Jabal Sabir is a steep paved road with 55 switchbacks

Jabal Sabir (also called Jabal Saber) is a high mountain pass at an elevation of 2.883m (9,458ft) above the sea level, located near Ta'izz, a governorate of Yemen.

Jabal Sabir

The road over the pass is called 412 road (or Saber Road). It’s paved and offers 55 switchbacks. The climb is strong. It’s 19km long and the average percentage is 8,8% but the gradient rarely goes above 12%.
Pic: http://wikimapia.org/6825408/Jabal-Sabir#/photo/235818