Cinch technology allows for direct mount 1X rings as well as 2X shifting systems.

EC90 SL Carbon Arms
Cinch Power Meter Compatible

2X ROAD : 53/39, 52/36, 50/34 w/ Removable Spider
2X Gravel/CX : 47/32, 46/36, 46/30 Direct Mount 2X
1X Single DM : 38T, 40T, 42T, 44T, 46T, 48T, 50T
WEIGHT: 442g 172.5mm 40T w/o BB
CHAINLINE: 1x 47mm / 2x 45mm
Q-FACTOR (with washers): 149mm
Spindle Diameter: 30mm
Lengths : 170mm, 172.5mm, 175mm
Arms come assembled with spindle. Rings and BB sold separately