A replacement rear derailleur hanger needs to match the bicycle it is intended for, so a near-identical pair can make the decision feel less clear than it should. Here, both black hangers are specified for the Scott #277544 Addict RC 2020 SC-R-SW1-S standard-mount dropout and use aluminum alloy. The clearest distinction is the listed price: choose the lower-priced version unless the wording of the 1pcs Black title is the specific match you want.
Quick verdict
Pick Cycling Outdoor Sports Rear Mech Hanger Rear Hanger About 40g Accessories for the lower listed price. It carries the same black color, bike rear derailleur hanger part type, aluminum-alloy construction, and about-40g weight stated for the other choice.
Cycling Outdoor Sports Rear Mech Hanger Rear Hanger 1pcs Accessories Black is the alternative for shoppers who prefer its more explicit title wording. Its listed price is $1.38 higher, while the stated core specifications align with the About 40g version.
At-a-glance comparison
| Detail | Rear Mech Hanger About 40g | Rear Mech Hanger 1pcs Black |
|---|---|---|
| Listed price | USD 17.45 | USD 18.83 |
| Color | Black | Black |
| Part type | Bike rear derailleur hanger | Bike rear derailleur hanger |
| Material | Aluminum alloy | Aluminum alloy |
| Stated weight | About 40g | About 40g |
Where each rear hanger fits best
The About 40g Accessories version is the straightforward pick when the named Scott #277544 Addict RC 2020 compatibility is the relevant match and price is the deciding factor. Its lower listed price is the meaningful practical advantage in this comparison.
The 1pcs Accessories Black version fits a shopper who wants the title to explicitly include both "1pcs" and "Black." It otherwise shares the same stated black aluminum-alloy, about-40g rear-hanger specifications, so that wording-not a stated functional distinction-is its clearest reason to choose it.
Product notes
Rear Mech Hanger About 40g
Cycling Outdoor Sports Rear Mech Hanger Rear Hanger About 40g Accessories is a black aluminum-alloy bike rear derailleur hanger specified for the Scott #277544 Addict RC 2020 SC-R-SW1-S standard-mount dropout. The stated weight is about 40g, and the package includes one bike rear derailleur hanger. Choose this version when that Scott fitment applies and you want the lower of the two listed prices, USD 17.45. Its limitation is that the title is less explicit about the single-piece count than the competing title, even though the package contents name one hanger. Shoppers focused on the core combination of black color, aluminum alloy, and the named Scott application have a direct, lower-priced choice here.
Rear Mech Hanger 1pcs Black
Cycling Outdoor Sports Rear Mech Hanger Rear Hanger 1pcs Accessories Black presents the same rear-hanger format in black aluminum alloy, with a stated weight of about 40g. It is also specified for the Scott #277544 Addict RC 2020 SC-R-SW1-S standard-mount dropout and includes one bike rear derailleur hanger. The reason to select it is simple: its title directly calls out "1pcs" and "Black," which may suit shoppers matching those words to an existing reference. The limitation is its USD 18.83 listed price, which is higher than the About 40g version despite the shared stated material, color, part type, and Scott application. It is a wording-led choice rather than a specification-led upgrade.
Final choice by use case
Choose the Rear Mech Hanger About 40g Accessories if you want the lower listed price alongside the stated Scott #277544 Addict RC 2020 compatibility, black finish, and aluminum-alloy construction. Choose the Rear Mech Hanger 1pcs Accessories Black if the explicit "1pcs" and "Black" title wording is more useful for your reference. For most shoppers comparing the two on their stated specifications, the About 40g version is the clearer pick.
