Our 15-degree wedge solution is designed to facilitate the high-hands time trial position, increasing the forearm contact patch when 100 mm of height gain is fully utilised. Suited to both UCI legal time trial and triathlon application, our wedge solution optimises front-end ergonomics, improving comfort and aerodynamic performance.
The 15-degree wedge has been designed with UCI compliance in mind. The key rule that concerns the application of this type of product is Article 1.3.023. This rule states that a maximum of 100 mm of height gain may be used, from the cup (centr) to the upper extremity of the extension, including shifter (electronic or mechanical).
While designed to facilitate positions that comply with UCI regulations, the 15-degree wedge is no less applicable to triathlon application. The key to the success of the product is in the full utilisation of 100 mm of height gain.
The primary consideration in the successful setup of wedges is selecting the extensions that will deliver the correct height gain, over the distance you have to spare. UCI compliance makes this more of a challenge, as the length is dictated by the rules.
For performance, a low termination angle is preferred (30-degrees). However, this places the wrist in ulnar deviation and for some people, this position may become uncomfortable over time. Moving back to an extension shape closer to the traditional ski-bend (40-degrees) offers more comfort, thanks to the more neutral wrist position.
Our go-to shape is the 30-degree ski-bend extension from Ultimate Sports Engineering (USE). Where the 100 mm of height gain is required over a short distance, or where a more neutral wrist position is desirable, the 40-degree extensions are a more practical solution.
Note; the USE extensions are designed to be reversible, we suggest and all images depict, the extensions run in the reverse orientation, maximising height gain.
Another important consideration is cup placement. Moving the cup further forward on the wedge (e.g. a short frame reach) increases the stack height under the cup and the higher the extensions will need to achieve 100 mm of height gain. Make sure the cup position is dialled in, prior to the final trim of the extensions.
If you are working to UCI compliance, make sure that both length and height are measured throughout the setup process. For Shimano users, don’t forget to factor in the length of the Di2 shifter housing, as this becomes the contact point for the hand and contributes to the height gain.