سینی بیضی طبق کوهستان Rotor Q-Rings QX1 MTB Chainring 4-arm 76mm 1×11-speed Narrow-Wide 30T
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Description of Rotor Q-Rings QX1 MTB Chainring 4-arm 76mm 1×11-speed Narrow-Wide
The oval Rotor XC1 MTB QX1-Rings increase your power by emulating a Rotor System crankset in the power stroke and by minimizing the intensity of the “dead spot” zones. By extending the time you spend in the power stroke (where 90% of all power is produced) and smoothly accelerating the legs through the critically weak “dead spots”. The QX1 chain ring is with a bolt circle diameter of 76mm specially designed for the REX 1.1 and REX 2.1. cranks.
The QX-Ring design provides smooth and uniform pedaling without sudden accelerations or shifting problems. It increase and decrease the gear ratio throughout each pedal rotation providing a lower gear ratio at the dead spots which improves your knee comfort.
The patented Rotor OCP system (Optimized Chainring Position) enables you to choose the angle where you obtain the maximum benefit and comfort, customized to your pedaling style.
QX1-Rings are made of 7075 T6 aluminium. The hard-anodized surface offers a nice looking finish with high durability.
The QX1 chain rings are for 11 speed chains, and hold the chain save due to the special teeth design. So there is no more the need of a special chain guide.
The QX1 chain ring just fits SRAM and Specialized cranks with a special Rotor Spider