PROX Connecting Rod Kit for TM RACING EN 250, EN 300, MX 250, MX 300 2005-2025

Name: PROX Connecting Rod Kit for TM RACING EN 250, EN 300, MX 250, MX 300 2005-2025
Brand: PROX
SKU: 03.7305
Price: 182.9 EUR
Availability: InStock

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€182.90

Tax Included

En stock en nuestro proveedor, enviado en 2 a 5 días.

PROX connecting rod kit for TM RACING EN 250, EN 300, MX 250, MX 300 from 2005 to 2025.

The PROX 03.7305 connecting rod kit is designed for TM RACING EN 250, EN 300, MX 250, MX 300 from 2005 to 2025. The connecting rod links the piston to the crankshaft and takes the most violent loads in the engine. Its big-end bearing and crank pin wear over the hours: play at the big end is the warning sign of a failure that can wreck the whole engine.

Specifications

Brand: PROX
Manufacturer part number: 03.7305
Weight: 490 g
Engine: 2-stroke

When to replace it?

Vertical play at the big end at top dead centre.
Side play out of tolerance, signs of overheating (bluing).
Vibration and dull noise from the bottom end.

During a bottom end rebuild, at the intervals in the service manual, and without delay as soon as play appears at the big end.

Fitting tips

Replacing a connecting rod means pressing the crankshaft apart and then realigning it: with a dial indicator, you check the run-out, i.e. the deviation in rotation measured at the end of the shaft, which must stay within a few hundredths of a millimetre at most. Leave this job to a properly equipped workshop if you don't have a press and a truing stand.
Replace the crankshaft bearings and oil seals at the same time.
Check the big-end side play after assembly.
Close up the engine with a complete engine gasket kit and tighten to the manufacturer's torque.
Check the gearbox bearings, then fill up with fresh oil and fit a new spark plug.

Why PROX?

Founded in 1975 and based near Amsterdam, ProX specialises in engine and clutch wear parts for off-road bikes. The brand has most of its range made in Japan, by OEM suppliers, for quality on a par with the original parts.

Spare parts and items to plan

2-stroke oil : LIQUI MOLY 1 L 3065 · LIQUI MOLY 1 L 3063

Frequently asked questions

Can I fit the connecting rod myself?
Yes, if you have a press and a crankshaft truing stand; otherwise, an engine workshop can do it for you.

What else should I plan for?
The crankshaft bearing and seal kit, the complete engine gasket kit, the gearbox bearings if required, engine oil and a spark plug.

Compatibility

Check the exact model and year of your bike in the list below before ordering.

Reference 03.7305

In stock3 Items

Specific References

Click on your bike to see all compatible parts.

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PROX Connecting Rod Kit for TM RACING EN 250, EN 300, MX 250, MX 300 2005-2025

€182.90

Tax Included


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PROX Connecting Rod Kit for TM RACING EN 250, EN 300, MX 250, MX 300 2005-2025

Specifications

When to replace it?

Fitting tips

Why PROX?

Spare parts and items to plan

Frequently asked questions

Compatibility

PROX Connecting Rod Kit for TM RACING EN 250, EN 300, MX 250, MX 300 2005-2025