FSA SL-K Tandem Rear 30 /39/52T 172.5mm 68/73 Crankset/BB

FSA (Full Speed Ahead) SL-K MegaExo Tandem Crank/Bottom Bracket Sets for Shimano and SRAM 10-speed drive terrains. Shimano and SRAM 10-speed-compatible. Two bottom bracket spacers allow for adjustable chainline.