2011年6月20日 – 在过去的4年里，Shimano Dura-Ace
Di2带有电子变速功能的组件已被专业选手用于各个世界大赛:
越过最高的山峰，极端恶劣的气候条件，穿过糟糕的道路及轨道。现在，是时候来介绍这项革命性的技术被用于SHIMANO
ULTEGRA系列，以满足更广泛的公路车手及自行车发烧友。
Di2 (Digital Integrated Intelligence)
的优势对所有体验过的人都是显而易见的：变速变得简单,
毫不费力并且快速，仅仅是通过触碰变速按钮，用你的指尖去控制。另外还包括自动能够调整的前拨链器, 实现无与伦比的精确变速及超级容易的安装和调整。
SHIMANO
ULTEGRA 带有Di2技术的6770 系列，包含双控手柄, 电子操控的前、后拨链器，一套电池组及电线电缆。剩下的零件 –
像中空二代曲柄组, 刹车夹板, 卡式飞轮和链条 – 你可以沿用SHIMANO ULTEGRA 6700机械系列的零件组。
这套电线里有2条电芯 (DURA-ACE Di2 有4条)，连接器也小得多，直径只有5.1mm (比DURA-ACE Di2小了3.7mm)。即插即用系统的电线非常方便地适用于各种尺寸的车架。可通过连接PC对系统进行诊断及转换变速按钮的操作方向。
SEIS (Shimano Electronic Intelligence System) 是基于多年来被证实具有优秀变速特性的Shimano定位变速系统 (SIS) 。倘若要说最大的不同, 便是由电子操控来代替机械操作完成变速动作。
ULTEGRA 6770 产品仅有新ULTEGRA 冰灰色。产品不兼容于DURA-ACE Di2。
上市时间： 2011年10月。
2012年6月18日 星期一
2012年4月24日 星期二
關於坡度單位%與度數的迷思
最近01有篇談及新聞報導台中有一「杜拜坡」坡度高達40度的問題，有可能嗎？雖然是老掉牙的月經文了，不過想再做一次解釋，免得未知的車友有如此的錯誤認知，畢竟陡坡視覺上真的是會讓人產生有那種角度的錯覺。
首先來瞭解一下坡度的定義：坡度（%）＝（垂直上升高度（公尺）/ 距離）*100。至於分母距離是指兩地點間的投影水平距離，還是實際行走距離，各有人說，然而實際上角度在19度之內，兩者所計算出的的坡度值相差不超過2%，所以我想就不用再去鑽牛角尖了。對於單車爬坡來說，我會偏向「實際行走距離」（sin值），簡單說就是：每行進 一百公尺 ，爬升了多少高度。
猜猜看這幾%呢？「看」起來應該有30度吧！？哈～很抱歉，這照片攝於湖底路第一階段陡坡，實際坡度區間為14%~18%左右，所以最陡處，了不起也才10度而已。不相信？那就學鐵支路大大，隨身帶個儀器量測，你就會明白我所說的視覺上的錯覺
這是北部三大陡坡之一的「碎心坡」，哇～看起來超過30度喔。同樣地也沒那麼誇張啦，最陡處實際坡度約29%，換算成角度才17度左右。跟警示牌上寫的：此為60度的狹隘路面，實在是相差甚遠。
■烘爐地「奪命吐血坡」，最陡處為19%
■二子坪往大屯山助航站途中的魔鬼陡坡，最陡處為19.4%
■熊空越嶺最陡處為21.2%
■承天禪寺「好漢坡」 ，最陡處為25%
2011年10月30日 星期日
2011年10月11日 星期二
第二屆羅馬公路縱橫挑戰賽貓友們成績公布
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2011年9月9日 星期五
SHIMANO ULTEGRA 为大众带来Di2技术 上市时间： 2011年10月。
SHIMANO ULTEGRA 为大众带来Di2技术
易于操作的电子变速按钮
直观的档位显示, 与机械ULTEGRA组件相似
达到机械调整原理要求 – 适合所有尺寸大小的手
重量: 313g/对
快速、精确及顺滑的电子变速 – 高负荷时轻松变速
容易的电子调整系统
快速释放功能
更广范围的齿数比 – 与 11-28T 卡式飞轮相兼容
重量: 270g
快速、精确及顺滑的电子变速 – 高负荷时轻松变速
自动修整功能
重量: 162g
高性能锂电池 (7.4V)
易于安装或卸除后充电
充电时间: 90分钟充满
重量: 71g
充电器指示器装置
后拨链器调整模式
SHIMANO Ultegra brings Di2 technology to the masses
NUNSPEET, The Netherlands, 20. June 2011 –
Professional riders have been using the SHIMANO DURA-ACE components with
Di2 electronic shifting technology in the biggest races in the world
over the past four years: over the highest mountains, in the most
extreme weather conditions and over the worst possible roads and cyclo
cross tracks. Now it is time to introduce this revolutionary technology
into the SHIMANO ULTEGRA, making it available to a much wider group of
road racers and enthusiasts.
The advantages of Di2 (Digital Integrated Intelligence) are clear for everybody who has tested it: changing gears becomes easier, effortless and faster by simply touching the shift buttons. Control at the top of your fingers. Additional benefits include an automatic trimming front derailleur, unmatched precision plus super easy installation and adjustment.
