SRAM SX Eagle Boost Crankset - 170mm 12-Speed 32t Direct Mount DUB Spindle Interface BLK A1 MFPN=8-BIT-KNIFE Includes one blade and accepts

Includes one blade and accepts any 12" (300mm) hacksaw blade

And while others might try

2-piston flat mount 20mm offset hydraulic disc brake offers excellent power and modulation

}Shimano Nexus SG-3C40 and SG-3C41 3-Speed Coaster Brake Hub Driver Unit Does not fit 3-Speed Roller Brake Hubs

SRAM SX Eagle Boost Crankset - 170mm 12-Speed 32t Direct Mount DUB Spindle Interface BLK A1 MFPN=8-BIT-KNIFE Includes one blade and acceptsSRAM SX Eagle Boost Crankset 170mm 12 Speed 32t Direct Mount DUB Spindle Interface Black A1. The SRAM SX Eagle Crankset includes Eagle platform styling and features in an entry level price point. SX Eagle cranks are compatible with all levels with SRAM Eagle drivetrain systems. Offers the same chain retention performance as seen in all higher level Eagle drivetrain cranks 32t direct mount X SYNC 2 steel chainring included Aluminum crank arms 11 12