Facebook Twitter LinkedIn Pinterest Bluesky Threads I thought it was ISO but the inner diameter is too small? by gek__co Bicycling Bike Bike Repair Biking Cycling Repair
Itchy-Position2591 on December 14, 2025 4:57 pm That’s EC30 (external bearings, 30mm Headtube diameter) – for a 1″ (25,4mm) fork. Is your fork threaded? This headset type is available as threaded and (way more rarely) as ahead type for forks without threads.
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That’s EC30 (external bearings, 30mm Headtube diameter) – for a 1″ (25,4mm) fork.
Is your fork threaded? This headset type is available as threaded and (way more rarely) as ahead type for forks without threads.