The Viper seat post allows optimal positioning as it is available with an offset of 0, 10, 20 or 30 mm. The correct saddle position ensures a more efficient and comfortable pedal stroke. The special saddle clamp allows for easy assembly and adjustment, both in terms of tilt and longitudinal direction, for 7 and 8 mm Rail-D. Presentation packaging, aluminum 6061 T6, 400 mm long, black sandblasted Level 5, e-bike ready according to ergotec Safety Level table, approx. 300 - 330 g Main color black Length 400.0 mm Offset 10 mm Type/kind Item Design patent seat post