NITTO x Circles NJ-89 Girls Keirin Stem Black
We have specially ordered the NJ-89 Ahead Stem, developed for Girls Keirin, in black.
This ahead stem meets the standards of the NJS, said to be the most stringent in the world. Unlike men's Keirin, girls' Keirin allows the use of ahead stems, and the NJ-89 stem is essentially the only NJS-certified stem. Made from forged aluminum, it's highly durable, and although it's designed for girls' Keirin, it's also suitable for men. It's perfect for building a classic track bike using an ahead stem. We also recommend combining it with flat bars for a trackrocross setup.
[SPEC]
| Material: | Aluminum |
| Color: | Black |
| Extension: | 70, 80, 90, 100, 110 & 120mm |
| Angle: | 73 deg. / 17 deg. |
| Bar Clamp: | 25.4mm |
| Post Diam. : | 28.6mm |
| Post Stack Height: | 40mm |
| Accessories: | 1 inch column shim |
*There is no NJS marking.














