Quick verdict
When a rear mech hanger replacement is on your cycling accessories list, the decision is whether two similarly specified parts justify different listed prices. The two prices are USD 18.89 and USD 21.01, creating a USD 2.12 spread. Both name Scott #277544 Addict RC 2020, SC-R-SW1-S Standard Mount Dropout 277544 Carbon Frame bike. Start with the 1pcs Black title for the lower listed price; the weight-led title is most useful when "About 40g" is the wording you are matching.
Compact comparison
| Rear mech hanger | Listed price | Shared points |
|---|---|---|
| 1pcs Black | USD 18.89 | New, black, aluminum alloy, Bike Rear Derailleur hanger |
| About 40g | USD 21.01 | New, black, aluminum alloy, Bike Rear Derailleur hanger |
What separates the two choices
The physical details overlap closely: each is a black aluminum-alloy bike rear derailleur hanger, and each gives an approximate weight of 40g. The practical distinction is therefore in the price and the emphasis of the title. One foregrounds a 1pcs count, while the other foregrounds approximate weight. Neither title cue changes the shared Scott #277544 and Addict RC 2020 reference.
For shoppers replacing a hanger against that named bike reference, the USD 18.89 row gives the cleaner price-led answer. For shoppers sorting a parts list or comparing notes that specifically use "About 40g," the USD 21.01 row aligns more directly with that wording.
Where each product wins
- 1pcs Black rear mech hanger: This is the lower-listed selection, making it the straightforward pick when the deciding factor is cost within this pair.
- About 40g rear mech hanger: This is the wording match for a weight-led product reference. Approximate 40g also appears with the other hanger, so treat it as a title preference rather than a separate weight specification.
Product notes
Cycling Outdoor Sports Rear Mech Hanger Rear Hanger 1pcs Accessories Black
The 1pcs Black version fits a shopper who wants the item count stated prominently in the name and wants the lower-listed selection in this head-to-head. Its package line also identifies 1 x Bike Rear Derailleur hanger, which follows the count cue in the title. The named Scott #277544, Addict RC 2020, and SC-R-SW1-S reference makes it more specific than a general-purpose hanger label. Its limitation is the single-hanger quantity: it is geared toward selecting one replacement hanger at a time rather than building a multi-hanger quantity from one item. Choose this version when the count-led title and lower price are the clearest decision factors.
Cycling Outdoor Sports Rear Mech Hanger Rear Hanger About 40g Accessories
The About 40g version makes sense when approximate-weight wording is the clearest match for the way you are organizing cycling parts. Its black aluminum-alloy rear derailleur-hanger details align with the 1pcs Black version, so it remains a closely matched alternative for the same named Scott and Addict RC 2020 reference. The limitation is in how the title communicates the item: it leads with approximate weight rather than the 1pcs wording, which is less direct for shoppers who prioritize count in their replacement-part labels. Pick this version when "About 40g" is the phrase you need to match, rather than expecting a distinct material, color, or part-type difference.
Final choice by use case
- Price-led replacement choice: Choose the 1pcs Black rear mech hanger.
- Weight-wording match: Choose the About 40g rear mech hanger.
- Scott #277544 Addict RC 2020 reference: Either selection carries that same named bike reference and shared rear-derailleur-hanger identity.
For most shoppers choosing strictly between these two rows, the 1pcs Black hanger is the more direct answer because it carries the lower listed price. The About 40g hanger is best reserved for a purchase organized around its specific title wording.
