AMSOIL Synthetic Dirt Bike Transmission Fluid
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More Aggressive Clutch Feel for Separate-Sump Dirt Bikes
AMSOIL Synthetic Dirt Bike Transmission Fluid is specifically engineered to provide smooth, confident and consistent clutch engagement for predictable power delivery when riders need it most. Its low-viscosity formulation is designed to deliver more aggressive clutch feel and superior clutch performance.
It guards against gear and clutch wear, making it the best choice for professional riders and weekend warriors focused on reducing maintenance so they can spend more time on the trail or track.
Key Benefits
- More aggressive clutch feel than engine oil in the transmission
- Consistent clutch engagement that resists slipping, grabbing and fading
- Purpose-built low-viscosity formulation for separate-sump applications
- Resists mechanical shear even under heavy clutch usage
- Premium anti-wear additives extend gear and clutch life
- Helps riders earn more holeshots with faster launches
- For two- and four-stroke separate-sump dirt bikes
- Covers Honda, Yamaha, Kawasaki, Suzuki, Husqvarna and KTM
Consistent Clutch Engagement and Wear Protection
AMSOIL Synthetic Dirt Bike Transmission Fluid's superior friction-durability properties help eliminate clutch slippage, fade and chatter. It provides superior clutch engagement that resists slipping, grabbing and fading so riders can earn more holeshots with faster launches.
The synthetic base oils naturally resist mechanical shear and viscosity loss to maintain a thick protective film that helps prevent metal-to-metal contact, even under heavy clutch usage in extreme environments. Premium anti-wear additives help reduce maintenance and extend gear and clutch life.
Technical Specifications
| Property | Value |
|---|---|
| Kinematic Viscosity @ 100°C, cSt | 10.3 |
| Kinematic Viscosity @ 40°C, cSt | 65.1 |
| Viscosity Index | 144 |
| Pour Point | -40°C (-40°F) |
| Flash Point | 246°C (475°F) |
| Fire Point | 274°C (525°F) |
| Four-Ball Wear Para 1 (75°C, 1200 rpm), mm | 0.43 |
| Four-Ball Wear Para 3 (150°C, 1800 rpm), mm | 0.56 |
Industry Certifications & OEM Approvals
JASO
- MA
Applications
Use in two- and four-stroke dirt bikes that use a separate sump requiring transmission fluid with the JASO MA specification, including those made by Honda, Yamaha, Kawasaki, Suzuki, Husqvarna and KTM.
JASO MA
Change according to the vehicle manufacturer's recommendations.
Pros and Cons
Pros
- More aggressive clutch feel than engine oil in the transmission
- Consistent clutch engagement that resists slipping, grabbing and fading
- Purpose-built low-viscosity formulation for separate-sump applications
- Resists mechanical shear even under heavy clutch usage
- Premium anti-wear additives extend gear and clutch life
- Helps riders earn more holeshots with faster launches
- For two- and four-stroke separate-sump dirt bikes
- Covers Honda, Yamaha, Kawasaki, Suzuki, Husqvarna and KTM
Cons
- Premium Investment: Higher initial cost compared to conventional or "shelf-brand" synthetic oils.
- Limited Local Retail: Primarily available through authorized dealers and specialized synthetic outlets. National Synthetics is a local stocking dealer. Call 1-678-944-8816 to confirm in-stock items for same-day local pickup.
Order Through Your Independent AMSOIL Dealer
Get more aggressive clutch feel for your dirt bike. As your Independent AMSOIL Dealer, we provide expert guidance and competitive pricing on all AMSOIL products.
Independent AMSOIL Dealer #1858536
Shipping & Returns
Fast, Reliable Shipping
- Free standard ground shipping on orders of $100 ($130 in Canada) or more.
- Orders under the threshold ship for a flat $9.99 ($12.99 in Canada) freight charge.
- In-stock items typically delivered in two to three business days.
- U.S. and Canada only — no shipments to PO Boxes.
30-Day Return Policy
- Return unopened, currently marketed products within 30 days for a full refund (minus freight).
- Exchange unopened products within 90 days with no restocking fee.
- Special-order items are non-returnable.
- Returns are handled directly by AMSOIL.
Frequently Asked Questions
AMSOIL Synthetic Dirt Bike Transmission Fluid's low-viscosity formulation delivers more aggressive clutch feel than engine oil used in the transmission. It is purpose-built for the unique demands of dirt bike transmissions and wet clutches in separate-sump applications, providing superior clutch engagement for faster launches.
Many two-stroke dirt bikes and select four-stroke models (including the Honda CRF) use separate sumps for the engine and transmission. Check your owner's manual to determine if your bike uses a separate transmission fluid reservoir.
Independent AMSOIL Dealer #1858536. Product information sourced from AMSOIL. Visit AMSOIL.com for the most current product details and availability.