Cerma Motorcycle Engine Treatment | STM-3 Ceramic Protection

Cerma STM-3 Motorcycle Engine Treatment — One-Time Nano Silicon Carbide Ceramic Protection for All Motorcycles

Cerma STM-3® Motorcycle Engine Treatment is a one-time ceramic application that permanently bonds Nano Silicon Carbide (SiC) to the internal metal surfaces of your motorcycle engine. Sport bikes, cruisers, touring bikes, dirt bikes, adventure bikes, and vintage motorcycles — one treatment protects them all.

Add it to your engine oil. Ride. The SiC particles penetrate and seal within the sub-surfaces of the metal, creating a permanent ceramic matrix that reduces friction, eliminates wear, and delivers smoother, more powerful performance for the life of the engine.

✅ What Cerma STM-3 Does for Your Motorcycle

• Increases horsepower and torque — less friction means more power to the rear wheel
• Smoother, faster shifting — ceramic coating on transmission gears (integrated gearbox motorcycles)
• Reduces engine vibration and noise — smoother operation you can feel through the bars and seat
• Improves fuel economy 4.2% to 21% — tested and verified across engine types
• Reduces emissions by up to 92% — cleaner combustion from optimized metal surfaces
• Protects new engines from day one — ceramic barrier prevents break-in wear
• Revives high-mileage engines — restores compression, reduces oil consumption, quiets worn engines
• Eliminates carbon deposits — SiC prevents buildup on pistons, rings, and valves
• Prevents hydrogen embrittlement — protects metal integrity at the molecular level
• Cold start protection to -40°F — ceramic barrier protects from first crank, even in extreme cold

🔬 How STM-3 Ceramic Technology Works

Cerma STM-3® is not an oil additive. It does not coat engine parts temporarily — it permanently changes the surface structure of the metal itself.

The Nano Silicon Carbide (SiC) particles penetrate into the sub-surfaces of your engine's metal components and create a permanent Silicon Carbide ceramic matrix. SiC has a Mohs hardness of 9.5 (just below diamond) and a melting point of 2,730°C — far beyond any temperature your motorcycle engine will reach.

The result: permanently smoother, harder, more durable surfaces on cylinders, pistons, rings, bearings, cams, and transmission gears — without changing factory tolerances. Friction drops dramatically. Wear virtually stops. Power increases measurably.

Contains 100% active ingredient — no fillers, no solvents, no petroleum additives. Does not modify your oil. Safe for wet clutches, catalytic converters, O2 sensors, plastics, rubber, and all seals.

📋 How to Apply

1. Change your oil — use any motorcycle-rated oil at your next scheduled oil change
2. Add Cerma STM-3 — pour the 2oz bottle into your oil fill port
3. Ride at least 500 miles before your next oil change — this gives the SiC particles time to bond
4. Enjoy permanent protection — the ceramic matrix is now part of your engine. No reapplication needed

Compatible with conventional, synthetic, and semi-synthetic motorcycle oils. Safe for JASO MA/MA2 rated oils. Safe for wet clutches — Cerma STM-3® does not affect clutch engagement or feel.

📦 Sizing & Pricing

Product	Size	Treats	Price
Cerma STM-3 Motorcycle Treatment	2 oz	ALL motorcycle engines (single, twin, 4-cyl, 6-cyl)	$105.60

One bottle. All motorcycles. No guessing which size you need.

🏍️ Works on All Motorcycle Types

Type	Examples
Sport Bikes	Yamaha R1/R6, Honda CBR, Kawasaki ZX, Suzuki GSX-R, Ducati Panigale
Cruisers	Harley-Davidson (all models), Indian (all models), Honda Shadow, Yamaha V-Star
Touring	Harley Road Glide/Street Glide, Honda Gold Wing, BMW K1600, Indian Roadmaster
Adventure / Dual Sport	BMW GS series, KTM Adventure, Honda Africa Twin, Yamaha Ténéré
Dirt Bikes / Enduro	KTM EXC, Honda CRF, Yamaha YZ/WR, Kawasaki KX, Husqvarna
Vintage / Classic	Any air-cooled or liquid-cooled vintage motorcycle with oil-lubricated engine

