| Also known as | 58-83952 |
| Listed in parts books | Not catalogued by year yet |
SPEEDOMETER GEAR BOX 11/16 AXLE BORE - 1.25:1 (15/12) RATIO - LF HARRIS (150 mph gauge)
Speedometer drive gearbox, 11/16 in. axle bore, 1.25:1 (15/12) ratio, for a 150 mph speedo head.
This is a speedometer drive gearbox, the small geared housing that takes rotation off the wheel and sends it up the cable to the speedo head. This listing is for the 11/16 in. axle bore version, built with a 1.25:1 (15/12) gear ratio to suit a 150 mph gauge face. It's cataloged under the Harris LF designation, and also carries the older reference number 58-83952 in some parts books.
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Getting the ratio right matters here — speedo drive gearboxes are matched to the specific gauge face they're meant to run, so a box built for a 150 mph dial won't read correctly behind a different speedo head. The 11/16 in. bore size is what determines which wheel axle it will slip over, so check that measurement against what's on the bike before ordering.
We don't have fitment history on file for this one beyond what's printed on the part itself, so if you're not sure this is the right ratio and bore combination for your gauge and axle, give us a call and we'll sort it out before you order.
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