






Product Name: RISK Bicycle Electronic Shift Lever Custom Button Spacer
Brand: RISK
Model Number: RC315
Compatibility: Specifically designed for electronic shift levers R8170 and R9270.
The RISK RC315 Electronic Shifter Button Spacer Pads are designed for road bike electronic shift levers, helping improve the feel and accessibility of the custom shift buttons on compatible Shimano Di2 shifters.
Made from lightweight polymer material using a 3D printing process, these spacer pads are compact, ultra-light, and easy to install. They are suitable for riders who want a more noticeable button surface and improved tactile feedback when using the auxiliary/custom buttons on electronic road shifters.
Each pack includes 4 spacer pads, making it convenient for both left and right shifters or spare replacement use. The pads are designed for Shimano Ultegra R8170 and Dura-Ace R9270 electronic shift levers.
Note: This product includes spacer pads only. Shifters and other accessories shown in images are not included. Due to the 3D printing process, visible layer lines or seam textures may appear; this is a normal manufacturing characteristic and does not affect use.
| Item | Details |
|---|---|
| Brand | RISK |
| Model | RC315 |
| Product Name | Electronic Shifter Button Spacer Pads |
| Material | Plastic / Polymer |
| Compatibility | Shimano Ultegra R8170 / Dura-Ace R9270 electronic shifters |
| Quantity | 4 pcs / pack |
| Color | Black |
| Size | Approx. 10 × 6 × 1 mm each |
| Net Weight | Approx. 0.2 g / 4 pcs |
| Gross Weight | Approx. 1.6 g |
| Packaging | RISK branded bag |
| Package Size | Approx. 100 × 80 × 5 mm |
Adds a slightly raised contact surface to the electronic shifter custom buttons, making them easier to locate and press while riding.
Compatible with Shimano Ultegra R8170 and Dura-Ace R9270 electronic shift levers.
Only about 0.2 g per 4 pcs, adding almost no weight to your bike setup.
Includes 4 spacer pads for complete use or spare replacement.
Made from high-polymer material using 3D printing. Layer lines or seam textures are normal and do not affect function.

All Rights Reserved