📊 Proven Performance Results

Benefit	Result
Fuel Economy	4.2% – 21% improvement (tested)
Emission Reduction	Up to 92% reduction
Cold Start Protection	Tested to -40°F
Horsepower & Torque	Measurable increase from reduced friction
Compression	Restored/boosted — especially in high-mileage engines

🛡️ Cerma vs Traditional Motorcycle Additives

Feature	Cerma STM-3®	Traditional Additives
Technology	Nano Silicon Carbide (SiC)	Petroleum / PTFE / zinc additives
Application	✅ One-time (permanent)	❌ Every oil change
Survives Oil Changes	✅ Yes — bonded to metal	❌ No — drains out
Wet Clutch Safe	✅ Yes	⚠️ Many cause clutch slip
Restores Compression	✅ Yes	❌ No
Treats Engine + Transmission	✅ Yes (integrated gearbox)	⚠️ Engine only (most)

🔗 Complete Motorcycle Protection

Pair your engine treatment with Cerma fuel protection for total coverage:

• Cerma Ceramic Fuel Treatment — continuous 6-in-1 fuel system cleaning, lubrication, and ceramic protection (from $10.95)
• Cerma Synthetic Motor Oil — SiC-enhanced oil with extended change intervals

Read our guide: Best Motorcycle Engine Treatment 2026 →

❓ Frequently Asked Questions

Is Cerma safe for my wet clutch?

Yes. This is the #1 concern for motorcycle owners, and Cerma STM-3® is completely safe for wet clutches. The SiC particles bond to steel and iron engine/transmission surfaces only — they do not coat or affect the friction material on clutch plates. No clutch slip, no change in clutch feel. Tested across sport bikes, cruisers, and touring motorcycles.

Does it treat my transmission too?

Yes — on most motorcycles. Most motorcycles use an integrated engine/transmission design where the same oil lubricates both the engine and gearbox. When you add Cerma STM-3® to your engine oil, the SiC particles bond to every metal surface the oil contacts — including transmission gears, shift forks, and shift drum. This is why riders often notice smoother shifting as one of the first improvements.

Will it work on my Harley-Davidson?

Yes. Cerma STM-3® works on all Harley-Davidson engines — Twin Cam, Milwaukee-Eight, Evolution, Sportster, and V-Rod. For Harleys with separate engine and transmission oil systems, add Cerma to the engine oil. For transmission protection, consider adding Cerma Manual Transmission Treatment to the transmission case separately.

How long before I notice a difference?

Most riders notice reduced vibration and smoother engine feel within the first ride. Smoother shifting and increased power develop over the first 500–1,000 miles as the SiC particles fully bond. Ride at least 500 miles before changing your oil to allow full ceramic bonding.

Can I use it on a vintage or classic motorcycle?

Yes — and vintage motorcycles often show the most dramatic improvement. Cerma STM-3® fills micro-imperfections in worn metal surfaces with SiC ceramic, restoring compression, reducing oil consumption, and quieting engine noise. Many owners of classic bikes report that Cerma makes their engine feel tighter and more responsive than it has in years.

What type of oil should I use with Cerma?

Cerma STM-3® works with any motorcycle oil — conventional, synthetic, or semi-synthetic. Use whatever oil your motorcycle manufacturer recommends (JASO MA or MA2 rated for wet clutch bikes). The treatment bonds to metal, not oil, so your oil choice doesn't affect the ceramic protection.

Is it really a one-time treatment?

Yes. The SiC particles permanently bond to your engine's internal metal surfaces, creating a ceramic matrix within the sub-surface of the metal. This bond survives oil changes — when you drain and replace oil, the ceramic protection stays on the metal permanently. No reapplication needed.

Will it void my motorcycle warranty?

Cerma STM-3® does not modify your engine oil — it treats the metal surfaces. Under the Magnuson-Moss Warranty Act, aftermarket products cannot void a manufacturer's warranty unless the product itself causes the damage. We recommend consulting your dealer if you have specific warranty concerns.

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Backed by over 12 years of real-world data and verified performance claims. Made in the USA by Cerma Treatment (Bijou Inc.), Fort Myers, FL. Fully insured in the US and abroad.

30-day return policy. Free shipping on orders over $150. Ships to US & Canada. Questions? Call 239-344-9861 or email info@cermatreatment.com.