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Transmission system and method for performing a gearshift — Harley-Davidson patent US8171814B2 (2012)

PatentUS8171814B2
TypeUtility patent
Filed2007-05-11
Granted2012-05-08
InventorWilliam Wesley Martin
SystemTransmission & clutch

“A transmission system and method for operating the transmission system, where the transmission system includes a selector assembly arranged to select between gear ratios instantaneously without substantial power interruption. The selector assembly includes first and second sets of engagement…”

Full patent textDownload PDFShop transmission & clutch parts

Drawings (12 sheets)

Transmission system and method for performing a gearshift — sheet 1Transmission system and method for performing a gearshift — sheet 2Transmission system and method for performing a gearshift — sheet 3Transmission system and method for performing a gearshift — sheet 4Transmission system and method for performing a gearshift — sheet 5Transmission system and method for performing a gearshift — sheet 6Transmission system and method for performing a gearshift — sheet 7Transmission system and method for performing a gearshift — sheet 8Transmission system and method for performing a gearshift — sheet 9Transmission system and method for performing a gearshift — sheet 10Transmission system and method for performing a gearshift — sheet 11Transmission system and method for performing a gearshift — sheet 12

Parts for this system

12-6924
Clutch Release Cover Retaining Ring
$4.86
12-1317
OE Transmission Retaining Ring for Dog Ring
$5.18
14-6909
Ultima Clutch Pulley Cover Oil Seal
$5.40
12-1318
OE Transmission Countershaft End Nut
$6.00

Check fitment first — add your bike and we flag what fits.

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Drawing from the US patent record (via Google Patents). A patent shows the invention as filed, not necessarily the production part on your motorcycle — confirm fitment for your model and year. Independent aftermarket retailer, not affiliated with Harley-Davidson, Inc.