I'm working on a long-planned adventure ride - climbing Mauna Kea. The bike for this adventure can take up to 32 mm tires. The climb starts with 34 miles of climbing, going up over 9,000 ft, on pavement. The last 8 miles (4,500 ft) of the climb is gravel with loose sandy sections with grades kicking over 15%. My bike has great gearing for climbing a wall (33/32), but I want a tire that will give traction on soft sandy climbs.
My first pick-thought is
GravelKing SK 32mm - I know they are very popular with the gravel folks I ride with - but I don't know my 'narrow' gravel tires very well (my typical gravel bikes roll on 700x45 and 26x4).
Let me know your thoughts on 32mm tires that can ride both pavement and soft sandy climbs. Thanks!