His kind of road bikes are geared, so he has a lot of ratios to choose from. A typical range for a road bike would be 12-25 at the rear and 53-39 at the front, giving a highest ratio of 53/12 and a lowest ratio of 39/25. For a mountainous race he can change to larget sprockets at the rear and smaller chainrings at the front. Something like 50-34 at the front and 12-27 rear.
Both, and several inbetween. The gear is chosen to get the same pedalling effort regardless if the course is uphill, flat or downhill at the moment.Ans 2 - Most pro riders will use all the gears necesary to maintain a good 'spin' speed. (rpm of the crank )
,gears are used in a bicycle to paddle less and and to gain more speed It is also used in hills because there are steep slopes and if we put it in gear we have to paddle less. Mukul Thakur shimla
Hero Octane Genius 26TPrice of Hero Octane Genius 26T 21 speed bicycle : Rs. 19,125Bicycle Features:Front and rear shoxAluminum alloy frameFront and rear disc brakes21-speed Shimano Rapid Fire Gear System
During flat time trials Lance maintains a cadence of 100-115 rpm. He is using a lower gear than most other cyclists, but is pedaling faster than them. Rather than using leg power and sheer muscle strength (as did all the early competitive cyclists throughout the 1900s up until the time of Miguel "Big Mig" Indurain), Armstrong relies on superior cardio fitness to carry him through the mountains. Nowadays, the only cyclists who mash huge gears are the ones with very muscular legs, Jan Ullrich being a prime example. Lances climbing cadence is different however around 80-85rpm, but up to 100rpm when attacking on a long solo breakaway when the gradient lessens during a climbing attack. One reason why Jan and Lance were so exciting to watch together: they had such different styles-and so lance 'looked' faster than yan or any climbers, though he was only going marginally quicker than them...
Top Gear of course
The speed ratio of a bicycle is the (gear ratio* radius of the wheel)/ Length of the pedal arm.
buy it from mellow johnny's its lance armstrong's bike shop so you know its gotta be good. what what give it up
because of the gear ratio and the chain
Lance Gear is 5' 11".
In 1999, Lance Armstrong won the Tour de France for the first time, using a Trek 5200 bicycle. In future races, Armstrong rode other Models of Trek Bikes, notably including the 14.5 pound Trek 5900 SL in 2003, which was banned the following year due to new weight requirements for the Tour de France (the rule required all bicycles taking part in the race to weigh at least 15 pounds - or 6.8 kilograms).
The best gear ratio for climbing a hill on a bicycle depends on factors such as the steepness of the hill, your fitness level, and personal preference. Generally, a lower gear ratio (larger front chainring and smaller rear cassette) will make it easier to climb steep hills by allowing you to pedal at a higher cadence. Ultimately, it's best to experiment with different gear ratios to find what works best for you.
Lance Gear was born on October 13, 1970, in Detroit, Michigan, USA.
A bicycle is both.
Bicycle gears are measured in inches. The formula is 27 (Size of wheel.) divide by number of teeth on rear sprocket. Multiplied by the number of teeth on chainwheel. Example 27 divide by 18, times 50, equals 75.0 inch gear.
The gear ratio of a train, also known as its speed ratio, is the ratio of the angular velocity of the input gear to the velocity of the output gear. The gear ratio is very important when it comes to physics.
Incorrect gear ratio in first gear.Incorrect gear ratio in first gear.
The ratio is the driven gear divided by the driver gear. This determines the gear ratio.