411-HXR-5400 88cc Big Bore Kit
411-HXR-5400 88cc Big Bore Kit
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A great combination of power, reliability and easy installation makes this kit our best seller. Cylinder retains mounts for easy skid plate installation. Excellent power gains throughout the RPM range.
Features:
- BBR aluminum cylinder
- 52mm flat-top piston, rings, pin, clips
- Exclusive BBR motocross-grind
- Performance manifold and airfilter
- Complete top end gasket set
- 16mm carb kit with throttle and cable
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.

