Promax CK-1 Carbon Crankset - 165mm 2-PC Direct Mount SRAM 3-Bolt 30mm Spindle BLK MFPN=8030819394122 }Industry Nine Tubeless Valves -

}Industry Nine Tubeless Valves - 40mm Lime Pair

Maximum diameter is that of a chainring 2t bigger than the size you order (so be sure there is adequate chainstay clearance

They are lightweight

Shifters: N/A

Promax CK-1 Carbon Crankset - 165mm 2-PC Direct Mount SRAM 3-Bolt 30mm Spindle BLK MFPN=8030819394122 }Industry Nine Tubeless Valves -CK 1 cranks are Promaxs top of the line carbon crank offering. The race ready carbon design maximizes strength and minimizes weight. The crank arms spin on a beefy 30mm spindle to increase stiffness and power transfer. These cranks offer direct mount chainring compatibility for additional weight savings or run them with a 4 bolt 104 BCD chainring adapter available separately. Premium carbon crank arms are lightweight and extremely strong 30mm premium