Odyssey Bluebird Chain - Single Speed 1/2" x 1/8" 100 Links Black 4 Pack Available in yellow and olive

Available in yellow and olive green

model HRM 200 (XS-S) description ANT+/Bluetooth heart rate chest strap

Fits any 104/64 BCD crankset (104 BCD is the middle/big position 64 is the smallest ring position)

Misc Red/Orange

Odyssey Bluebird Chain - Single Speed 1/2" x 1/8" 100 Links Black 4 Pack Available in yellow and oliveHalf links allow for a more precise fit on the wide variety of gearing and chainstay length combinations out there. The Odyssey Bluebird Half Link chain is built with proven chromoly link plates and hardened pins for greater durability. Chromoly link plates Hardened pins for greater durability 1 2 x 1 8 size Links 100 Drivetrain Speeds Single Speed 1 2" x 1 8" Color Black Half Link Chain Yes Defined Color Black Quantity 100 Links