Parts for Triumph, BSA & Norton·Worldwide shipping·Call the Shop: (657) 231-9003
Le Hangar 23
Shop/Category/Fig. 25 — REAR WHEEL/Driving ring - speedometer unit
Driving ring - speedometer unit
View clickable diagram
Details
Also known asWW37318
DiagramFig. 25 — REAR WHEEL · ref 31
Subsystemwheels
Listed in parts books1976–1979

Driving ring - speedometer unit

A speedometer driving ring that engages the drive gear at the wheel hub to turn the speedo cable.

PN · 37-7004

Part number 37-7004 is a speedometer driving ring, the small toothed or notched ring that engages with the speedo drive gearbox to turn the cable and get a reading on the speedometer head. The catalog places it in with the front brake and rear wheel components, which fits how these rings mount right at the wheel hub where the speedo drive gear picks up rotation off the wheel.

Read more

You'll also see this part cross-referenced as WW37318 in older listings, so if you're working from an earlier parts book or a supplier list, that's the same physical piece under a different number.

Our records show this one showing up in catalog entries from the mid to late 1970s. Because these rings live right at the wheel and take a lot of low-speed wear from the drive gear meshing against them, it's worth checking the condition of the mating gear at the same time you're replacing this.

$38.95
Pin your bike to check this part fits.

Sorry if we got something wrong here. If you think this information isn't correct, .

Related parts
Speedometer drive gearbox
PN 60-3213 · Goes with this
BackorderView
Hub - right
PN 37-7062 · Goes with this
BackorderView
Washer - speedometer drive gearbox
PN 37-7021 · Goes with this
BackorderView
HUB HALF R/H REAR 76-79
PN 37-7002 · Goes with this
BackorderView
Spacer, right bearing
PN 37-7003 · Goes with this
BackorderView
Lock ring
PN 37-4134 · Goes with this
BackorderView
Any questions about this part?

Ed is at the counter. Tell him what you're working on or what doesn't fit, and he'll take it from there with this part already on the bench.