<!--ProdInc[300197440]/Mall:[backcountry_US]-->The introduction of Zipp’s new Service Course line is a welcomed bit of relief from the black hole-esque dream-state we’ve been in with cycling’s carbon era. The Service Course B2 Seatpost, in Zipp’s new silver-finish, throws back to the classic, exposed steel and aluminum that soared to some of the greatest victories in the golden age of cycling. Designed with zero and 20mm offset positions, the Service Course B2 is ready for on and off-road miles and the two-bolt adjustability makes install and fine-tuning easy and convenient. <h3>Details</h3> Brilliant new silver-finish for Zipp''s trusted Service Course line Stand out from the carbon-crowd on the lunch rides Proven performance and durability for extended use Offset position available for ideal fitting Item #ZIPZ056 <h3>Tech Specs</h3> Material : Al-6061 Diameter : 27.2, 31.6mm Length : 350mm Offset : 0, 20mm Claimed Weight : [31.6 x 350mm, 0mm setback] 8.9oz (252g) Manufacturer Warranty : lifetime