| Also known as | T2687 |
| Diagram | Fig. 3 — GEAR CLUSTER AND TIMING COVERS · ref 70 |
| Subsystem | engine bottom |
| Listed in parts books | 1968, 1970 |
KICKSTART SPRING B44
Kickstart return spring, PN 57-2687, for the BSA B44 and Triumph 250 TR25W (1968-1970 in our Triumph records).
This is the kickstart spring, part number 57-2687, also catalogued as KSP3 or under the earlier T2687 designation. Our records tie it to the BSA B44 and to the Triumph 250 TR25W, with catalog appearances running 1968 through 1970 for the Triumph side; no BSA years are given in our books, so if you're working from a BSA parts manual, confirm the year against your own reference before ordering.
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It shows up in the gear cluster and timing cover sections of the parts books, which is where the kickstart mechanism lives. A kickstart spring's job is straightforward: it loads up when you swing the lever down and snaps the shaft back to its rest position afterward, so the mechanism is ready to go again on the next kick.
If you're not sure whether your machine takes this exact spring, bring in your old one or give us a call with your frame and engine numbers and we'll confirm before you order.
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