• Four - 24 Tooth, #35 Sprocket (On Wheels being driven by Gearbox)
• Eight - 22 Tooth, #35 Sprocket (Four on Gearbox, Four used as 1:1 Ratio between middle wheel and front wheel)
• Two - 500EX Key Hub
• Two - 250 Sprocket Spacer (for spacing the sprockets correctly on the gearbox output shaft)
• Twenty feet - #35 Roller Chain
• Six - #35 Master Link
• Four - #35 Half Link
• Two - 1420x435 PVC Spacer
• Four - 2420x435 PVC Spacer
• Six - 3/16 Thick Nylon Spacer
• 1 bag of 50 - 10-24 x 3/4 Self-threading Screw
• Twelve - 10-32 x 1 SHCS (for attaching the two sprockets and spacer to the 500 Key Hub on the gearbox output shaft)
• Twelve - 10-32 Nylock Nut
• Net Weight: 6.6 lbs

Please refer to the .pdf layout drawing under the "Documents and Files" tab on this web page. All of the spacer locations are identified, which includes 6 of the brass spacers from the Kit Drive Chassis.