[分享] DT花鼓18齒轉36齒

Y發
參考一下DT花鼓18齒轉36齒





http://www.wheelbuilder.com/store/dt-swiss-36-step-star-ratchet-upgrade-kit.html




http://tw.myblog.yahoo.com/datoe-isme/article?mid=4636
蓋仙的部落格,有介紹