Callaway Big Bertha 21 driver review/測試！～上集

這次來測試新款Callaway Big Bertha B21木桿。這是在2021下半年推出，從外型看起來是走易打，高容錯的風格。桿頭外型是御飯糰的3角形設計。這類桿頭風格就是高MOI，可以讓桿頭更快回正，桿面觸球可以比較方正。所以這類產品就是以新手、假日球友和高差點為主。

而它利用的技術大多是目前epic上有的東西，比如AI桿面，Jailbreak/桿面後面2根棍子。只是外型上有不同。我測試的木桿是10.5度，搭配原廠55克的桿身R硬度，長度在45.25“。實際感覺這木桿的長度會稍微短一點，因為桿頭視覺上很大。會覺得身體和桿頭離很近。換個角度說就是，這桿頭適合裝長。要想打遠，這樣的桿頭特性是可以讓你發揮易打、高容錯和遠距離。

所以如果再長一點會比較好，但如果以使用角度來說，這樣的長度是比較容易控制球桿。而桿頭上有一個配重螺絲設計，可以讓球友依據自己對揮桿重量的要求來進行調整和更換。這是比較方便調整桿頭重量。如果你長度設定比較在乎，可以把長度設定到你要的需求，對於重量感就可以自行的取調整。

我使用Maxfli的3層surlyn表皮的球款來進行測試，看看能否得到比較好的距離結果？我測試約20球，然後隔天再打20球，觀察擊球的結果和數據表現。首先，我最喜歡的是這個桿頭的回饋。它的回饋感比epic要更好。擊球在甜蜜點和周圍的熱區都可以感受到中球的位置和擠壓球的感覺。

爽度滿分，很舒服也可以明顯知道打在桿面的哪個位置。同時也可以感受到球被擊中，球彈出去的回饋。相當熱血的一款桿頭回饋。這部分就很值回票價了！可以感覺Callaway這3年來的桿面技術越來越成熟，把以前Epic Flash那種鐵板一塊，逐漸修正到目前的擊球爽度破表的狀況。實在要給個讚！

本文未完，下集請點下方。

Callaway Big Bertha 21 driver review/測試！～下集
http://www.peargolf.com/article/callaway-big-bertha-21-driver-reviewcesh...

This time I try out the new Big Bertha B21 driver indoor and to see how this driver is different with Epic and Mavrik? This driver is released in mid of the 2021 and is targeting for entrance and high handicappers with forgiving, and easy to swing features. The head looks bigger with triangle shape with maximum MOI and other Callaway driver head technologies including AI face and jailbreak.

The demo driver I receive is the 10.5 loft with 55 gram regular flex shaft, the length is 45.25". Physically it looks bigger with the length combination. I would say to make it 45.50" will be better fit with such head size and length ratio. The head has the weight screw to adjust the head weight that golfers can change the swing weight of the driver by themselves.

I use 3 layer surlyn golfer ball from Maxfli balls to see how this driver can deliver the distance and feel? When I play the first 10 shots, it's pretty solid feedback and you can feel where you hit on the face. I like this driver's feedback and more fun with interaction. The feedback is good with compressing the ball then releasing with bouncing feel. I would say the feedback is better than Epic drivers.

My swing can 100% control the driver without problem as my hitting area is on the center hot zone. Even it's off swing spot of the face is a little hard feel and overall the feel is impressive. I would say if your swing speed is below 100mph, it will be a good partner to play and you can handle it easily without difficulty or overloading.

Callaway Big Bertha 21 driver review！～Part II
http://www.peargolf.com/article/callaway-big-bertha-21-driver-reviewcesh...

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