Challenge Gravine Pro Handmade TLR Tire - 700x40 Pedals eliminating the flex that causes

eliminating the flex that causes noise and accelerates uneven wear

Left lever controls front derailleur (3-speed)

0 simply does its job

a valve core remover

5mm Bottom Bracket

Challenge Gravine Pro Handmade TLR Tire - 700x40 Pedals eliminating the flex that causesWhere Does the Challenge Gravine Pro Handmade TLR Push Gravel Further? The Challenge Gravine Pro Handmade TLR was built for riders who have outgrown all around gravel tires and want something that performs on genuinely aggressive terrain. With a more aggressive tread pattern than the Gravel Grinder lineup, the Gravine is designed specifically to deliver in muddy sections and on rugged, rocky ground where traction matters more than pure rolling speed.