TMV Flywheel Weights

TMV Flywheel Weights: Precision-Machined Mass for Off-Road Performance

When you're threading through tight woods sections, crawling up rocky trails, or looking to tame a peaky two-stroke, a flywheel weight is one of the most cost-effective tuning tools available. TMV has built a focused reputation in the powersports world by engineering flywheel weights that solve a real-world problem: adding rotational inertia without unnecessary bulk or leaky hardware.

303 Stainless Steel — More Mass, Less Space

What sets TMV flywheel weights apart from generic alternatives is the choice of material. TMV machines their weights from 303 stainless steel, a grade that is approximately 15 percent heavier than standard steel by volume. This density advantage means TMV can pack more rotating mass into a compact profile that bolts cleanly to the stock flywheel — no oversized housings, no compromised clearances. The result is a denser, tighter package that fits the way the original engineers intended.

Equally important is what TMV leaves out: there are no extra gaskets or leaking plastic spacers in the design. On off-road bikes that take a beating, eliminating potential failure points matters. For applications where the added weight requires additional clearance, select TMV weights include an SFB Racing ignition cover to ensure a proper, leak-free fit right out of the box.

Real-World Results for Dirt Bike Riders

TMV's flywheel weights are purpose-built for off-road riding styles, and that focus shows in how they perform on the trail. Riders consistently report smoother idle behavior, reduced stalling in technical terrain, and a more manageable hit from high-strung two-stroke powerplants. The added rotational inertia keeps the engine spinning through obstacles where a light flywheel would otherwise flame out — a meaningful advantage in enduro, harescrambles, and trail riding.

The lineup covers a range of popular off-road platforms, with weight options including 11 oz. and 13 oz. variants (such as part numbers 310FW5111 and 310FW5113). The 310FW5113, for example, is a well-established fitment for the Yamaha YZ250 covering model years from 2003 through the current generation — a testament to the durability and fitment accuracy TMV brings to the category.

Why Choose TMV for Flywheel Weights?

• 303 stainless steel construction — denser than standard steel for maximum mass in a minimal footprint
• No gaskets or plastic spacers — clean, hardware-minimal installation that won't leak or fail on rough terrain
• Multiple weight options — 11 oz. and 13 oz. offerings let you dial in the right amount of inertia for your riding style
• SFB Racing ignition cover included where clearance demands it, ensuring a complete, ready-to-install solution
• Broad model coverage — fits popular dirt bike platforms across multiple manufacturers and model years

Whether you're converting a motocross machine for weekend trail duty or just trying to make a snappy two-stroke more forgiving in slow-speed terrain, explore the full selection of flywheel weights and see what TMV offers for your specific application.