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⚡ Elevate your ride with flawless internal wiring—because details matter.
The Shimano Ultegra Di2 Grommets (6mm circle) are precision-engineered rubber seals designed to secure internally routed electronic shifting wires in road bike frames. Compatible with Shimano Di2 and other electronic systems, these durable grommets ensure a clean, weather-resistant cable entry, backed by a 3-year warranty for reliable performance.
| ASIN | B005DTSCMG |
| Best Sellers Rank | #182,808 in Sports & Outdoors ( See Top 100 in Sports & Outdoors ) #82 in Bike Cables |
| Brand | SHIMANO |
| Brand Name | SHIMANO |
| Color | One Color |
| Customer Reviews | 4.4 4.4 out of 5 stars (90) |
| Date First Available | July 21, 2011 |
| EU Spare Part Availability Duration | 3 Years |
| Included Components | Electronic Shifter Extra Part |
| Item Dimensions LxWxH | 5 x 4 x 1 inches |
| Item Package Dimensions L x W x H | 3.66 x 2.6 x 0.87 inches |
| Item Weight | 0.01 Ounces |
| Manufacturer | Shimano |
| Material | Multi |
| Model Name | Di2 Frame Grommet |
| Mounting Type | frame mount |
| Number of Items | 1 |
| Package Weight | 0.01 Kilograms |
| Part Number | SH4252 |
| Rim Width | 5 Inches |
| Size | 6mm Circle |
| Sport Type | Road Cycling |
| Style | Electronic Shifter Extra Part |
| Suggested Users | Cycling |
| UPC | 689228834408 |
| Warranty Description | Limited Warranty |
J**N
Worked great. Looks clean. Good fit for my BMC.
Fit the exit hole for the rear derailleur wire on my BMC Teammachine perfectly. I am mixing brands and using this with for a Campagnolo EPS derailleur wire, and the diameter seems about right. BTW, you get four (and only four!) grommets, which seems a little stingy for ten bucks. But now I can ride with a clear conscience on a rainy day. Yay.
J**N
Exactly what I needed
Used for covering Dynamo wires in an internally routed frame. Little slit in the grommet allowed them to be easily installed. Durable Shimano grommets.
A**R
Review
Work fantastic in my Bycicles
J**K
Perfect
I only needed two. They fit perfectly.
D**H
Perfect for my titanium di2 bike build
Perfect for my titanium di2 bike build. Frame was setup for internal cabling but no grommets. These do the trick .They're very tight but that should keep the grime out of the frame.
R**N
Worked well!
Did exactly what was expected for much less.
J**C
Good
Good
B**A
Not sure why I bought these
Not sure why I bought these...I don't have a Di2 bike. I think I accidentally clicked buy but they are true shimano parts and will work great if you need this part. If you find you need some I would be happy to hook you up with mine cause I won't use them.
Trustpilot
2 weeks ago
2 weeks ago