![](http://hayesbicycle.com/cdn/shop/files/sd37_pro_header_{width}x.jpg?v=1634319241)
Super Bubba X
The Super Bubba X utilizes the same drop in ratchet ring tech as the Super Bubba, eliminating threads for easy service and rock solid interface. However, instead of the two offset 45 tooth rings found in the Super Bubba, the X features only one 45 tooth ring. This combined with a offset six pawl freehub body results in the same high engagement of 4 degrees and shaves 55g to bring the total weight of the rear hub to 285g.
![](http://hayesbicycle.com/cdn/shop/files/Screen_Shot_2021-10-15_at_11.56.28_AM_{width}x.png?v=1634320710)
![](http://hayesbicycle.com/cdn/shop/files/Screen_Shot_2021-10-15_at_11.56.44_AM_{width}x.png?v=1634320731)
SUNringlé Tubeless Ready (STR)
![](http://hayesbicycle.com/cdn/shop/files/duroc_pro_1_{width}x.jpg?v=1634320836)
![](http://hayesbicycle.com/cdn/shop/files/duroc_pro_2_{width}x.jpg?v=1634320851)
![](http://hayesbicycle.com/cdn/shop/files/super_bubba_1_{width}x.jpg?v=1634320862)