Connecting Rod Assembly
RADO Engineering is a trusted connecting rod assembly manufacturer in Rajkot, Gujarat, delivering precision-engineered components for two-wheeler internal combustion engines. Crafted from premium OEM 8620 alloy steel, our connecting rod assemblies are designed to withstand the high-stress, high-cycle demands of modern motorcycle and scooter engines — providing OEM-level performance, dimensional accuracy, and long operational life at competitive prices.
What Is a Connecting Rod Assembly?
A connecting rod (con rod) is one of the most critical components in a two-wheeler engine. It forms the mechanical link between the piston and the crankshaft, converting the linear (updown) motion of the piston into the rotational motion that drives the wheel.
In a typical two-wheeler engine, the connecting rod endures tremendous compressive and tensile forces with every combustion cycle - This makes material quality, precision machining, and bore accuracy non-negotiable for reliable engine performance.
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Product Overview
RADO Engineering manufactures connecting rod assemblies using OEM 8620 case-hardening steel — a nickel-chromium-molybdenum alloy chosen for its exceptional toughness, surface hardness after heat treatment, and fatigue resistance under cyclic loading conditions.
Our connecting rod assemblies are manufactured to exact OEM specifications and are compatible with a wide range of popular two-wheeler models.
Key Features
Superior Material — OEM 8620 Alloy Steel
OEM 8620 is a low-carbon nickel-chromium-molybdenum steel widely used in high-stress automotive components. It offers an ideal combination of core toughness and case hardness — making it the material of choice for connecting rods in two-wheeler engines that operate under continuous fatigue loading.
High Tensile Strength
Each connecting rod assembly is engineered to deliver high tensile strength, ensuring it withstands the peak combustion pressures within the engine cylinder without deformation or failure. This extends engine life and maintains consistent power output over time.
Precision Boring of Big End & Small End
Both the big end (crankshaft side) and small end (piston pin side) bores are precision-machined to tight dimensional tolerances. Accurate bore geometry ensures proper bearing fit, eliminates side play, reduces vibration, and prevents premature wear at both ends of the rod.
Excellent Dimensional Accuracy
Every connecting rod assembly undergoes strict dimensional verification. Consistent length, straightness, twist, and weight matching ensure smooth engine operation, minimal vibration, and reliable performance across the full RPM range.
Corrosion Resistance
Surface treatments and quality-grade steel ensure resistance to oxidation and corrosion — critical for components operating in the oil-rich, high-temperature environment of a running engine.
Durable & Long Operational Life
Our connecting rod assemblies are built for durability. With proper installation and maintenance, RADO connecting rods deliver extended service life, reducing replacement frequency and lowering the total cost of ownership for end users.
Applications
RADO connecting rod assemblies are widely used in:
Motorcycles
100cc to 200cc single-cylinder engines (Hero, Bajaj, TVS, Honda compatible)
Scooters
Automatic transmission two-wheelers with internal combustion engines
Mopeds & Entry-Level Bikes
Economy segment two-wheelers requiring reliable aftermarket parts
OEM & Aftermarket Supply
For original equipment and replacement applications
Why Choose RADO Engineering?
RADO Engineering is a Rajkot-based manufacturer with deep expertise in two-wheeler engine components including connecting rods, camshafts, rocker arms, engine valves, piston kits, and valve guides.
Direct Manufacturer
No middlemen. You deal directly with the manufacturer, ensuring consistent quality and competitive pricing.
OEM 8620 Grade Material
Industry-standard alloy used by OEM manufacturers for reliability and fatigue resistance.
Precision OEM Machining
Big end and small end bores machined to tight tolerances for perfect fit and finish.
OEM-Compatible Dimensions
Engineered to match exact fitment specifications of popular two-wheeler models.
Bulk Supply Capability
We support large-volume orders for distributors, wholesalers, and auto parts retailers.
Export Experience
Supplying to markets including Sri Lanka, Nepal, Bangladesh, Philippines, and Kenya.
Quality Inspection
Each batch is subjected to dimensional and strength verification before dispatch.
Frequently Asked Questions (FAQ)
RADO connecting rods are manufactured from OEM 8620 alloy steel — a nickel-chromium-molybdenum case-hardening steel known for its high tensile strength, toughness, and superior fatigue resistance under cyclic engine loads.
Yes. Our connecting rods are precision-machined to OEM-compatible dimensions, making them suitable for both original equipment replacement and aftermarket fitment in two-wheeler engines.
The standard minimum order quantity is 500 pieces per model. For bulk and distributor orders, please contact us for volume pricing and lead times.
Yes. RADO Engineering exports to Sri Lanka, Nepal, Bangladesh, the Philippines, Kenya, and other international markets.
Share your motorcycle model name, engine CC, and year of manufacture with our team. We will confirm the correct part number and specification for your application.
Each assembly undergoes dimensional inspection of big end and small end bore diameters, rod length verification, straightness and twist checks, and surface finish inspection before packaging and dispatch.
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Ready to source precision connecting rod assemblies from a trusted manufacturer in Rajkot?
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