How to fit a Louis Garneau visor to a Time trial cycling helmet

This is my first blog post in English, usually i write in Norwegian. I know there are allot of people wondering about how you fit a visor to your time trial helmet so here is a guide.

Louis Garneau TT Visor

Louis Garneau TT Visor from Amazon.com

This is the stock Louis Garneau visor, i think it is a pre 2009 model. The 2009 model looks a bit different but the procedure is the same. Obviously it does not fit the Giro helmet because it’s made for LG(Louis Garneau) model. It’s suppose to be screwed onto the LG helmet but to fit it to the Giro helmet you will need to do some cutting.

I test fitted the LG visor onto the helmet to check how much I should cut of. I used a bit of electrical tape to secure it to the helmet while putting some cutting marks on the visor with a DVD type pen. Actually the visor is made by the same stuff that DVDs are made of, polycarbonate.

Giro Advantage II Caisse d'Epargne edition

Giro Advantage II Caisse d'Epargne edition

My first cutting marks, i needed to cut a bit more to make it fit

To make it fit under the plastic of the Giro helmet you need to cut about 0,5cm between the foam and the outer plastic. Please cut in you helmet at your own risk. I can not guarantee that the helmet does not take any damage by doing this. A lot of pro riders has done it this way so I’m comfortable doing it when they use it in UCI Pro Tour race.

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I used a carpenters knife to cut the space between the foam and the plastic covering the helmet.

I used a normal scissor to cut the visor. Worked great.

I used a normal scissor to cut the visor. Worked great.

After i cut the space needed for the visor i pressed the visor between the foam and the plastic to make more room for the visor. Oviously the visor is thicker than the knife.

After i cut the space needed for the visor i pressed the visor between the foam and the plastic to make more room for the visor. Obviously the visor is thicker than the knife blade.

The visor needed some more cutting after test fitting it the second time

The visor needed some more cutting after test fitting it the second time

Finished! Now you can look like a Pro! I garantuee you this will shave 2 hours of a 5000 hour timetrial.

Finished! Now you can look like a Pro! I garantuee you this will shave 2 hours of a 5000 hour timetrial.

 

Links to pictures of Pro Riders with custom visors.
David Zabriskie
Alberto Contador
Christian VanDevelde

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Comments

  1. Madone 29. May, 2009

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    Cool guide! I have been looking for this!


  2. tri 3. June, 2009

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    David Miller and Christian VanDevelde looks shockingly the same. :D


  3. Marius 3. June, 2009

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    Looks like i messed up the links. Hehe :D


  4. Adam 27. March, 2011

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    Hello
    Where did you buy the visor, I was going to do the same thing with my helmet


  5. Marius 3. April, 2011

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    eBay buddy. :D


  6. Chris Stone 16. August, 2011

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    Thank you! I followed the directions and it worked perfectly!


  7. Andrew M 30. January, 2012

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    This worked and looks awesome…much appreciated!


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Marius

Etter å ha vært en tynn spiker i ungdommen og drevet alle mulige idretter så blei jeg en tjukkas i begynnelsen av 20 åra! Etter en prolaps i ryggen som resulterte med 3 mnd senge ligging tippa vekta 100kg. Det var på tide å gjøre noe! Jeg brukte sykkel som en del av opptreninga fra prolapsen og kiloene begynte raskt å falle av igjen. Meldte meg inn i Sportsklubben Rye og plutselig var sykling en stor del av livet mitt. Etter å ha vært med i bane NM i 2009 har jeg nå lyst til å ta steget opp for å prøve å ta en pallplass på 1000m. Her kan du følge treninga og alle forberedelser jeg gjør for å nå formen i 2010.



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