Yes. They move easily and are not the solution we all wish they were.
3m spray is better if you are looking to avoid holes
Sorry if newbie questionâŚbut what is the benefit of crumpling up your race number???
@RobertSims Basically, it reduces sailing of the number between the pins.
Also, use 8 pins and pin so the pin comes through the number twice.
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Hugs your body better. For triathletes, it helps keep it out of the way on the run.
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As it just screwing it up then flatten it back out before pinning??? Well - live and learn!
As a comment, I was with the refs at the Livermore finish of the Mt Hamilton Classic RR this past weekend, and I got an earful from the judges about the numbers. They complained bitterly about the numbers being hard to read when crumpled. It also didnât help that we had truly epic weather, and many of the racers rode through rain, snow, and even hail and sleet, so they had put on extra clothing after the climb, and didnât take off their vests when they got to the finish, so they all had to turn around and come back to tell us their numbers. But I can agree that the crumpled numbers were definitely harder to read than the non-crumpled ones.
crumbled bib number supposedly creates more surface area for wind to run over and therefore less aero.
and, letâs be real, crumbled # isnât creating a win or anything noticeable. worry more about where you place it
Thatâs oversimplifying a complex issue. If that concept were commonly true, golf balls wouldnât have dimples, and other deliberately âroughâ surfaces would cause aero problems.
The reality is that those rough surfaces are faster despite greater surface area, because of complex aerodynamics.
As such, I donât think itâs possible to make a claim one way or another without testing or CFD analysis.
+1 for Scotch Super 77
I did 3 Early Bird crit clinics and races back in February. At each of the 3, the race referee, after making sure he had everyoneâs attention, started the race instructions with the following: "New for this year* . . .
- Folding or crumpling of your race number is not allowed. You can be disqualified.
- Adhering your number to your jersey with spray adhesive and without the use of pins is now allowed."
He also gave instructions on where to place your number on your jersey.
After completing the instruction and before moving on to specific rules for the race he asked if anyone had any questions [to make the new rules clear].
*USAC
Not that I really care but, the USAC rulebook 1J7(b) still states:
(b) Riders shall place their numbers as prescribed by the Race Director or officials and in such
a way that they are visible when the rider is in a racing position. When shoulder numbers
are provided for Cyclocross, they are worn on the upper arm to be visible from the front. Hip
numbers shall be attached securely at least at the four corners and no accessory or hair may
obstruct a clear view of the number. If shoulder or frame numbers are provided, they too shall
be placed as prescribed. Numbers may not be folded, trimmed, or otherwise defaced.
3M77 is good but not perfect. Iâd pin too just to be safe.