BSA / EXTERNAL BB for SRAM
SUPER LIGHT EXPANDER
1-1/8" Upper / 1.5" Bottom
Starting from 1984, we are factory of pressing mold design and production at the very beginning.
By 1990, we change the company name to Cheng Dar, mainly for pressing and forging production.
By 2001, we set up new factory YANTEC, at the beginning, YANTEC is for NC, and CNC.
By 2010,we move to our current factory location in HOULI, and set up for 3 area : Area 1 : for cold forging, hot forging, and pressing production. Area 2 : for NC and CNC production. Area 3 : for office, warehouse, and packaging dep..
At beginning, we are OEM factory for BICYCLE BRANDS, pressing, CNC, forging is our core value.
By these years, for the target to keep our production in Taiwan, we are promoting our own brand “PRESTINE”, with headset & B.B. as our main product.
We also earned many recognition on the self product development, such as the 6th grade of 2008 INNO-BIKE necessary part & champion of 2011 INNO-BIKE headset, and more than 40 items of domestic and foreign patents.
Besides OEM, we are also working hard for the opportunity to cooperate new product development with customers, and gain the experience for different spare part / product development.
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