The new Shimano ULTEGRA R8150 12-speed is the fastest and most precise derailleur on the market in a more accessible version

With the fastest and most precise derailleur on the market, the new ULTEGRA R8150 12-speed is more versatile than ever, thanks to a single cage length option compatible with 28-34T sprockets. The compact design includes an integrated wireless unit, a charger, and a switch.

Features

• Model: RD-R8150
• Series: ULTEGRA R8100 Series
• Actual weight: 260 g
• Total capacity: 39T
• Fluorine-coated bushings: 4
• Max sprocket: 34T
• Min sprocket: 28T
• Max front difference: 16T
• Pulley teeth: 11
• 2X12V

Technologies

E-TUBE Technology
E-TUBE is Shimano's "service" that uses websites or apps to maximize the joy of cycling by connecting riders, bikes, and Shimano.

Shimano Shadow RD
The derailleur with the new SHIMANO SHADOW RD mechanism is designed for a more aggressive riding style. Its low-profile design offers numerous advantages. Thanks to the low profile and unique tensioning structure, the derailleur does not contact the chain on very rough terrain. The result is highly efficient and very quiet operation.

Direct Mount Rear Derailleur
Rear wheels are easier to remove with a mounting option for SHIMANO SHADOW RD and SHIMANO SHADOW RD+ derailleurs. The direct mount is designed for a wide range of modern frames with large-section chainstays, especially mountain bikes with thru-axle dropouts. High flexibility regarding frame design.

The product may be shipped in aftermarket box or OEM packaging depending on supply