| Also known as | T926 |
| Diagram | Fig. 8 — GEARBOX SHAFTS AND GEARS · ref 7 |
| Subsystem | gearbox |
| Listed in parts books | 1960–1962, 1964–1965, 1967–1968 |
LAYSHAFT LOW GEAR
Layshaft low (first) gear for the Triumph unit-construction gearbox, also listed under the earlier number T926.
This is the layshaft low gear out of the gearbox, listed in the parts books under GEARBOX SHAFTS AND GEARS. It's one of the gears that rides on the layshaft and does the work of putting the bike into first, meshing with its mating gear on the mainshaft to give the low ratio.
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Owners running the older parts book will see this listed as T926 - that's just the earlier letter-prefix number for the same part before Triumph moved to the 57- numbering. Catalog appearances for this one run from 1960 into 1968, so it shows up across a run of unit-construction gearboxes from that era.
If you're rebuilding a box and pulling the shaft cluster apart, it's worth inspecting the dogs and the bore for wear before you put a new one in - a tired low gear is a common source of a gearbox that jumps out of first under load. Give us a call with your frame or engine number if you want us to confirm which box this fits before you order.
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