Titanium alloy hollow shaft square hole

Titanium alloy hollow square hole center shaft, using an integrated center shaft installation tool, the appearance value is better than ordinary square hole center shaft, the center shaft is multi-waterproof, and the durability is high.
The middle of the titanium alloy shaft is hollowed out, and the middle shaft within 800 is a hollow shaft of titanium alloy.
The new titanium alloy bottom bracket, titanium alloy hollow shaft center + 7075 aluminum alloy shaft and bowl structure, the shaft and bowl locking method is the same as the body bottom axis, which is convenient and more beautiful.
There are rubber rings on the front and back of the bearing for waterproofing, so there is no need to worry about water ingress. The hybrid ceramic bearing adopts Taiwan cema, the ordinary steel ball bearing is domestically produced, and the middle shaft is equipped with an aluminum alloy middle tube sleeve, which has better waterproof performance and better texture.

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