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Comments
Crank extender for a cotterpin crank? Thats all I can think of.
Looks like a linkage from a Schwinn Air-dyne that helps connect the crank-arms to the moving handlebars. Probably one of the last hold-outs for cotter pin usage.
It looks like it could be an extender, but it it would run perpendicular to the crankset. You’d have a 90 degree bend in your crankarm, I think. that might look cool.
Cottered crack from a clown bike
CRANK!
This is a Schwinn Airdyne Eccentric Arm for the Left side. Still used today on new Airdynes.
It’s an extension piece to make a cottages crank longer!
Spell checker! That should have read: it’s an extension piece to make a cottered crank longer.
It is an old Cotter pin that is designed to attach the crank to the bottom bracket spindle
Think your right! Or to get past some funky frame shape
Crankarm eccentric
Spring retainer for an old Singlespeed retention system.
airdyne eccentric crank pin
…no hands air-hanky.
Totally Airdyne! Work on these all the time! Good one, maybe post some esoteric dropouts next time.
meh, not even a real bike part!
It’s what Derric said. Excentric for a Schwinn Airdyne. Fixed many in my day’s a the bike shop.
IKEA assembly kit?… j/k
Looks like a piviot joint for an old bike? A rod driven brake part?
Answer: “This is a part a Schwinn dealer will readily know.
It is a coupling(eccentric) for the arm pivots and crank on a Schwinn Airdyne.”