BRISK AR12YS Silver Racing Spark Plugs

BRISK Silver AR12YS – Premium Racing Spark Plug

Silver-Core • Lower Firing Voltage • Sharper Throttle • Smoother Idle

⚡ High Conductivity  |   ❄️ Fast Cold Starts   |   🛠️ OE-size Direct Fit*

Why AR12YS?

• ⚡ Lower Required Voltage – Silver has the highest electrical conductivity of any plug material, so the coil works easier and misfires drop at high RPM/load.
• 🚀 Crisper Throttle & Better Combustion – Clean, stable ignition improves burn speed and response; riders often feel a smoother mid-range and stronger roll-on.
• ❄️ Superior Cold-Start & Idle Quality – Easier kernel formation in cold, humid or high-altitude conditions.
• 🧊 Excellent Heat Transfer – Silver’s high thermal conductivity pulls heat from the tip quickly, improving knock resistance and durability under stress.
• 🔧 Drop-in Replacement – Built to OE geometry (thread, reach, seat) with projected tip for efficient flame front initiation.*
• ⛽ Optimized for Petrol  – Lower firing voltage is especially helpful on lean mixtures and performance demands.

*Always verify thread/reach/seat and heat range for your exact engine code before ordering.

Cross-Reference (Guide)

Use this table to match typical OE/aftermarket codes that share the same envelope (projected tip, M-thread, reach, flat/gasket seat) and similar heat range. Check your manual/old plug before purchasing.

*Equivalents are indicative; manufacturers use different heat scales. Confirm against the original plug code stamped on your OE plug.

Application Guide – India (Popular Examples)

AR12YS is commonly chosen where the engine calls for a projected-tip, gasket seat plug in the AR/CPR/CR envelope with a medium/medium-cold heat range. Examples below are for guidance only.

*Indicative only. Manufacturers change plugs across years/BS standards. Always verify your OE code.

Silver vs. Iridium vs. Copper – What You’ll Feel

• ⚡ Silver (AR12YS) – Lowest firing voltage, hottest spark kernel, best for throttle response, lean mixtures and high-load riding. Great on tuned/spirited use .
• 🔥 Iridium – Very long life and fine-wire tip; excellent for extended service intervals. Needs a bit more voltage than silver.
• 🔩 Copper/Nickel – Good performance and value but shorter life; voltage demand higher than silver.

Technical Specs (AR12YS)

• Center Electrode: Solid Silver Core, projected tip
• Ground Electrode: Nickel alloy with optimized geometry
• Seat Type: Flat/Gasket
• Heat Range: Brisk 12 (medium-cold, performance oriented)
• Factory Gap: 0.8–0.9 mm (tune per OEM/ECU)
• Torque: Use manufacturer spec for your engine’s thread size

Note: Thread diameter, reach and hex size vary by engine fitment in the AR family. Match to your OE plug envelope.

Install Tips

1. Work on a cold engine. Blow out plug wells. Use correct socket/hex and torque.
2. Confirm gap per ECU/tune (most modern bikes 0.8–0.9 mm). Do not damage the fine silver tip.
3. Apply a tiny amount of anti-seize only if the OEM procedure allows, and adjust torque if used.
4. After install, perform a short adaptation ride; check for coil/boot seating and DTCs.

FAQs

Will silver plugs last as long as iridium?
Generally, iridium prioritizes life; silver prioritizes spark quality and lower voltage. Many riders choose silver for performance and replace on regular intervals.

Is AR12YS safe for daily city riding?
Yes—lower firing voltage helps low-speed drivability and reduces coil stress, which is valuable in traffic and hot weather.

What if my OE heat range differs?
Match the heat range to OE for stock engines. For tuned/hard-ridden bikes, a step colder may be appropriate—consult your tuner.