【UNIVERSAL COMPATIBILITY】Fits 99% of road bike cranks! Compatible with: 105 R7000, Ultegra R8000, Tiagra 4700; SRAM: Rival, Apex; BCD 110/130 bolt circles – no adapters required!
【HIGH-STRENGTH METAL】Cold forged + T6 heat treatment (HRC 85) – 3x more durable than standard 6061 chainrings. For e-bike/sprint applications!
【OPTIMIZED CHAIN GUIDE】CNC-machined shift pins and nano-grip tooth profiles guarantee 0% chain jump during shifting, reduced chain friction, and quiet operation even with 11-speed cassettes.
【PRECISION DRILLING FOR BCD 110/130】Laser-calibrated holes (±0.1mm tolerance) prevent micro-vibrations, crank play, and imbalance at over 90 km/h.