Description
Unusual sprocket. It has 4 large protrusions involved in mounting it.
Center Hole is 7 CM mounting holes are 7.4 CM on Cener. Dirty but appears to be new. Not certain what models it might fit but here is what Google says
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The distinctive physical description of four long mounting protrusions (or tabs/ears) combined with a 530 pitch, 36-tooth pattern points directly to the iconic rear sprocket design used on vintage Honda mid-sized motorcycles from the late 1960s to the late 1970s.
On these specific models, the sprocket isn't a flat circle. Instead, the inner circumference extends into four long, stylized metal tabs with bolt holes at the ends. This design allows the sprocket to safely span over a wide, integrated hub/cush-drive assembly.
The primary models utilizing this exact layout include:
Honda 350 & 360 Twins (The Main Culprits)
If you are looking at an OEM or direct replacement vintage style sprocket (such as the standard
JTR1334.36 or classic
AFAM lines), it belongs to one of these classic Honda parallel twins:
[1, 2]
Note on dimensions: This specific "protrusion" sprocket features a
105mm Bolt Circle Diameter (PCD) with 10.5mm mounting holes.
[1]
Honda CB400F Super Sport (Four-Cylinder Variant)
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Honda CB400F Super Sport (1975–1977)
The highly collectible 400F "Four" shares a highly similar rear hub design structure to the CB360, meaning its stock 530-pitch chain setup uses the exact same four-eared mounting configuration natively.
