99-9976- Speedo Drive 2:1 3/4"

99-9976- Speedo Drive 2:1 3/4"

Speedometer Gearbox 2:1. 

To fit AJS/Matchless heavyweight twins & singles (hole may require reaming).

BSA C15/B25/B44, all years.

Norton Dominator & ES2.

Triumph 3TA/5TA, T100 1964-67, T120/TR6 1964-66.
This gearbox is brand new production and has been carefully hardened to slightly exceed the OEM specifications for increased longevity.

For models fitted with Chronometric type speedo's pre 1966.
Centre Hole size : 3/4"
Ratio 2:1
Smith's No : BG5330/287

OEM: 99-9976
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