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You already have one of the fastest wheels out there, and leg trips give a proven CdA reduction.
Getting lower isn't necessarily faster, look at TarmacExpert and Tops' positions on the bike. They don't look anything like someone like Bottrill, but they are very slippery.
Aerocoach gives you real-time analysis and Xavier is your aerodude. Much better to spend your money on that than a new disc wheel.
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Front wheel sorted - I want a new rear wheel. Lighter, faster, more wom. I've only seen @xavierdisley's company's claims on the leg trips - any independent tests? How much would they gain me during a 12 or 24hr? Would they stay attached?
I know it's not all about getting low but I'm explaining that I've found some limits and I'm aware that messing with my general position on the bike is more likely to harm than help. I'm sure there's things that can be done but I'd be worried about changing my pedaling style to get more aero. That's why arm positions are nice to test - testing them works and moving them doesn't fuck my knees or cause any number of other issues that appear when doing thousands of miles.
Topham can get his head much lower than mine. I've tried to get lower but it's prove impossible to hold over longer distances.
I think you're missing the point again. I'm not saying no to aero testing, I'm saying I want faster kit too. But it would be nice to know what the fastest kit was for me.
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"The reduction in CdA for both legs is up to ~0.004m2, with rider-rider variations. This typically translates to a ~5w or ~7sec saving over 10 miles."
Know of any handy calculators that can equate CdA reductions to speed differences? Assuming that's the uppermost benefit, how much would it gain me during a 12hr. I assume that 7sec/10mi is at 30mph and my maths isn't very good.
It's hard enough to dress for TTs without gluing shit to myself. I'll stick with faster wheels.