UCI rules state:

• Elbow rests must be made up of two parts (one part for each arm) and are only allowed if extensions are added ;

• The maximum width of each elbow rest is 12.5cm ;

• The maximum length of each elbow rest is 12.5cm ;

• The maximum inclination of each elbow rest (measured on the support surface of the arm) is 15 degrees ;

• The maximum dimension of the cross section of each extension is 4cm ;

• The height difference between the elbow support point (midpoint of the elbow rest) and the highest or lowest point of the extension (including accessory) must be less than 10cm.

The main part of the extension is 4.5cm. Does anyone know if they're cracking down on this?
Last edited by: cabdoctor: Feb 8, 19 13:59
It's nearly impossible to know what rules the UCI will invent and then decide to crack down on. About 5 years ago, every single base bar was measured for the 3:1 ratio, a few years after that saddle tilt was all the rage, and now this.

I will say that at my most recent UCI TT, the commissionaires only measured saddle set back and extension length and didn't seem to even notice what bars people had. I suppose it all comes down to what's the 'new rule' of the day is with the UCI:(.

Here's a guy who is in your predicament and what he's doing to fix his trek speed concept
So the UCI in their wisdom ban his basically stock and cheaply available system and force him to create an expensive and custom solution to fit within the rule created to prevent the use of expensive custom made systems.
cabdoctor wrote:
UCI rules state:

• Elbow rests must be made up of two parts (one part for each arm) and are only allowed if extensions are added ;

• The maximum width of each elbow rest is 12.5cm ;

• The maximum length of each elbow rest is 12.5cm ;

• The maximum inclination of each elbow rest (measured on the support surface of the arm) is 15 degrees ;

• The maximum dimension of the cross section of each extension is 4cm ;

• The height difference between the elbow support point (midpoint of the elbow rest) and the highest or lowest point of the extension (including accessory) must be less than 10cm.

Can anyone with knowledge reply to this, not that the other answer's where bad, I just want more confirmation..
(And...UCI sucks..)

The main part of the extension is 4.5cm. Does anyone know if they're cracking down on this?

Franz wrote:
cabdoctor wrote:
UCI rules state:

• Elbow rests must be made up of two parts (one part for each arm) and are only allowed if extensions are added ;

• The maximum width of each elbow rest is 12.5cm ;

• The maximum length of each elbow rest is 12.5cm ;

• The maximum inclination of each elbow rest (measured on the support surface of the arm) is 15 degrees ;

• The maximum dimension of the cross section of each extension is 4cm ;

• The height difference between the elbow support point (midpoint of the elbow rest) and the highest or lowest point of the extension (including accessory) must be less than 10cm.

Can anyone with knowledge reply to this, not that the other answer's where bad, I just want more confirmation..
(And...UCI sucks..)

The main part of the extension is 4.5cm. Does anyone know if they're cracking down on this?

4CM X 1.5 = 6CM

April 2019.

CLARIFICATION GUIDE OF THE UCI TECHNICAL REGULATION34The article must be understood so that the extension can be of a 4cm maximal section (width and height). On this extension, one part, the â€śelbow restâ€ť can be wider than 4cm and can go up to 12,5cm wide (projected surface). This part can be of a 12,5cm maximal length.In case when both extensions are joined by part, the dimensional limit of the joined part is increased to 1.5 times the value on the horizontal axis is 6cm. Other dimensional restrictions remain unchanged.

4cm rule X 1.5 = 6cm for the main body of the extensions.

They are legal as long as they meet the length from the bottom bracket and the distances top and bottom of the pads. I've had this verified in an email from the UCI.
Last edited by: Pell1: Apr 26, 19 16:11