Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
Speedway Motors Logo
America's Oldest Speed Shop ®


M&W BC-4000 Billet Birdcages

M&W BC-4000 Billet Birdcages

Click image to enlarge

Please NOTE the following about this product:

  • This item is sold as a pair.



Q & A

What's in the Box

Machined from 2024 aluminum, these cages are lightweight and durable.  Built with angled brake mounts on both sides and solid race bearings.

You may also be interested in:

Winters Performance SC2575 Forged Birdcages
(Part #8022575)
                        These Winters forged bird cages include fully greasable 28mm angle contact bearing. Integrated timing level. 
Willys Carbs WCD BC 12 Birdcage Indexing Tool, 1/2 Inch
(Part #80045012)
  • Birdcage indexing tool greatly simplifies this tedious process
  • Slip over birdcage bolts and attach angle finder
  • Gives an exact angle of the birdcage
  • It’s an invaluable tool for both racers and chassis builders
  • Angle finder sold separate
  • Choose 1/2", 5/8", or 3/4" based on birdcage bolt size