Bjōrn Probka Cork SaddleBjrns Probka saddle is a cork marvel. Topped with a natural cushioning material that demonstrates excellent dampening characteristics, the Probka smooths the road and keeps the power going to the pedals without excess flex. But it still deforms to the riders pressure points over time, adjusting uniquely to each rider. In detail, the Probkas cork top is 8mm thick, with a pressure relief channel in front. For those concerned about longevity, look to