自行车构造词汇表

gear change mechanism three-speed gear chain chain guard sprocket wheel chain wheel to pedal mudguard pedal valve inner tube tyre rim butterfly nut wing nut spoke front wheel ball bearing reflector rear light front light lamp lamp bracket dynamo front fork gear change gear lever crossbar lightweight frame carrier saddlebag saddle springs saddle brake cable brake rubber brake shoe brake handle back brake front brake hooter bell handlebar grips drop handlebars racing handlebars handlebars