2014年1月17日星期五

Performance bike riding

Riding performance and structure about the size of a bicycle , the rider's body and the vehicle match each timber will be brisk ride , comfort and maneuverability . , And the vehicle body A, B, C3 -point contact , three points form a triangle whose sides and angles are important parameters of the bicycle. AB and AC 's length relationship to the rider can most effectively play physical . BC by the length and position of the rider and the vehicle may be customary , it determines the rider's cargo bike posture and comfort. Front and rear center distance L, fork and fork tilt angle θ T is also extending from the main parameters of a bicycle , according to the model selected . Generally , L, T and θ is greater value, the better the stability of the vehicle , from the straight running of the complex and strong , but the flexibility is poor; Conversely , L, a small value θ value T is large, the flexibility and stability of the vehicle of the hearing. L values ​​are based on the rider's body to select the material , generally 900 ~ 1200mm; θ value of 65 ° ~ 75 °; T value determined by the value of θ . Alice H of the fork is usually controlled at the center of the front wheel fork and the steering axis of the vertical position of the intersection J , J -point height from the womens mountain bikes ground is generally 15% to 60% of the radius R of the wheel . In addition, the manufacturing precision and wheel weight ( including tires ) also affects the riding performance.

没有评论:

发表评论