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Now simplified with a single derailleur cage length, the new 12-speed Shimano ULTEGRA R8150 rear derailleur packs our fastest, most precise shifting into a more approachable option.
Shimano Ultegra Di2 2x12sp RD-R8150 Direct Mount Rear Derailleur
Now simplified with a single derailleur cage length, the new 12-speed Shimano ULTEGRA R8150 rear derailleur packs our fastest, most precise shifting into a more approachable option.
IRDR8150F
€418.99
€293.29
Save 30%
VAT included
You save €125.70 (30%) on the manufacturer's recommended price
Price history
- Today's price
- €293.29
- Lowest price of the last 30 days
- €293.29
- Manufacturer's recommended price
- €418.99 (30% less)
The price has not been reduced in the last 30 days. The recommended price is set by the manufacturer and is shown for reference only.
FREE SHIPPING IN ITALY FROM 129,99 EUROS*
100% SECURE CHECKOUT
N.1 in Italy in the Bike and E-Bike Shops
With our fastest, most accurate shifting, the new 12-speed ULTEGRA R8150 rear derailleur is more versatile than ever thanks to a single cage length option that is compatible with 28-34T low sprockets.
FEATURES
Our fastest ever rear shifting, 58% faster than RD-R9150
Compact design includes an integrated wireless unit, charger, and switch
LED status indicator
Battery indicator
Pairing
Adjust mode, etc.
Wider range capacity
Max. low sprocket: 34T
PRODUCT SPECIFICATIONS
MODEL NO: RD-R8150
SERIES: ULTEGRA R8100 Series
Color: Series color
Average weight: 262
Remarks: w/o Bracket spec. available
Rear speeds: 12
Top-normal spring type|SHIMANO SHADOW RD: YES
Mount|Direct attachment (Conventional): YES
Mount|Direct Mount: YES
Max. front difference: 16T
Total capacity: 39T
Low sprocket|Max.: 34T
Low sprocket|Min.: 30T
Top sprocket|Max.: 14T
Top sprocket|Min.: 11T
Fluoric coated link bushings: 4
Pulley|G pulley bearing: YES
Pulley|T pulley bearing: YES
Pulley|Teeth: 11
Pulley|Sunken type pulley bolt: YES
B-axle|Hollow axle: YES
B-axle 2|Hollow axle: YES
Di2 connectivity wired|Di2 shifting: YES
Di2 connectivity wireless|Di2 shifting: YES
Di2 connectivity wireless|Bluetooth® LE custom (*1)|Adjust mode information: YES
Di2 connectivity wireless|Bluetooth® LE custom (*1)|Di2 battery levelYES
Di2 connectivity wireless|Bluetooth® LE custom (*1)|Gear positionYES
Di2 connectivity wireless|Bluetooth® LE custom (*1)|SHIMANO STEPS data items (*3)YES
Di2 connectivity wireless|Bluetooth® LE custom (*1)|Compatible with E-TUBE RIDEYES
Di2 connectivity wireless|Bluetooth® LE custom (*1)|Compatible with E-TUBE PROJECTYES
Di2 connectivity wireless|ANT private (*2)|Adjust mode informationYES
Di2 connectivity wireless|ANT private (*2)|Di2 battery levelYES
Di2 connectivity wireless|ANT private (*2)|Gear positionYES
Di2 connectivity wireless|ANT private (*2)|SHIMANO STEPS data items (*3)YES
Firmware update by E-TUBE PROJECTYES
SD50 port (pcs)0
SD300 port (pcs)1
SD50 connector (pcs)0
SD300 connector (pcs)0
LED for system statusYES
Charging port (pcs)1
Charging cableEW-EC300
IRDR8150F
Data sheet
- Speeds
- 12
- Code
- SH240924
- Compatible with
- Shimano
- Type
- Electronic
No customer reviews for the moment.
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Who it is for and how to use it
Ideal for
Shimano 12-speed setups
Designed for those looking for a Shimano rear derailleur for 12-speed groupsets, with direct mount and Di2 electronic control.
Cyclists wanting electronic shifting
Suitable for those looking for an electronic rear derailleur with wired and wireless Di2 connectivity, pairing and adjustment modes.
Light and compact builds
Suitable for those who want a 262 g rear derailleur with a compact design and wireless integration.
Use cases
Ideal
Rear derailleur for Shimano 12-speed groupset
Works with 12-speed and Shimano compatibility. It is a direct choice for installation on a Di2 electronic groupset.
12 velocità · Shimano · Di2
Very suitable
Rides with cassette up to 34D
Declared compatible with sprockets up to 34D. This helps when choosing gearing for climbs.
Pignone max 34D · Rapporti ampi · Salita
Suitable
Set-up with direct mount
The specification indicates direct-mount installation. It is useful for those looking for a rear derailleur with a specific Shimano fixing.
Attacco diretto · Cambio posteriore · Shimano
Suitable
Electronic management with integrated wireless
Integrates a wireless unit, status LED and battery indicator. It is designed for those who want electronic control of the derailleur.
Wireless · Indicatore batteria · LED
Who it is for
Road cyclist with Shimano electronic groupset
- Looks for
- A 12-speed rear derailleur with Di2, direct mount and Shimano compatibility.
- Why
- RD-R8150 combines 12-speed, wireless connectivity and direct mount in a compact 262 g format.
Frequently asked questions
What is the rear derailleur model?
The model is RD-R8150 from the ULTEGRA R8100 Serie.
How many speeds does it support?
It supports 12 speeds. It is designed for Shimano 12-speed groupsets.
What is the weight?
The stated weight is 262 g.
Is it compatible with Shimano?
Yes, the stated compatibility is Shimano. This makes it consistent with a Shimano Di2 set-up.
What type of mounting does it require?
The specification indicates direct mount and direct installation. It is therefore designed for a specific rear derailleur fixing.
Show all (6)
What is the maximum sprocket indicated?
The maximum indicated sprocket is 34D. This information guides the choice of compatible cassette.
Information prepared by the BSA team with the support of AI, based on the manufacturer's specifications.