SJ Motorcycle Engineering Speedo Gearbox 2:1 – BSA C15 B25 B44 Norton Dominator Triumph 3TA

Restoring a classic Brit bike?

This SJ Motorcycle Engineering speedo gearbox is a crucial piece.

It's a 2:1 ratio gearbox for the speedometer drive.

Fits a bunch of iconic models: BSA C15, B25, B44, Norton Dominator, and Triumph 3TA.

Part numbers: 99-9976 and 19-9205, also BG5330/287.

SJ Motorcycle Engineering is a known name in the vintage bike world.

This gear is new, ready to install.

If your speedo isn't working or you're building a bike from parts, this gets your speedometer accurate.

Classic British motorcycle restoration is all about the details—this is one you don't want to miss.

Made to original specs, bolts right up.