Hyperon

車友組車到一定的水準後, 相信不會甘於只騎尋常公路, 以台灣多丘陵多山的地形, 加上現在山上的小徑的路面幾乎都鋪設的超好的, 每每騎在其中都驚豔於山中的景色與寧靜還有超棒的柏油路面。一般都市道路路面騎起來反而還覺得坑坑疤疤的 !

我一開始使用 HYPERON , 此輪組的優點 重量輕, 剛性高 , 是非常好的爬坡輪, 另外我自己覺得的優點是整個輪組黑不愣咚的, 外人不細看根本不知道這是啥輪組, 非常的深沈內斂, 搭配現代化的車架或是要組成復古風格都是非常好搭配。缺點是平路時必須持續踩踏來保持動力, 一點慣性也沒有。

後來藉著組老婆的車子敗了06年的 EURUS, (其實心中的詭計是到時我想要用什麼輪組時就可以拆換),
新一代的EURUS 造型真是非常的現代化, 今年的花東就使用這組去參賽。EURUS 各方面也都不錯。
花東之後, 老婆的車子組好了, EURUS 移過去就再也沒拆過來玩了 !

兩者相較之下, EURUS 是歸類於MID-Profile, 感覺上平路上慣性是多了那麼一點點, 但是最後我還是回到HYPERON 的懷抱中, 我喜歡他的剛性( 感覺比06 EURUS 剛硬), 瞬間加速快, 相信大家較在意的是爬坡時的表現, 這是HYPERON的強項 ！ 衝下坡 ？ 沒問題, 剛性強, 煞車犀利, 信心十足 !!
平路沒慣性 ? 就當作是練習迴轉速的好機會吧 ! 平路衝刺 ? 剛性強重量輕, 瞬間加速很快 !!

相信平路騎乘時, 去程一般都是上山前的熱身不然就是與車友聊天, 回程大多也是剛剛山中拼命後的休息階段, 也許剛剛騎不夠時在某路段小衝一下玩玩 ! 推薦全面性的輪組 ? 在台灣，我會選擇 HYPERON !!

2007 Mar 最近取得了陶瓷滾珠, 煩請 Rocky 換好後再來試騎,看看是不是有很大的差別 ....

Benefits of Ceramic bearings

• Very low friction. The friction in a typical bearing with silicon nitride balls and steel rings is about 10 % less than in an all steel configuration.
  
• Increased stiffness. Higher stiffness from the silicon nitride balls will increase stiffness in the bottom bracket and hubs.
  
• Extremely wear resistant because of the hardness. The ceramic material is much harder than the hardest of bearing steels.
  
• Weight reduction. Silicon nitride is 60% lighter than steel. This gives less material to accelerate when the speed changes and thus results in a quicker response of the bicycle.
  
• Safe operation even when using low amounts lubricant. This gives greater possibility to reduce the friction coming from lubricant viscous drag.
  
• Tolerant to dirt and dust. Although bearings work best in clean environments the ceramic balls help the bearing to survive also under less pure conditions.
  
• Together with special seals and lubrication the friction in ceramic bearings can be some 20-30 times lower than steel bearings with standard friction seals and standard lubrication.

• Lightweight/Acceleration - Ceramic balls weigh less than steels balls which reduces centrifugal loading. Ceramic bearings can operate faster than conventional bearings. This means that the ball exerts less force outward against the outer race grove as the bearing spins. This reduction in outward force reduces the friction and rolling resistance. The lighter ball allows the bearing to rev up faster, and uses less energy to maintain it speed. For example, if you upgrade wheels, bottom bracket bearings and pulley wheels, you can save up to 10 watts.
  
• Less heat/Lower Friction - Ceramic Bearings do not heat up like standard bearings. Lower friction leads to less wear, less lubrication, less energy consumption, reduced vibration while extending bearing life.
  
• Smoother Surface - The ceramic ball has smoother surface properties than the steel ball. This means less friction between the ball and bearing races and less vibration giving you a faster spinning bearing and smoother ride.
  
• Stronger - Silicon nitride balls have a very high ball hardness that helps "Push" contaminates from the pathway.
  
• Corrosion Resistance - The Ceramic balls are impervious to oxidation, chemicals, and require essentially no lubricant. The bearings are lubricated with special Ceramic grease.

目前 陶瓷滾珠市場上約有兩種, Grade 5和 Garde 3

Grade 3 5 10 25
Size Range 006-1/2" .006-1/2" .006-7/8" .006-1"
Deviation from Spherical Form .000003 .000005 .00001 .000025
Lot Diameter Variation ±.000003 ±.000005 ±.000010 ±.000025
Allowable Ball Gage Variation ±.00003 ±.00005 ±.00005 ±.00010
Nominal Ball Diameter Tolerance - - - -
Marking Increments 0.00001 0.00001 0.00001 0.00001
Maximum Surface Roughness†in Microinches“Ra” .5 .8 1.0 2.0

Grade 3 最為精細,價格也最高, Grade5 較為平易近人,個人覺得C/P值最高,一般CAMP內的鐵珠為Grade25, 不管Grade 3或是Grade 5 的陶瓷滾珠均遠比原來的鋼珠來的平滑與精細 !!

9 Jan 07, 今天在車店,Rocky說滾珠換好了, 想說趕緊拿回家換上去在練習台上踩踩看, 沒想到又被公司叫去上班了........

滾珠換好之後, 拿起來轉一轉, 感覺更加平順與綿密, 其實原先的鋼珠軸承已算非常滑順，然而陶瓷滾珠騎起來讓你感覺好似冰刀在冰上滑過去一般毫無一絲阻力，算是非常值的的改裝，改裝後才騎一次而已，耐久性容我半年或一年後再來報告！