`- 6061 aluminum shaft, 2-bolt adjustable alloy clamp\n- Features a reversible seat clamp which allows for an additional 10mm of fore-aft saddle adjustment. 284g (27.2x350mm)\n- LINK-System clamp adapters sold separately: Vector Evo Saddles part #RC-4199, Selle Italia Monolink BTI #RC-4197