I rode another 15.5 miles on the shorties and found it to be very efficient. I noticed a couple days later (today) that my knees started hurting a bit under the kneecap earlier in the morning. I hadn't ridden today and the pain has gone away. I'm expecting to be reminded of it next time I go on a ride, but hopefully the pain will go away after I get used to these new arms.
Ride to Piedras Blancas Motel
5 days ago