YAD Shimano Acera SL-M310 RapidFire Shift Lever 3x8 Speed Trigger Shifters with Inner Cables & End Caps Front speeds: 3; Rear speeds: 8, Rear shifter for 8-speed (rear) cassette setup Shimano trigger shifters, Indexed speed indicator Easy to read optical displays, RapidFire dedicated up and down shift levers Compatible with most mountain/hybrid bikes with flat handlebars Comes with the inner cable installed & 2pcs end caps (no housing)