Stainless Steel BSA/Triumph Rear Wheel Spindle (Part No. 37-3980)

Also known as an axle shaft, this spindle is a direct replacement for the original, offering superior durability and corrosion resistance. Crafted from solid stainless steel bar with an integrated fixed head/bolt style design, it provides greater strength and a cleaner finish compared to alternatives with threaded heads that risk detaching during removal.

Key Features

Part Number: 37-3980 or W3980

Material: Stainless steel

Dimensions (Approximate, for Identification Purposes):

• Length under head: 9 13/16" (250 mm)
• Shaft Diameter: 5/8" (15.8 mm)
• Thread: 5/8" x 18 UNF

Note: Measurements are approximate and unfitted. Please verify compatibility with your model.

Compatibility:

This spindle will fit a wide range of BSA and Triumph twins and triples from 1971 onwards including:

BSA A65, A75, 

Triumph T120, T140, TR6, TR7, T150, T160 & X75

This spindle may fit other models but please check your part number.

 

Manufacturing: Proudly made in Cornwall, England, by CPC Engineering using precision CNC machining and high-quality stainless steel.