Short Description: Ensure the structural integrity of your engine with this high-strength flywheel fastening assembly. Precision-engineered for maximum reliability, this bolt and lock washer set is essential for keeping your flywheel securely seated and your engine running smoothly.

Technical Specifications:

• Compatibility: Dnepr MT-11 (Model KM3-8.155.6 and compatible series)
• Manufacturer Code / SKU: 7201228, 7201227
• Part Type: Engine / Crank Gear

Purpose and Role in the Motorcycle (based on the original manual):
The flywheel bolt is one of the most critical fasteners in the Dnepr MT-11 engine. Its primary function is to secure the flywheel to the tapered portion of the rear end of the crankshaft. Because the flywheel is a heavy rotating mass, it is subject to immense centrifugal forces and vibrations. This bolt, working in conjunction with the lock washer, creates the necessary clamping force to prevent the flywheel from slipping on its taper. According to the technical manual, this bolt requires an exceptionally high tightening torque of 25–28 kgf·m, underscoring the need for a high-grade, durable fastener. Signs that this assembly requires attention include unusual vibrations from the crankcase or evidence of the flywheel shifting, which can lead to catastrophic engine failure if not addressed immediately.

Benefits of Buying:

• Exact Technical Fit: Manufactured to meet the strict specifications of the MT-11 crankshaft taper, ensuring a secure, wobble-free fit.
• High-Tensile Strength: Built to withstand the extreme tightening torque (up to 28 kgf·m) required by the factory manual without stripping or stretching.
• Enhanced Vibration Resistance: The included lock washer is designed to prevent spontaneous unscrewing, providing peace of mind during long-distance rides and heavy-duty operation.