Xray推出40T XB9越野车用齿差。运用了可调设计，能够提高前轮的抓地力和稳定性， 让XB9操控更轻易，转向更流畅，弯道速度更高。
• Complete Active Differential™ set for XB9
• High-performance, adjustable front gear differential
• Improves speed and handling characteristics
• Special design of internal components
• Angled internal segments
• Diff gears engage on-power to increase forward traction and stability
• Makes buggy faster and easier to drive
• Benefit to drivers of all levels that want a more predictable and easy-to-drive car in all racing conditions
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