| Also known as | W1198 |
| Diagram | Fig. 17 — FRONT WHEEL · ref 18 |
| Subsystem | wheels |
| Listed in parts books | 1960–1962, 1964–1970, 1973–1975 |
Balance weight, 1 oz. as required
A 1 oz clip-on wheel balance weight fitted as needed to true up a front wheel, PN 37-1198.
This is a 1 oz wheel balance weight, part number 37-1198, also listed under the older code W1198. It clips onto a spoke to balance the front wheel, fitted as needed rather than as a fixed quantity per wheel. The catalog shows it appearing across a long run of front wheel figures, so it's a common shop-supply item rather than something specific to one wheel type.
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You'll find this weight referenced in front wheel figures spanning several Triumph twin variants over the years, from earlier drum-brake front hubs through later types. Since the catalog lists it as fitted "as required," the number used on any given wheel depends on how the wheel balances out, not a set spec.
If you're rebuilding a front wheel and it's running rough after lacing and truing, this is the part you reach for to true up the balance. Keep a few on hand since the exact count needed varies wheel to wheel.
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