Schwinn Airdyne
The Schwinn Airdyne is an older model spin bike that has handlebars that move counter to each other during workouts. The Airdyne uses two chains, one to connect the idler (free wheel hub) to the fan (tension device to give workout strength), and one to connect the idler to the wheels and pedals. The longer chain, the idler to fan, uses 92 teeth. The shorter chain, connecting the idler to the wheel is comprised of 65 to 72 teeth, depending on tension desired.
Shimano Chains
Modern spin bikes use a series of belts to connect the fans, idlers and tension devices. Chains have been replaced by rubber belts, bands and gaskets. Older, off-market brands of spin bikes use chains to connect pedals and idlers. Many aftermarket chains are available to replace older, workout chains. Shimano makes several bike chains that are compatible with older spin bikes. The Hyperglide HG5 is Shimano's budget chain, a solid choice for spin bikes as weight savings is not necessary for the stationary spin bike.
Sachs/Sedisport Chains
Sachs/Sedisport makes bicycle chains for road and mountain bikes. These chains are compatible with older style spin bikes requiring chains. The SC-30/40 is a solid choice for stationary bikes because of its low cost. Like the Shimano, the chain is heavier but because it is going on a stationary spin bike, weight savings is not needed.
Article Written By Eric Cedric
A former Alaskan of 20 years, Eric Cedric now resides in California. He's published in "Outside" and "Backpacker" and has written a book on life in small-town Alaska, "North by Southeast." Cedric was a professional mountain guide and backcountry expedition leader for 18 years. He worked in Russia, Iceland, Greece, Turkey and Belize. Cedric attended Syracuse University and is a private pilot.
