Why not use time trial bikes everywhere for road use?

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  • Why not use time trial bikes everywhere for road use?
  • Premier Icon jam bo
    Subscriber

    yeah. and why arent all cars like this too.

    Premier Icon convert
    Subscriber

    The comfort/view of the road ahead is compromised. The handling is not as good. They are normally geared for flat or gently rolling terrain. They don’t play nicely with others.

    lazybike
    Member

    They’re getting there….

    tonyd
    Member

    I thought everyone used them. This is a picture of me earlier commuting to work.

    franki
    Member

    Watch how many riders crash on corners on time trial bikes. The position is no good for much in the way of climbing either.

    chilled76
    Member

    So there is downsides to riding them such as the gearing/position and how they corner.

    Thanks for the sensible reponses… cheers for the usual stw sarcastic ones too gents, brightened up my Friday afternoon.

    In raceing the UCI has rules which essentialy tell you how a bike should look like what Joe Public thinks a bike should look like (tubes can’t be full aerofoils, double diamond frames, bars below the saddle, saddle behind the BB etc).

    The public then buys stuff that looks like the pro’s.

    The fastest bikes would be recumbants anyway.

    Premier Icon tonyg2003
    Subscriber

    Time trial bars and position in a 80rider road bunch. No thanks.

    Premier Icon funkrodent
    Subscriber

    At risk of repetition, they’re designed to go fast, in a straight line on relatively flat terrain, for a short period of time. They’re incredibly stiff and rigid, with little or no compliance and they force the rider into an aerodynamic position that is extremely uncomfortable. They’re also comparatively heavy, all that areodynamicing (!?) adding up to extra weight, the idea being that they usually only have to accelerate once or twice in the course of a TT, and once they’re up to speed the weight is less of an issue. So, if you want a bike that shakes you around like a bag of bones, knackers your back, climbs like a dog, accelerates like a dog and that gets blown around in cross winds (all those areodynamicy thingies don’t half catch the wind), then fill your boots..

    Edric 64
    Member

    My timetrial bike is geared highly and with close gearing .I use 55/45 and an 11/21 cassette .I dont use it on hills !

    Premier Icon crazy-legs
    Subscriber

    Can anyone explain why time trial bikes aren’t used everywhere on road?

    If they are quicker and more aerodynamic than a normal road bike then why aren’t all road bikes like it?

    They’re designed for flat out speed at the expense of comfort and practicality. The geometry is aimed more at high speed stability rather than useful things like going round corners.

    Bit like asking why all cars don’t look like Formula 1 cars…

    tinsy
    Member

    There was a long uphill TT in the Giro, no one used a TT bike for it.

    Just an example of whats been said, its horses for courses.

    Premier Icon dannybgoode
    Subscriber

    My understand is yes, recumbants if the route is flat but they’re not much good going up hills?

    On a lumpy (though not necessarily full mountain) TT stage I reckon a good TT bike would have a recumbant?

    Cheers

    Danny B

    trail_rat
    Member

    chilled , TT bikes are awful climbing , awful cornering for the most part (unless you count specially adapted triathlon bikes that seem to be a bit less severe angles)

    they are heavier and dangerous in group riding due to the brake position

    they are uncomfy they are stiff

    they are fast on flat timed rides where you sit on the rivet adn dont really care about comfort 😀

    if your ever up aberdeen way paul gies a shout – you can experiance the discomfort for your self….. i have a planet X stealth and still i ride my old jalopy OCR on the road for training I dont race in groups on the road though

    chilled76
    Member

    Can anyone explain why time trial bikes aren’t used everywhere on road?

    If they are quicker and more aerodynamic than a normal road bike then why aren’t all road bikes like it?

    no_eyed_deer
    Member

    To be honest… I always thought a TT bike would be cool as **** for commuting about on, in some sort of idealised world I have in my head – where cars don’t exist and trains run on biofuel and are driven by pandas.

    2tyred
    Member

    Commuting on a TT bike is great, suddenly EVERYONE wants to race you.

    (not so much commuting as riding it to work on days where you’ve an evening TT and no time to go home first, but still)

    khani
    Member

    areodynamicing

    😀 that’s my new word for today!

    Premier Icon MSP
    Subscriber

    The fastest bikes would be recumbants anyway.

    I bet even in the hands of a pro rider a recumbent would be last in the TdF.

    Premier Icon convert
    Subscriber

    I bet even in the hands of a pro rider a recumbent would be last in the TdF.

    In the GC, yes probably right as it would loose so much time on the mountain stages but I bet a fully faired jobbie would win the points race simply because on all the flat stages it would cruise away from them all and score numerous solo breakaway stage wins.

    Premier Icon garage-dweller
    Subscriber

    No eyed deer – Trains driven by pandas!!!!

    What did you have to drink at lunchtime? Surely they would get bamboozled by the controls.

    wobbliscott
    Member

    A recumbent would be quicker than the peloton with all the aerodynamic benefit riding in a pack brings? Those peletons really motor. I’d be surprised if a lone recumbent would be able to match the speed.

    zerocool
    Member

    Pretty unforgiving and not very comfortable

    trail_rat
    Member

    so wobbliscott hiding at about half the height and having a full fairing making for very undisturbed air …..

    ill take a bet on the recumbent….. but only if a recumbent riders on it …. a pro cyclist is no good unless hes a recumbent rider in his spare time…. so many different muscles used.

    Premier Icon convert
    Subscriber

    I think the figures are that a recumbent is about efficient as a normal rider in the middle of a peleton. That means that whilst those sheltered in the middle might be putting out the same numbers as the recumbent rider, those at the front chasing him down would not. If the recumbent could jump the peleton they would have to be very organised rotating at the front to catch him. The best bit is that any normal rider could not take much of a draft from the recumbent so any rider jumping the gap would soon drift back.

    trail_rat
    Member

    ive tried to draft a few recumbents in the past on flat sections

    the bottechia more upright was ok , plenty draft off that but the speedmachine gave Zero draft

    the fared one that passed me in holland didnt even let me get on the back the dude was just going so much faster than i was,

    tonyd
    Member

    What a brilliant conversation, recumbent versus peloton. Where do I get tickets for that?!

    How about recumbent on a track, now that would be a sight to behold surely?!

    STATO
    Member

    how long till someone ask if it would be faster if you fitted 29er wheels to the recumbent?

    🙄

    Premier Icon garage-dweller
    Subscriber

    I bought a copy of cyclist yesterday. In that was an article on whether road wheels were the right size.

    Anyone for 750r standard wheels with a bb150?

    Premier Icon crazy-legs
    Subscriber

    How about recumbent on a track, now that would be a sight to behold surely?!

    They’re too long, they don’t go round the corners very well.
    They tried it at Manchester a few times. Works on longer shallower outdoor track, they’ve had recumbent races at Herne Hill a few times.

    Had quite an argument with a rider once when he asked to do a crit race on a recumbent – no, it’s not UCI-legal, you’re not insured and 4th Cat crits are plenty dangerous enough thanks without having a recumbent in the midst. He was insistent that he’d just ride off the front but the answer was a plain and simple no.

    As to the recumbent vs TdF – I reckon the TdF would win cos they’d get on their bikes after breakfast and go. The recumbentist would still be combing the muesli out of his beard.
    Steroetypes are great aren’t they? 😉

    Premier Icon molgrips
    Subscriber

    the fared one that passed me in holland didnt even let me get on the back the dude was just going so much faster than i was

    That happened to me in Germany. Only thing was, he was on a normal road bike. I think it was either Jens Voigt or Tony Martin, that’s the only explanation I can think of.

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