Fatboy Mini BMX Parts

Q: What if I can't find the part I need?

Contact us with your model number and a photo of the old part, and our team will help track it down.

Fatboy parts on this page are organized by model. We carry parts for the Fatboy Assault and Assault Pro mini BMX bikes, including 4.10/3.50-4 tires, 112 link bike chains, handlebar grips, a racing saddle and a chain breaker tool. Choose your model below to see the parts listed for it.

Frequently Asked Questions

Which Fatboy models do you carry parts for?

We carry parts for the Fatboy Assault and Assault Pro mini BMX bikes.

Which tires, tubes and chains fit Fatboy mini BMX bikes?

Fatboy Assault models use 4.10/3.50-4 tires, and we carry a K353 sawtooth tread tire and a matching inner tube. We also carry 112 link 1/2" x 1/8" bike chains, including a Rust Buster chain, and a mini chain breaker tool.

What if I can't find the part I need?

Why buy Fatboy parts from Monster Scooter Parts?

We've specialized in scooter and mobility parts since 2005, ship most in-stock orders the same day when ordered before 5 PM ET, hold an A+ BBB rating, are a Google Top Quality Store with over 5,000 Google reviews averaging 4.6+ stars, are rated Excellent on Trustpilot, and have over 15,000 customer reviews averaging 4.8 stars on Judge.me. Our support team is real people who can help you confirm the right part before you order.