Challenge Gravine Pro Handmade TLR Tire - 700x40 Pedals Left lever controls front derailleur

Left lever controls front derailleur (3-speed)

5mm Bottom Bracket

using a full-complement ball design that packs in the maximum number of balls for up to 45% higher load capacity than standard radial bearings

Whether you're racing cyclocross or grinding gravel

A 40mm Presta valve stem suits standard alloy and lighter carbon gravel rims

Challenge Gravine Pro Handmade TLR Tire - 700x40 Pedals Left lever controls front derailleurWhere 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.