| 摘要 |
PROBLEM TO BE SOLVED: To overcome a problem that a conventional bicycle user feels that a bicycle is heavy, a load becomes an excessive load on a slope and pedal stroke motion is accompanied with pain for long time riding, and to attain relaxation.SOLUTION: A speed adjuster body is mounted to a position between a chain wheel (gear) and the followed chain wheels of a rear wheel connected by a chain to perform installation. Pedal operation is performed by successively feeding rotation by an original chain wheel and the chain. The rotation reaches to the followed chain wheel of the rear wheel and the amplified rotation is transmitted to the followed chain wheel. |
