Shimano SG-3C40 Nexus Sprocket (18T)
Product ID: 8757063
🔗Fits 1/8" & 3/32" chains
⚙️18T precision teeth
🛠️Compatible with 3-tab coaster brakes
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⚙️ Upgrade your ride with Shimano’s silent power boost!
The Shimano SG-3C40 Nexus Sprocket (18T) is a precision-engineered bicycle cog designed for seamless compatibility with Shimano Alfine and Nexus hubs, as well as any 3-tab coaster brake system. It supports both 1/8" and 3/32" chains, delivering smooth, quiet, and reliable drivetrain performance. Lightweight and durable, this sprocket is the perfect upgrade for cyclists seeking a high-quality, whisper-quiet ride.
| ASIN | B001GSSO1W |
| Best Sellers Rank | #400,163 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #377 in Bike Cassettes & Freewheels |
| Brand Name | SHIMANO |
| Color | silver |
| Customer Reviews | 4.6 4.6 out of 5 stars (29) |
| Date First Available | September 27, 2008 |
| Included Components | Internally Geared Hub Part |
| Item Dimensions LxWxH | 2.75 x 2.75 x 0.25 inches |
| Item Package Dimensions L x W x H | 3 x 3 x 0.1 inches |
| Item Weight | 0.01 Ounces |
| Manufacturer | Shimano |
| Model Name | Nexus & Alfine Cogs |
| Number of Items | 1 |
| Package Weight | 0.05 Pounds |
| Part Number | Y32203420 |
| Size | 18T |
| Style | Internally Geared Hub Part |
| Suggested Users | Unisex-Adult |
| Warranty Description | Limited Warranty |
E**L
quality sprocket
I bought a cruiser bike with a KT coaster brake and KT sprocket. The sprocket was warped and the shape of the teeth was primitive. It was not meshing properly with the chain and making lots of loud ugly noises. The Shimano sprocket was a perfect replacement and everything is working quietly and smoothly.
S**Y
Great
This was one of my early purchases and got me off to a good start delivery on time part perfect cannot fault it everything good, can recommend product and company.
I**N
Works great looks great
Works perfect 👍
L**G
Four Stars
good
R**.
Sure beats the 20 tooth sprocket that came on my ...
Sure beats the 20 tooth sprocket that came on my bike. I needed more gearing for flat and downhill riding.
J**L
Very good!
Very pleased with the item.
L**E
Excellent, higher ratio achieved!
Easy installation, and a perfect swap for my old cog. Moved down to the 16T version and now have some use out of the lower gears on my Nexus SG-8R31 (before they were way too easy). Now it's actually difficult to use the higher gears which was a welcome change.
M**K
Good product
As advertised.
Trustpilot
5 days ago
2 months ago