Park Tool BBT-179 Steel Bottom Bracket Tool Daisy Chains In this mid-cut GORE-TEX version

In this mid-cut GORE-TEX version of the X-ULTRA 4

and lash loops allow secure stacking or attachment to watercraft

we use 800+ fill power down (148 grams M) because it offers great insulation-to-weight and is highly packable

whether it’s a day hike or a backpacking trip

covering the same temperature range as the hot wax

Park Tool BBT-179 Steel Bottom Bracket Tool Daisy Chains In this mid-cut GORE-TEX versionConstructed from precision machined 4140 steel, the BBT 179 is a heavy duty tool for the removal and installation of select threaded bottom brackets with 12 notch tool fittings, including SRAM BSA DUB, Race Face Cinch, Rotor BSA30, and others. The BBT 179 is designed to be compatible with any bottom bracket with the corresponding tool fitting, with an extra deep body to accommodate extra wide spindles and low profile walls at the point of engagement