This is a perfect weld on style bearing hanger for racers because it is formed to fit on 1-1/4″ tube framing and has two bolt hole locations for cassette mounting.
Product Specs:
1 1/4″ Axle Bearing Hanger
Formed to fit a 1 1/4″ tube frame
Weld on style
2 position bolt hole location for cassette mounting options
(3) Bolt Holes on a 3-9/16 Bolt Circle for a Standard 1-1/4 Cassette
Dimensions: 4-15/16″ W x 5-1/8″ H x 1-7/8″ Thick.