motorcycle gearbox | eBay www›Search›motorcycle gearboxNorton Commando Motorcycle Gearbox/Primary large slotted plug tool. Brand New. $15. Buy It Now. Free Shipping. Vintage Honda Motorcycle Speedometer Gear Box Retainer Cover 44642-317-701 See more like this. HONDA MOTORCYCLE TACK GEAR BOX SEAL 7X14 #91207-222-000 CB,CL, Brand New. $1. Dan's Motorcycle " Gear Boxes In the motorcycle gearbox there are two shafts. In most of them, the one with the clutch on the end of it is the main shaft. The other is the countershaft and it has the countershaft sprocket on one end of it. A few have the clutch and counter sprocket on the same shaft.