Shimano 10-45 flywheel teeth

The number of teeth is not specified, but this corresponds to a 12-speed flywheel.

The SLX M7100 are a very important group in the Shimano hierarchy. It shares the same number of cassettes as the XT and XTR, but at a more affordable price. Generally speaking, the SLX offers the same features and capabilities as the higher-end group, but is heavier and has slightly lower shift quality. 12-speed cassette available in 10-45 and 10-51t options. At the same time, a 1x system is used.

The current mainstream Shimano accessories, ordered from beginner to advanced, are as follows:

Shimano Tourney

Shimano Altus M2000

Shimano Alivio M3100

Shimano Deore M6100, M5100, M4100

Shimano SLX M7100

Shimano Deore XT M8050

Shimano Deore XT M8100

Shimano XTR M9050

Shimano XTR M9100