WTB continues to grow their Road Plus and MTB Plus tire options, the latest being the ByWay 650b x 47, which gives you a bit more side knobbage for enhanced cornering traction on the loose gravel. For mountain bikes, the Bridger adds a TCS Tough casing option to improve support and cut resistance. More Sea Otter Classic 2017 tech coverage all over Bikerumor.com!