Rennen Aluminum Cassette Cog Gear Size:17T GRIP-PODS (PATENT PENDING): Pressure-sensitive traction

GRIP-PODS (PATENT PENDING): Pressure-sensitive traction system featuring sticky bristle knobs encased within a recess enabling an ultra-low tread profile with traction coming alive through applied force

S-Spec tires conform better to track surfaces for buttery smooth runs

Tioga Fastr React S-Spec Tire-Folding utilize Tioga's ultra-lightweight CYLEX 120 TPI casing

Links: 98

Volcano cones

Rennen Aluminum Cassette Cog Gear Size:17T GRIP-PODS (PATENT PENDING): Pressure-sensitive tractionRennen Aluminum Cassette Cog are manufactured with 7075 T6 Aluminum, stronger than the industry usual of 6061 Aluminum. Measuring in at only 3 16" so it won't rub your hubs, Rennen Cogs are also the one of the lightest cogs on the market, with the 16T coming in at only 17 grams! Available in a wide range of sizes for various speeds, Rennen Cogs are also Shimano Spline compatible and will work with 8 & 9 speed chains. WEIGHT 13T: 0. 35oz 10g 14T: 0.