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Heavy-Duty Chain Breaker Tool for #420 #428 #520 #525 #530 Roller Chains
Heavy-Duty Chain Breaker Tool for #420 #428 #520 #525 #530 Roller Chains
4.8 / 5.0
(56) 56 total reviews
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Product Overview
Make chain removal and length adjustment easier with this heavy-duty chain breaker tool, designed for common powersports roller chains from #420 to #530.
Whether you are shortening a new chain, removing a damaged link, or replacing an old drive chain, this tool helps push out chain pins with better control and alignment than basic hand tools. It is suitable for motorcycles, dirt bikes, pit bikes, ATVs, go-karts, mini bikes, and other small powersports vehicles using compatible roller chain sizes.
Built from industrial-grade molybdenum steel, the tool is made to handle the high pressure required for chain pin removal while helping reduce bending, slipping, or misalignment during use. Its compact T-handle design provides steady leverage for garage repairs, routine maintenance, or trail-side chain service.
Product Compatibility
| Chain Size | Common Applications |
|---|---|
| #420 | 50cc–125cc dirt bikes, pit bikes, mini bikes, small ATVs |
| #428 | 110cc–150cc pit bikes, scooters, go-karts, small motorcycles |
| #520 | ATVs, dirt bikes, sport bikes, quads, off-road motorcycles |
| #525 | Medium to large motorcycles, ATVs, performance applications |
| #528 | Select heavy-duty powersports chain setups |
| #530 | Larger street bikes, dune buggies, heavy-duty ATVs |
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Roller Chain Breaker Tool |
| Compatible Chain Sizes | #420, #428, #520, #525, #528, #530 |
| Thimble / Pin Diameter | 4 mm / 0.15 in |
| Effective Working Length | 32 mm / 1.25 in |
| Overall Size | 125 mm x 100 mm / 4.92 in x 3.93 in |
| Material | Industrial-Grade Molybdenum Steel |
| Application | Chain pin removal / chain length adjustment |
| Fitment Type | Universal, based on chain size |
Key Features
Heavy-Duty Molybdenum Steel Construction
Made from strong molybdenum steel to help withstand the pressure needed to push out chain pins on common powersports roller chains.
Fits Common #420–#530 Roller Chains
Compatible with many chain sizes used on motorcycles, ATVs, dirt bikes, pit bikes, go-karts, mini bikes, quads, and buggies.
4 mm Precision Thimble
The 4 mm thimble helps align with the chain pin for cleaner removal and reduced risk of damaging the surrounding side plates.
T-Handle Leverage Design
The T-handle design allows controlled, even pressure when driving out chain pins, making chain maintenance easier than using improvised tools.
Compact Garage or Trail Tool
Small enough to keep in a toolbox, garage kit, trailer, or emergency maintenance bag for chain repairs and adjustments.
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Fitment FAQ
Will this part fit my specific model and year?
This chain tool is intended for Heavy-Duty Chain Breaker Tool. Key physical/spec details from the product data include Thimble (Pin) Diameter: 4mm (0.15"), Effective Working Length: 32mm (1.25"), Overall Body Size: 125mm x 100mm (4.92" x 3.93"). Use the compatibility table and product photos together before ordering.
Do I need to match the OEM part number?
Yes. If your original part has a stamped OEM or manufacturer number, match that number first before ordering. For this chain tool, also compare the chain size range, pin diameter, press/anvil style, handle clearance, and supported roller-chain type.
What models or situations does this part not fit?
Do not order this chain tool for machines outside the listed compatibility, or for units with different OEM numbers, dimensions, mounting points, connectors, or year-specific configurations. Do not rely only on the model name or engine size.
What should I check before ordering?
Before ordering, compare your original part with the photos and check the chain size range, pin diameter, press/anvil style, handle clearance, and supported roller-chain type. Recheck listed specs such as Thimble (Pin) Diameter: 4mm (0.15"), Effective Working Length: 32mm (1.25"), Overall Body Size: 125mm x 100mm (4.92" x 3.93"). If any connector, mounting point, size, or year detail is different, confirm fitment before installation.
Worked amazing on my x ring 520 chain which is pretty heavy duty had to removed four different links to get the right chain length and it went through them all smooth and easy (the important thing to remember on how to use these is to take a deemed or grinder and grind around the edge of the pin on top just alil bit then put the chain tool on and it easily pushes the pin out and it only take 5-10 seconds to grind the pin edge and it makes the job easy and the tool lasts) hope this helps
It did what it should do very well
Great tool works perfect used it to change out motorcycle chain...
Only used once so far, but was easily used and worked well.
My 15 year old son used it no problem and never did it before.