Achey sore in hand muscle on pinky side, like a cramp. Also, right side of wrist bone on bottom side of wrist. Moderate soreness on center of wrist and hand on bottom mostly, very mild on top. None to speak of on thumb side.
My passion is racing bicycles both on and off road. I am old and as we age, loss of flexibility creates nerve compression, throughout our bodies. Fit on a motorcycle is in some ways like that of a bicycle only bicycling is much more intense because our hands are more pressured and therefore ergonomics come more into play. I can write volumes on the subject but suffice to say that the handlebar angle of the stock bonneville places a fair amount of pressure on the ulnar nerve because of pronounced pullback which is the medial or outboard pinkie side of the hand. If you study the geometry of even a generic mountain bike it is no coincidence that virtually all have handlebars with a backsweep angle of 0-10 degrees maximum or so. This is because the greater that backsweep angle, the greater the pressure on the ulnar nerve which is critical for hand loading due to jarring riding off road. Same with moto cross motorcycles incidentally for the same reason. From years of hand abuse which includes a lot of wrenching and riding both bikes with and without motors
I have developed mild ulnar nerve damage on both my hands which is managable with stretching and strengthening. The vast majority of motorcyclists know their wrists hurt but don't understand why. You can try to change the ergo's of your motorcycle but most would benefit more on improving their bodies including addressing the back pain that many report. Ulnar nerve damage is the result of constant pressure on the palm pad of the hand. The Guyon's canal is a small annulus that runs through the outside of the pad of the hand that controlls the pinkie and ring finger. Inboard of this is the infamous carpal tunnel that controls the other fingers. What you must do to eliminate pain other than working on your riding posture and hand position on the bars is stretch your hand muscles...and strengthen for complete relief.
The following is a simple and VERY effective video which will CHANGE your motorcycling enjoyment if you are a chronic sufferer of ulnar nerve pressure which is VERY common in the sport and also for competitive cyclists as in bicycle variety. If you start SLOWLY by stretching 3 times a day...I suggest icing while watching TV as well, you will likely recovery.
http://www.youtube.com/watch?v=VmxM29Tji8o
The first time you do the hand rotation and stretching if you feel discomfort, than that is your issue.
For further perspective, google Guyon's Canal Syndrome, Ulnar Nerve and handlebar palsy.
Best of Luck and hope that helps.
PS: Below is an illustration of the great Lance Armstrong racing in the 100 mile Leadville mountain bike race that he won last year on a bike that costs as much as our bonnevilles.
If you notice his hand position and Lance in addition to his incalculable physical gifts is a genius about bike fit and more known for his road racing prowess, you will notice that his handlebars are almost straight across. This is no accident but by design. It is somewhat akin to pushing on a wall. If the bar sweeps back, then the outside of your hand is more pressurized and that is the discomfort most feel when riding a motorcycle with a pullback bar who aren't controlling their torso with core strength.
