Prestacycle UniBlock PRO Gravel Cassette - 11-Speed For HG 11 Freehub 11-40 Silver Width (IN)-3.2 5mm Teeth 40 Connectivity ANT+

5mm Teeth 40 Connectivity ANT+ BT LE Crank Spindle Diameter 28

And with the added bonus of keeping the bike in its optimal condition at all times

}SRAM X5 Rear Derailleur - 9 Speed Medium Cage Black

6mm Front Derail - Wheel Size 29" Dropout 12 x 148mm Color Gray

Narrow profile improves aerodynamics and greatly reduces pannier swing

Prestacycle UniBlock PRO Gravel Cassette - 11-Speed For HG 11 Freehub 11-40 Silver Width (IN)-3.2 5mm Teeth 40 Connectivity ANT+Prestacycle UniBlock Cassettes are a single piece unit exquisitely machined from a solid block of cold forged Chrome Molybdenum alloy steel then heat treated tumble finished and electroplated for added durability and low friction operation. The 2 largest cogs on the 11 40 and 11 42 HG11 cassettes are crafted with one piece of high quality 7075 aluminum. Single block design allows Prestacycle to remove more unnecessary material making cassettes