Shimano GRX RD-RX812 Rear DerailleurWith an integrated chain stabilizer mechanism, the SHIMANO GRX derailleur provides a quieter experience and shifting security and precision on mixed terrain. For rides on smooth surfaces, the derailleur features and ON OFF switch for the chain tensioner. The RD RX812 rear derailleur is compatible with mtb cassettes with a 42T low sprocket max. BENEFIT Silent and uninterrupted rear shifting on rough terrain FEATURE Adjustable chain stabilizer prevents

The riding characteristics are nevertheless inimitably good

Material: Body: Aluminum / Pedal axle: Chromoly steel

Clincher rims for convenient tire changes

The FC-M9120-1 uses a 52mm chain line and can be converted between 1x and 2x

3 Weight: 225 g

11-speed double

the system selects an easier gear

Shadow RD+ For optimal chain retention

1pcs shimano CN-HG701 116 links

Titanium gear QTY (pcs)        : 0

SLX BR-M675/666

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