CHRIS KING NoThreadSet EC34/EC37

CHRIS KING NoThreadSet™ EC34/EC37 is a special-order size not found in the standard Chris King lineup. Circles stocks it specifically for frames requiring a 34mm upper and 37mm lower external cup, including the BLACKCAT BICYCLES Swami configuration noted below.

This headset uses the same serviceable Chris King bearing philosophy and GripLock® retention concept as other compatible NoThreadSet models.

[SPEC]

• Upper cup: EC34
• Lower cup: EC37
• Steerer: 1-1/8" to 1-1/4" tapered
• Headtube: 34mm upper / 37mm lower

Fit reference: BLACKCAT BICYCLES Swami Frame Set / Terra Cotta / Medium.

Correct headtube preparation is important when installing a precision headset. Depending on the frame, reaming or facing may be required.