Banshee 10mm Supercub Crankcases – Trenched, Bored & Port Matched

🔥 Yamaha Banshee 10mm Supercub Machined Crankcases – Race-Ready Setup

These are brand new OEM Yamaha Banshee crankcases, professionally machined for +10mm Supercub builds. Trenched, bored, and top-case port matched for 521 Supercub cylinders, this is the perfect foundation for serious drag, dune, or high-output builds.

✅ Fits all Yamaha Banshees running a +10mm DM-style Supercub engine
✅ Includes Maxlock Titanium Allen Head Crankcase Stud Kit

🧰 Machining Specs:

• Trenched for +10mm Stroker Crankshaft

• Bored to Accept 78mm Big Bore Cylinder

• Top Case Ported to Match Drag-Ported 521 Supercub Cylinder

📦 Kit Includes:

• New OEM Yamaha Banshee Crankcase Set (matched pair)

• Complete Maxlock Titanium Crankcase Stud Kit

  • Titanium Grade 5

  • Allen head for easy install/removal

  • Lifetime warranty on all titanium fasteners

• OEM-style hardware compatibility

• Built for 2-stroke Yamaha Banshee engines

⚠️ Key Details:

• 6-Month Manufacturer Warranty

• Requires +10mm stroker crankshaft and Supercub-compatible top end

• Designed and prepped for 521cc+ drag/dune use

• All machining done in-house or by trusted race-prep professionals

• Crankcases are factory Yamaha, not aftermarket castings

📦 Shipping Time:
Ships within 5–7 business days. Tracking sent upon shipment.

💬 Customer Support:
Reach us Monday–Friday, 7 AM to 4 PM PST. Our store chat is live 24/7.