Drop in replacement for the stock fifth gear. This Siebenrock 5th gear is 5% taller which will lower your RPM while cruising in 5th gear. Great for touring at high speeds. Does not require any other modification to the transmission. Fits all gearboxes with 17.5 degree helical gears from 04/82 on. See our 15 degree tall fifth gear for earlier models part number 23221234889R.
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