I'm noticing this in my right wrist lately. It generally comes on about ten miles in to a ride.90% of my riding is longish trail stuff, sat down. I haven't made any changes to the contact points recently, so I'm interested in advice on what I guess is adjusting bars, saddle etc. aimed at relieving pressue in my arms. Bike is a Jam2 large & I'm 6' tall if that is useful, the only change over the stock bike is Renthal bars, 30mm rise & cut to 760mm.