DYC Professional Chain Breaker Tool 420–530 with 2 Replaceable Cutting Pins & Hex Key, Fits 40/410/415/420/428/50/520/525/530 Roller Chain for Motorcycle/ATV/Mini Bike/Pit Bike/Dirt Bike & Go Kart

Handle chain sizing and repairs with the DYC Professional Chain Breaker Tool, purpose-built for #420–#530 roller chains. A separate-pin design with 2 replaceable cutting pins (1 installed + 1 spare) and an included hex key lets you swap pins fast and keep working. The fine-thread press provides smooth, controlled force to push pins through side plates for clean breaks and accurate length adjustments on motorcycle/ATV/mini bike/pit bike/dirt bike and go kart chains. Compatible with 40/410/415/420/428/50/520/525/530 single-strand roller chains, it’s compact enough for the trail yet sturdy for shop use—ideal for sprocket swaps, gearing changes, and routine maintenance.

• 1. Modular, Replaceable Pin System – Separate cutting-pin style with 2 replaceable pins plus hex key; swap in seconds to minimize downtime and extend tool life.
• 2. Wide 420–530 Coverage – Works on 40/410/415/420/428/50/520/525/530 single-strand roller chains for motorcycle/ATV/mini/pit/dirt bikes and go karts.
• 3. Controlled, Clean Breaks – Fine-thread drive delivers steady pressure for precise pin removal and cut-to-length accuracy during sprocket or wheelbase changes.
• 4. Trail-Ready, Shop-Strong – Compact body for tool rolls; durable construction for repeated use in the garage or at the track.
• 5. What’s Included – Chain breaker tool, 2 replaceable cutting pins (1 installed + 1 spare), hex key, and quick-start guidance for common 420–530 chains.