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Thread: Best TT helmet

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    Junior Member Thomas47's Avatar
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    Best TT helmet

    For the individual pursuit, would it be better with a long traditional tail, a medium tail such as the kask bambino or a round sprint style helmet.
    Lots of the pro teams on the road at least are using a medium tail now, due to the riders not specialising in TT moving there heads and are therefore less aero with a longer tail. I can keep my upper-body and head very still so would a long tail be alright ? Also when out of the saddle when you do inevitably move your head would a sprint style helmet be faster even if it is only a real gain till turn 3 (250m Track).

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    Would depend on the individual. I saw a 10 Watts difference between two aero helmets in the Windtunnel. Same session was a sprint cyclist where his Casco surprisingly tested slower than a Met Stradivarius!

    I would recommend if possible testing indoors if you can - will need to borrow a powermeter, multiple helmets and solo use of an indoor velodrome... Golden Cheetah Aerolab will let you work out CdA and find which helmet suits you.
    http://climbinglama.blogspot.com.au

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    Junior Member Thomas47's Avatar
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    Thats very interesting, might try and do a road test of the helmets as I am lucky enough to own a stages power meter. I could do it on a downhill similar to those Mr. H videos on youtube.
    Mr. H Downhill: Specialized Venge vs. BMC TMR01 vs. FeltAR2 - YouTube

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    From all the data Ive seen, the Casco is not a fast helmet in the pursuit. Like, you are better off with an aero road helmet. Some of the road helmets are testing quite well, like the ugly specialized one.

    Like Dalai said there is going to be some individualization in which helmet is 'best' for you, but if you dont have the ability to test multiple pieces, I would suggest getting something like the Giro Advantage as its very cheap and if you keep your head up (tail down) its usually pretty fast. Or if you went with a fast road helmet you could use it for mass start races. Giro Attack seems to be the standard crit/mass start helmet these days.

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    Quote Originally Posted by Thomas47 View Post
    Thats very interesting, might try and do a road test of the helmets as I am lucky enough to own a stages power meter.
    Rolldown tests are worthwhile method- but not like Mr H as he is pedaling and taking a winding road. Straight stretch of road flattening out after a section descending, no traffic, no wind - take the same line down the hill, same position including feet and the furthest distance rolled is most likely the best helmet you tested for you. Ideally all tested in the same session, as differences in atmospheric conditions will impact the results...
    @gtrob. Due to the number of vents, I haven't seen good test results with the Giro Advantage... It was used by the Au Track team for a while, but with illegal mods - visor and taped vents.
    http://climbinglama.blogspot.com.au

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    Elite Rider Hermes's Avatar
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    I did aero testing at Velo Sports Center in Carson, CA. Aero Test - TAS||Aerodynamic Optimization I tested several helmets, wheels, skin suits and positions. Lots of fun, I learned a lot and I know my optimum position and equipment configuration.
    "Insanity: doing the same thing over and over again and expecting different results." Einstein

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    Junior Member Thomas47's Avatar
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    @Hermes Care to share the results ? Obviously it would be different for each individual but I guess the results are transferable. Unfortunately I can't test for 5 weeks as I recently broke my collarbone, so am looking at others for advice. Was watching wiggins do team pursuit drills at manchester today and he uses a Giro Sector adorned with the mod sticker and by the way they are looking quick, they being Clancy, Burke, Wiggins and Tennant.
    Last edited by Thomas47; 07-14-14 at 10:59 AM.

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    Elite Rider Hermes's Avatar
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    No. Two points... aero testing is a competitive advantage, the cost a barrier to entry and the results are generally not transferrable i.e results are different for different racers using the same equipment. The other and more meaningful one is that I signed an none disclosure agreement as part of the deal.

    The other technical aspect of ERO versus coast down testing, wind tunnel and other methods is that ERO measures the CdA at various points along the track. What I can say is that CdA may vary as one rides around the track. Speed does not affect the measurement but rider movement on the bike and position change do.
    "Insanity: doing the same thing over and over again and expecting different results." Einstein

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    Junior Member Thomas47's Avatar
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    Fair Enough.
    On the subject of TT helmets has anyone had any experience with the new casco helmet ?
    Casco Speedtime Helmet | Evans Cycles

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    Quote Originally Posted by Thomas47 View Post
    Obviously it would be different for each individual but I guess the results are transferable. Unfortunately I can't test for 5 weeks as I recently broke my collarbone, so am looking at others for advice.
    Definitely non-transferable. We had three people at our Wind tunnel session back in 2008; myself racing TT's to UCI rules, a triathlete and a sprint cyclist. There were interesting insights across each of us (I stayed the day whilst the others were tested to glean as much as possible) but no clear position or equipment that was right for everyone.

    I also signed a non disclosure for my session but did write up generally about the day if interested - The Climbing Lama: Monash Wind tunnel testing Review - from the vault

    Best of luck with the recovery from the collarbone break. I broke mine mid April, had it plated end of April and still off the bike at my surgeons instructions!
    http://climbinglama.blogspot.com.au

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