Shimano Altus M310
Model: Altus, M310
Color: Black
Speed: 8S, also for 7S
Teeth of freewheel: 34T max, 11T min
Weight: about 313g
Shimano Acera M360
Model: Acera M360
Speed: 8S, also for 7S
Teeth of freewheel: 42T
Weight: about 200g
Color: Black/Silver