This bike uses a sealed bearing bottom bracket for smooth pedaling.
这款自行车采用密封轴承中轴，踩踏顺滑。
The BB unit reduces friction and improves power transfer efficiency.
中轴组件减少摩擦，提升动力传输效率。
Upgrade to a ceramic bearing bottom bracket for better performance.
升级陶瓷轴承中轴可显著提升骑行表现。
Proper installation ensures the crankset bearing hub lasts longer.
正确安装能延长曲柄轴承中轴使用寿命。
This mountain bike’s BB unit handles rough terrain with ease.
这款山地车的中轴轻松应对复杂路况。
The integrated spindle assembly resists corrosion in wet conditions.
集成轴心中轴在潮湿环境下抗腐蚀性强。
Choose the right bottom bracket for your frame’s thread standard.
根据车架螺纹标准选配合适中轴。
High-quality bearings reduce noise during long-distance rides.
优质轴承让长途骑行更安静。
Dual-sealed design keeps dirt and water out of the BB unit.
双密封设计有效防尘防水进入中轴。
Regular maintenance extends the life of your bearing bottom bracket.
定期保养可延长轴承中轴使用年限。
Discover the heart of smooth cycling — our premium Bearing Bottom Bracket, model BB-ProX 386EVO, is engineered for peak performance. Available in black, silver, and matte gray, this high-precision component weighs just 120g and fits all major frame standards including Shimano, SRAM, and Campagnolo systems.
Made from aerospace-grade aluminum alloy with a fully sealed stainless steel bearing core, it delivers exceptional durability and resistance to moisture and debris. Whether you're commuting or racing, the BB-ProX ensures seamless power transfer and whisper-quiet operation mile after mile.
The integrated spindle design enhances rigidity, reducing flex and improving pedal efficiency by up to 15%. Installation is tool-friendly thanks to its standardized threading, and the dual-lip seals provide long-term protection against dust and rain.
Backed by thousands of positive reviews from cyclists worldwide, this BB unit has become a go-to upgrade for enthusiasts seeking reliability and responsiveness. Priced competitively under $89, it's an intelligent investment for any serious rider. Experience smoother rides — upgrade your crankset bearing hub today!
探索顺滑骑行的核心秘密——我们高端轴承中轴BB-ProX 386EVO型号，专为极致性能而生！提供黑色、银色和哑光灰三种配色，重量仅120克，适配Shimano、SRAM、Campagnolo等主流变速系统及车架五通标准，兼容性强。
采用航空级铝合金外壳搭配全封闭不锈钢轴承芯，不仅坚固耐用，更能有效抵御湿气与灰尘侵入。无论是城市通勤还是公路竞速，BB-ProX都能实现高效动力传导，带来持久静音的踩踏体验。
一体化轴心结构增强刚性，大幅减少踩踏形变，动力传递效率提升高达15%。标准螺纹设计让安装更便捷，双唇密封圈长期防护泥尘与雨水侵蚀，维护更省心。
全球数万名骑行爱好者真实好评认证，这款中轴已成为追求稳定性和响应速度用户的首选升级件。售价不足89美元，性价比出众，是每位进阶骑手的明智之选。立即更换你的曲柄轴承中轴，开启丝滑骑行新境界吧！
