| Accessories | Bicycles | Parts | Specials | Tools | View Cart |
|---|
| This is the size used on most high quality bicycles manufactured before the late 1990s. See also Sheldon Brown's Headset Crib Sheet ISO Standard Dimensions: | |||||
|---|---|---|---|---|---|
| Cup outside diameter | Crown race inside diameter | Thread size | Stem diameter | ||
| 30.2 mm | 26.4 | 1" x 24 tpi | 7/8" / 22.2 mm | ||
Very nice quality 1" threaded headset.
Over-sized sealed bearings Alloy construction The fork crown race is split so it slides on without tools 42mm stack height 26.4 (ISO) crown race
Excellent value in an alloy headset with sealed cartridge bearings.CNC machined 6061-T6 aluminum alloy cups. Silver.
Comes with both 26.4mm and 27.0mm crown races.
Cup Diameter: 30.2mm Stack Height: 42.5mm Weight: 110 grams
Excellent value in a steel headset, using 5/32" ball bearings.Stack height: 33.4 mm Weight: 149 grams
| For Threaded Steerers | |||||
|---|---|---|---|---|---|
| 1 inch ISO | 1 inch J.I.S. | 1 inch B.M.X. | 1 1/8 inch Threaded | 1 1/4 inch Threaded | French thread |
| Road bikes older mtbs | Old Japanese size | BMX, Cruisers Old MTBs | Newer mtbs | Rare | Older French bicycles |
| For Threadless Steerers ("Aheadset," et. al.) | ||
|---|---|---|
| 1 inch Threadless | 1 1/8 inch Threadless | 1 1/4 inch Threadless |
| Some mtbs | Most Newer mtbs | Newer mtbs |
