Headset Specs
| 2nut™ | weight (g) |
total stack height (mm) |
lower stack height (mm) |
cup skirt (mm) |
head tube I.D. (mm) |
base plate I.D. (mm) |
fork crown O.D. (mm) |
| 1" | 94 | 37.4 | 12.9 | 30.2 | 30.1 | 26.4 | 26.5 |
| 1"BMX | 110 | 39.1 | 13.7 | 32.8 | 32.7 | 26.4 | 26.5 |
| 1-1/8" | 110 | 38.5 | 13.7 | 34.0 | 33.9 | 30.0 | 30.1 |
| 1-1/4" | 129 | 40.0 | 14.2 | 37.0 | 36.9 | 33.0 | 33.1 |
| GripNut™ |
weight
(g) |
total stack height (mm) |
lower stack height (mm) |
cup
skirt (mm) |
head tube I.D. (mm) |
base plate I.D. (mm) |
fork crown O.D. (mm) |
| 1" | 93 | 33.0-38.0 | 12.9 | 30.2 | 30.1 | 26.4 | 26.5 |
| 1"Ti | 99 | 33.0-38.0 | 12.9 | 30.2 | 30.1 | 26.4 | 26.5 |
| 1"BMX | 107 | 34.2-39.2 | 13.7 | 32.8 | 32.7 | 26.4 | 26.5 |
| 1-1/8" | 109 | 33.9-38.9 | 13.7 | 34.0 | 33.9 | 30.0 | 30.1 |
| 1-1/4" | 128 | 35.0-40.0 | 14.2 | 37.0 | 36.9 | 33.0 | 33.1 |
| NoThreadSet™ |
weight
(g) |
total stack height (mm) |
lower stack height (mm) |
cup
skirt (mm) |
head tube I.D. (mm) |
base plate |
fork crown O.D. (mm) |
| 1" | 84 | 28.0 | 12.9 | 30.2 | 30.1 | 26.4 | 26.5 |
| 1"Ti | 88 | 28.0 | 12.9 | 30.2 | 30.1 | 26.4 | 26.5 |
| 1"BMX | 99 | 32.0 | 13.7 | 32.8 | 32.7 | 26.4 | 26.5 |
| 1-1/8" | 98 | 31.4 | 13.7 | 34.0 | 33.9 | 30.0 | 30.1 |
| 1-1/8"Ti | 102 | 31.4 | 13.7 | 34.0 | 33.9 | 30.0 | 30.1 |
| 1-1/4" | 113 | 31.0 | 14.2 | 37.0 | 36.9 | 33.0 | 33.1 |
| 1.5" | 230 | 36.0 | 14.8 | 49.7 | 49.6 | 39.7 | 39.8 |
| 1.5" Devolution | 250 | 37.3 | 14.8 | 49.7 | 49.6 | 30.0 | 30.1 |
| Devolution™ | 115 | 31.0 | 14.2 | 37.0 | 36.9 | 30.0 | 30.1 |
| SteelSet™ | 223 | 31.4 | 13.7 | 34.0 | 33.9 | 30 | 30.1 |
* Please note that the Steelset requires a deeper
bore in the frame (25.6mm or 1.01" deep) due to it's
1" long cup skirts.
