local regulations. NOTE: Make sure that no oil or lubrication touches your brake pads or the bicycles rims' braking surfaces. Please replace worn brake shoes only with factory authorized brake replacements. How Brakes Work The action of a rim-actuated brake on a bicycle is a function of the friction between the brake surfaces -- usually the brake pads and the wheel rim. To make sure that you have maximum friction available, keep your wheel rims and brake pads clean and free of dirt, lubricants, waxes or polishes. Another important bicycle brake is a disc brake. To install disc brakes, special disc brake mounts on the frame and fork and special hubs are necessary. These brakes are small and rely on brake pads that squeeze both sides of a small disc rotor that is mounted on each wheel. Disc brakes are quite resistant to weather and provide very strong stopping power on steep hills or on wet terrain and are well suited for heavy riders. Brakes are designed to control your speed, not just to stop the bike. Maximum braking force for each wheel occurs at the point just before the wheel "locks up" (stops rotating) and starts to skid. Once the tire skids, you actually lose most of your stopping force and completely lose directional control. Brake Controls and Features It's very important to learn and remember which brake lever controls what brake. Your bike will come already set and adjusted so that the right brake lever controls the rear brake. The left lever controls the front brake. Make 9 Shifting Gears Your multi-speed bicycle will have a derailleur drive train, an internal gear hub drive train or, in some special cases, a combination of the two. How a Derailleur Drive Train Works If your bicycle has a derailleur drive train, the gear-changing mechanism will have: » A rear cassette or freewheel sprocket cluster. » One, two or three front sprockets called chain rings. » A drive chain. easier on a hill, make a downshift in one of two ways: shift the chain down (the gear "steps" to a smaller gear at the front) or shift the chain up (the gear "steps" to a larger gear at the rear. ) So, at the rear gear cluster, what is called a downshift actually moves the chain up to a larger gear. The way to keep things straight is to remember that shifting the chain in towards the centerline of the bike is for accelerating and climbing and is called a downshift. Moving the chain out or away from the centerline of the bike is for speed and is called an upshift. [. . . ] WARNING: Like any mechanical device, a bicycle and its components are subject to wear and stress. Different materials and mechanisms wear or fatigue from stress at different rates and have different life cycles. If a component's life cycle is exceeded, the component can suddenly and catastrophically fail, causing serious injury or death to the rider. Scratch- es, cracks, fraying and discoloration are signs of stress-caused fatigue and indicate that a part is at the end of its useful life and needs to be replaced. [. . . ]