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⚙️ Upgrade your ride with the quiet power of Shimano precision!
The Shimano SG-3C40 Nexus Sprocket (18T) is a high-quality, lightweight sprocket designed for compatibility with 3-tab coaster brakes and internally geared hubs. It supports both 1/8" and 3/32" chains, ensuring versatile use across Shimano Alfine and Nexus systems. Engineered for smooth, quiet operation, this sprocket is a trusted replacement part that enhances drivetrain performance and durability.
| ASIN | B001GSSO1W |
| Best Sellers Rank | #602,383 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #511 in Bike Cassettes & Freewheels |
| Brand Name | SHIMANO |
| Color | silver |
| Customer Reviews | 4.5 4.5 out of 5 stars (28) |
| 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.
L**G
Four Stars
good
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 👍
J**L
Very good!
Very pleased with the item.
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.
L**E
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
As advertised.
Trustpilot
3 weeks ago
1 month ago