Racing bicycles |
development of bicycles ( in bicycle (vehicle): Basic types )
Road-racing bicycles are designed for maximum speed and weigh about 20 pounds (9 kg). They have very light frames, narrow high-pressure tires, dropped handlebars, and derailleur gears with at least 16 speeds. Track-racing models have a single fixed gear. |
| Product Details: Click for large photos |
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| SPECIFICATION: |
1. Engine: 90cc, 4-stroke, single cylinder and air cooled 2) Tank capacity: 3.0L 3) Transmission: 4 Speed auto clutch/Semi auto 4) Starter system: Kick&Electric start |
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2. Frame: 26" steel racing bike 2) Fork: 26" steel 3) Handlebar: Steel 4) Stem: Alloy 5)
Brakes (F/R): Cantilever/V-brake 6) Chain wheel: Steel /alloy40*48T 7) Rim: Alloy. |
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3. Frame: 14" steel 2) Fork: 14" steel 3) Handlebar: folding type 4) Brakes (F/R): steel caliper/brand 5) Chain wheel: steel 1/2" x 1/8" x 52T 6) Rims: alloy 7) ... |
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4. bicycle Frame: 20" steel chopper 2) bicycle Fork: 24" steel chopper 3) bicycle Handlebar: Steel 4) bicycle Stem: Alloy 5) bicycle Brake: F/disc ... |
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