These problems were not fatal so I ignored them for years. Thanks to extremely<\/span> <\/span>rich kinds of\u00a0\u00a0merchandise sold in\u00a0Chinese web shops, I searched out the exact type of \u00a0spare parts fix my bike, and I made the decision to upgrade her.<\/span><\/p>\n \u9996\u5148\u662f\u66f4\u6362\u811a\u6491\u3002\u539f\u914d\u7684\u811a\u6491\u662f\u5355\u8fb9\u5f0f\uff0c\u5728\u635f\u574f\u524d\u8fd8\u52c9\u5f3a\u652f\u649127\u5bf8\u5927\u8f66\u4e0d\u5012\uff0c\u5982\u4eca\u5728\u51b2\u538b\u4ef6\u6298\u5f2f\u5904\u5f00\u88c2\uff0c\u5b9e\u5728\u65e0\u6cd5\u582a\u7528\u3002\u8003\u8651\u5230\u4e00\u52b3\u6c38\u9038\u5730\u89e3\u51b3\u6cca\u8f66\u4e0d\u7a33\u7684\u95ee\u9898\uff0c\u7f51\u8d2d\u4e86\u53cc\u68af\u5f0f\u811a\u6491\uff0c\u8fd9\u6837\u67b6\u8d77\u8f66\u6765\u4fbf\u7a33\u7a33\u5f53\u5f53\u3002\u56fe1\u4fbf\u662f\u6362\u4e0b\u7684\u811a\u6491\u548c\u6cca\u8f66\u72b6\u6001\u7684\u53cc\u68af\u811a\u6491\u3002<\/p>\n Waiting the spare part of gear-change, I replaced the bike stand at the first time. The original one was\u00a0prop stand that is too weak for supporting 27″ bike, I bought a double kickstand instead. Retired stand and the new one shown in Fig.1.<\/p>\n \u56fe.1(Fig.1)<\/p>\n \u7b2c\u4e8c\u4e2a\u95ee\u9898\u662f\u53d8\u901f\u5668\u63a7\u5236\u7ebf\u635f\u574f\u5bfc\u81f4\u65e0\u6cd5\u53d8\u901f\u7684\u95ee\u9898\u3002<\/p>\n The gear-change problem was solved the other day.<\/p>\n \u5148\u89e3\u91ca\u4e0b\u79a7\u739b\u8bfaNEXUS\u53d8\u901f\u5668(\u7ef4\u57fa\u767e\u79d1\u94fe\u63a5<\/a>)\u5916\u90e8\u63a7\u5236\u7684\u539f\u7406\u3002\u56fe2\u662f\u5916\u89c2\uff0c\u56fe3\u662f\u539f\u7406\u56fe\u3002\u5982\u56fe3(a)\u662f\u53d8\u901f\u63a7\u5236\u7ebf\u91ca\u653e\u72b6\u6001\uff0c\u53d8\u901f\u6746\u4f38\u51fa\uff0c\u6863\u4f4d\u662f1\u6863\uff0c\u901f\u5ea6\u6700\u6162\u3002\u5f53\u624b\u62e8\u8c03\u9ad8\u6863\u4f4d\u81f32\u62163\u6863\u5230\u9ad8\u901f\u6863\u65f6\uff0c\u63a7\u5236\u7ebf\u7ef7\u7d27\uff0c\u6760\u6746\u5c06\u53d8\u901f\u6746\u538b\u5165\u8f74\u5185\uff0c\u6539\u53d8\u5185\u53d8\u901f\u4f20\u52a8\u6bd4\u3002\u6ce8\u610f\u56fe3\u4e2d\u7684\u94a2\u73e0\uff0c\u90a3\u4e2a\u662f\u63a7\u5236\u7ebf\u62c9\u52a8\u6760\u6746\u7684\u65bd\u529b\u4ef6\uff0c\u6211\u7684\u81ea\u884c\u8f66\u7684\u63a7\u5236\u7ebf\u94a2\u73e0\u8131\u843d\u4e86\uff0c\u6240\u4ee5\u6ca1\u6cd5\u62c9\u52a8\u6760\u6746\u53d8\u901f\u3002<\/p>\n It is\u00a0SHIMANO NEXUS 3-speed-change system (Wikipedia Link<\/a>) . You can see what’s it like in Fig.2 and how it woks in Fig.3. When control cable release at Gear-1 (Low), the pin was released, too (Fig.3(a)). After you turn the\u00a0shift lever set by right hand, the cable tension and the pin is pressed into gear-box by pry bar\u00a0that will change the gear ratio at Gear-2 or Gear-3 (High), as you can see from Fig.3(b).<\/p>\n \u56fe.2(Fig.2)<\/p>\n \u56fe.3(Fig.3)<\/p>\n \u574f\u6389\u7684\u63a7\u5236\u7ebf\u672b\u7aef\u5982\u56fe4\u3002<\/p>\n The tail of \u00a0broken cable as Fig.4.<\/p>\n \u56fe.4(Fig.4)<\/p>\n \u7531\u4e8e\u94a2\u73e0\u662f\u76f4\u63a5\u5305\u7d27\u63a7\u5236\u7ebf\u672b\u7aef\u7684\uff0c\u6211\u7684\u5de5\u5177\u6761\u4ef6\u6ca1\u6cd5\u81ea\u5236\u7ef4\u4fee\u3002\u539f\u6253\u7b97\u662f\u5728\u94a2\u4e1d\u672b\u7aef\u6253\u4e00\u4e2a\u7ed3\u6765\u66ff\u4ee3\u94a2\u73e0\u7684\u4f5c\u7528\uff0c\u4f46\u662f\u53d1\u73b0\u94a2\u4e1d\u5f39\u6027\u592a\u5927\uff0c\u6ca1\u6cd5\u6210\u578b\u3002\u6240\u4ee5\u53ea\u597d\u66f4\u6362\u6574\u6761\u63a7\u5236\u7ebf\u3002\u5982\u56fe5\uff0c\u7f51\u8d2d\u7684\u63a7\u5236\u7ebf\u5230\u8d27\u4e86\uff0c\u5de6\u4fa7\u662f\u53d8\u901f\u5668\u7aef\uff0c\u53f3\u4fa7\u662f\u624b\u62e8\u7aef\u3002<\/p>\n The iron ball was attach to the wire\u00a0rigid that I can not fix by tools I have, and the plan that tight knot was failed. Then I have to replace the hole control cable. Luckily I found it in web shop. Look at the Fig.5, the left side iss the end at gear-box side\u00a0and\u00a0the right one should be attached to\u00a0controller at the\u00a0handle-bar.<\/p>\n \u56fe.5(Fig.5)<\/p>\n \u6362\u597d\u540e\u7684\u6837\u5b50\u5982\u56fe6(\u53d8\u901f\u5668\u7aef)\u548c\u56fe7(\u624b\u62e8\u7aef)\u3002<\/p>\n That is the appearance of gear-box side (Fig.6) and the hand-controller (Fig.7).<\/p>\n \u56fe.6(Fig.6)<\/p>\n \u56fe.7(Fig.7)<\/p>\n","protected":false},"excerpt":{"rendered":"
\n![\"20151108-BikeUpgrading](\"http:\/\/goyuwei.com\/blog\/wp-content\/uploads\/2015\/11\/20151108-BikeUpgrading-7.jpg\")
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