SHIMANO ULTEGRA 6770 series with Di2 technology consists of Dual Control Levers, electronically operated front and rear derailleurs, a battery and electric cables. For the remaining components - like HOLLOWTECH II crankset, brake calipers, cassette sprockets and chain – you can rely on the products of the mechanical SHIMANO ULTEGRA 6700 component group.
The electric cables include only two core wires (DURA-ACE Di2 has four) and the connectors are smaller too with a diameter of 5.1mm (-3.7mm compared to DURA-ACE Di2). Easy plug and play system to connect the cables, which will be available in different lengths to accommodate most frame dimensions. Connection with PC for diagnosis and changing the shifting order.
The SEIS (Shimano Electronic Intelligence System) is based on the Shimano Index System (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics.
ULTEGRA 6770 products will exclusively become available in the new ULTEGRA glossy grey color. The products are not compatible with DURA-ACE Di2.
SHIMANO ULTEGRA Di2 Product specs:
ST-6770 Dual Control Levers (10-speed, for double crank sets)
Effortless electronic push button shifting
Intuitive operation, similar to mechanical ULTEGRA
Reach adjust mechanism – fits all hand sizes
Weight: 313g/pair
RD-6770 Rear Derailleur (10-speed)
Fast, precise and smooth electronic shifting – even under load
Easy electronic adjustment system
Crash saver function
Wide gear ratio – Compatible with 11-28T cassette sprockets
Weight: 270g
FD-6770 Front Derailleur (10-speed, for double cranksets)
Fast, precise and smooth electronic shifting – even under load
Automatic trim function
Weight: 162g
SM-BTR1 Battery
High performance lithium ion battery (7.4V)
Easy to assemble/remove for charging
Charging time: maximum 90 minutes
Weight: 71g
SM-EW67-A-E Electric Cable Junction
Battery charge indicator
Rear derailleur adjustment mode
SHIMANO ULTEGRA Di2 产品配置:
ST-6770 双控手柄 (10-速, 适用2片式链轮)
易于操作的电子变速按钮
直观的档位显示, 与机械ULTEGRA组件相似
达到机械调整原理要求 – 适合所有尺寸大小的手
重量: 313g/对
RD-6770 后拨链器 (10-速)
快速、精确及顺滑的电子变速 – 高负荷时轻松变速
容易的电子调整系统
快速释放功能
更广范围的齿数比 – 与 11-28T 卡式飞轮相兼容
重量: 270g
FD-6770 前拨链器 (10-速, 适用双片链轮)
快速、精确及顺滑的电子变速 – 高负荷时轻松变速
自动修整功能
重量: 162g
SM-BTR1 蓄电池
高性能锂电池 (7.4V)
易于安装或卸除后充电
充电时间: 90分钟充满
重量: 71g
SM-EW67-A-E 连接电缆
充电器指示器装置
后拨链器调整模式
SHIMANO Ultegra brings Di2 technology to the masses
The advantages of Di2 (Digital Integrated Intelligence) are clear for everybody who has tested it: changing gears becomes easier, effortless and faster by simply touching the shift buttons. Control at the top of your fingers. Additional benefits include an automatic trimming front derailleur, unmatched precision plus super easy installation and adjustment.
SHIMANO ULTEGRA 6770 series with Di2 technology consists of Dual Control Levers, electronically operated front and rear derailleurs, a battery and electric cables. For the remaining components - like HOLLOWTECH II crankset, brake calipers, cassette sprockets and chain – you can rely on the products of the mechanical SHIMANO ULTEGRA 6700 component group.
The electric cables include only two core wires (DURA-ACE Di2 has four) and the connectors are smaller too with a diameter of 5.1mm (-3.7mm compared to DURA-ACE Di2). Easy plug and play system to connect the cables, which will be available in different lengths to accommodate most frame dimensions. Connection with PC for diagnosis and changing the shifting order.
The SEIS (Shimano Electronic Intelligence System) is based on the Shimano Index System (SIS) that has proved its superior gear changing characteristics over the years. The big difference is that in this case, the shifting action is provided for by electronics instead of mechanics.
ULTEGRA 6770 products will exclusively become available in the new ULTEGRA glossy grey color. The products are not compatible with DURA-ACE Di2.
SHIMANO ULTEGRA Di2 Product specs:
ST-6770 Dual Control Levers (10-speed, for double crank sets)
Effortless electronic push button shifting
Intuitive operation, similar to mechanical ULTEGRA
Reach adjust mechanism – fits all hand sizes
Weight: 313g/pair
RD-6770 Rear Derailleur (10-speed)
Fast, precise and smooth electronic shifting – even under load
Easy electronic adjustment system
Crash saver function
Wide gear ratio – Compatible with 11-28T cassette sprockets
Weight: 270g
FD-6770 Front Derailleur (10-speed, for double cranksets)
Fast, precise and smooth electronic shifting – even under load
Automatic trim function
Weight: 162g
SM-BTR1 Battery
High performance lithium ion battery (7.4V)
Easy to assemble/remove for charging
Charging time: maximum 90 minutes
Weight: 71g
SM-EW67-A-E Electric Cable Junction
Battery charge indicator
Rear derailleur adjustment mode
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