Challenge Gravel Grinder Pro Handmade TLR Tire - 700x40 Bars and broadly compatible with other

and broadly compatible with other Shimano road Hollowtech II cranksets including 105

The TPU/PU Coated 420D ripstop shell is fully welded for water-resistant performance

The Park Tool AWS-11 is a fold-up hex wrench set that keeps your most-used allen key sizes organized and accessible in a single compact tool

The monoblock shape is specific to single-piece caliper bodies and will not fit standard two-piece calipers

technical descents

Challenge Gravel Grinder Pro Handmade TLR Tire - 700x40 Bars and broadly compatible with otherWhy Is the Gravel Grinder Pro Handmade TLR Worth the Step Up? The Challenge Gravel Grinder Pro Handmade TLR is what happens when Challenge applies its highest construction standards to a gravel tire. A fast rolling diamond center keeps you efficient on smooth sections while aggressive shoulder knobs activate exactly when the terrain gets soft, muddy, or sketchy enough to demand them. The difference you notice immediately is the 260TPI SuperPoly