Parts to fit Schwinn Air Dyne Crank AssembliesFirst Photo shows all available parts for reference only You only get the 1 part you order  unless you add other parts or chose multiples. Prices vary from $9.99 to $39.95 for each specific part, shipping is flat rate. You chose the specific part and quantity you want and add them to cart for total price.  Fits Schwinn Airdyne models AD3 AD4 and some Evolution Comps (see photos)Parts are in Good Used Working Condition with normal minor cosmetic used part scratches and blemishes (see photos). All parts inspected for any wear from loose wedge pins and any associated parts are always scrapped.(#1 Used Wedge Pins are from early 70's and 80's Mfg in Taiwan Airdynes, they are higher quality because they were heat treated to a higher hardness level than the current production wedge pins.)(#7 Right Eccentric Sprockets have been checked for sprocket mount joint tightness before shipping. I find about 1 in 4 used Eccentric Sprocket have worked loose and have to be scrapped)(#8 Bottom Bracket w/New Bearings, I have it currently listed in a separate listing, search my other Airdyne listings for it and more Airdyne parts. Search my listings for L&R pedal sets sold separately.$5.95 Flat rate shipping cost for parts ordered from this listing. Orders totaling under 16oz will be shipped USPS Ground Advantage, all heavier orders will ship Priority Mail.Feel free to ask question before ordering. Message a photo of your bike and I can help verify if part will fit. I HIGHLY suggest you remove ALL the bad parts off your current bike BEFORE you order to make sure you don't have a sticky wedge pin or stuck on part that get damaged during removal. These parts can be very challenging to remove sometimes.