Shimano Dura-Ace RD-R9250

Model No _ RD-R9250

Series _ DURA-ACE

Rear speeds _ 12

RD construction _ SHIMANO SHADOW RD _ ✔

Mount _ Direct attachment (conventional) _ ✔

Direct mount _ ✔ 

Max. front difference _ 16T

Total capacity _ 37T

Low sprocket _ Max. _ 34T

Min. _ 30T

Top sprocket _ Max. _ 11T

Min. _ 11T

Fluoric coated link bushings _ 4

Pulley _ Guide pulley bearing _ ✔

Tension pulley bearing _ ✔

Teeth _ 11

Sunken type pulley screw _ ✔

B-axle _ Hollow axle _ ✔

B-axle 2 _ Hollow axle _ ✔

Di2 connectivity wired _ Di2 shifting _ ✔

Di2 connectivity wireless _ Di2 shifting _ ✔

Bluetooth® LE custom (*1)|Adjust mode information _ ✔

Bluetooth® LE custom (*1)|Di2 battery level _ ✔

Bluetooth® LE custom (*1)|Gear position _ ✔

Bluetooth® LE custom (*1)|SHIMANO E-BIKE SYSTEMS data items (*3) _ ✔

Bluetooth® LE custom (*1)|Compatible with E-TUBE RIDE _ ✔

Bluetooth® LE custom (*1)|Compatible with E-TUBE PROJECT _ ✔

ANT private (*2)|Adjust mode information _ ✔

ANT private (*2)|Di2 battery level _ ✔

ANT private (*2)|Gear position _ ✔

ANT private (*2)|SHIMANO E-BIKE SYSTEMS data items (*3) _ ✔

Firmware update by E-TUBE PROJECT _ ✔

SD50 port (pcs) _ 0

SD300 port (pcs) _ 1

SD50 connector (pcs) _ 0

SD300 connector (pcs) _ 0

LED for system status _ ✔

Charging cable _ EW-EC300

Average weight _ 215

Remarks _ w/o Bracket spec. available

Color _ Series color

-If you are not 100% satisfied with your purchase, you can return the product and we'll refund the full cost of the item minus shipping costs or exchange the product for another one, be it similar or not.

-You can return a product for up to 30 days from the date you purchased it.

-Any product you return must be in the same condition you received it and in the original packaging. Please keep the receipt.