• O.S. R5 Glow Plug Designed for high nitro fuels. (25% +)

• Increased durability at high RPM.

• Durability under extreme temperatures.

• Allows for "leaner" needle settings for higher power and quicker throttle response.

• This plug is most suited for 1/8 scale, .21 Nitro-powered on-road racing.

   OS R5專為 使用25%以上燃油 的引擎設計  能在非常高轉速 高工作溫度下 維持耐用度

    它容許較薄的油針設定 來獲得較大的馬力輸出 增進油門的快速反應