Should You Buy A Single Sided Or A Dual Sided Power Meter? | GCN Tech Clinic #AskGCNTech

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Do you need a dual sided power meter for your road bike? Should you run 32 or 28mm tubeless tyres? What's the difference between a Pro kit and a Training kit? All these questions and more answered in this weeks GCN Tech Clinic!

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Feel the Tide (Instrumental Version) - Sugar Blizz

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Do you have a burning question you want answered in the GCN Tech clinic? Leave it in the comments below using the #AskGCNTech and we'll answer it in a future episode!

gcntech
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I have had a single and never even thought about over emphasizing that side.

buzzman
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Olly still hasn't brought all the tools back from home.

dafyddgiddins
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Ollie, you are the best man! Your episodes are always so fantastic, someone who doesn’t take himself too seriously, not afraid to admit having made mistakes, yet wonderfully insightful, honest and thorough in his answers. Keep up the excellent work, love your presentations.

hmudesign
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As a strain gauge designer/manufacturer I can tell you now that there is no need for a double sided power meter unless your a professional cyclist.

simondobbins
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Thankyou very much for answering my question Ollie!

itsmark
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My powermeter on two sides told me I went from 49/51 to 39/61 over an 8 month period while my lumbar region from L3 - S1 seriously degenerated. Pretty helpful to be able to characterize what is happening and also what therapies actually work to restore order. Surely not everyone need this, but some of us benefit immensely from this.

lobuxracer
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“Good quality stuff is generally better quality” 9:45

jamesswinney
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Can you guys do a video on cheap deep section wheels versus expensive

peteesposito
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Thanks for answering my question!!! You are the best!!! I really appreciate this channel and all the information you provide.

argeelearner
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How about no-sided. Cause I'm poor

Edit: man, this episode covers almost everything I've been wondering about in the past 2 weeks! Coincidence? 🤔 Thanks GCN!

ThirteenHauntsMe
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For the di2 battery drain question. Check using the e-tube app that the wireless unit is set to communicate via ant+ only and not low energy Bluetooth. That will drain the battery really quickly if it is continuously looking for a device to connect to.

nathanielhawkins
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Di2 draining guy - I’d recommend checking that wireless unit again. My BMC Raodmachine started losing charge last year, about 6 months after fitting a new Shimano wireless unit. The shop discovered that the unit had developed a fault. I returned it and received a replacement under warranty and have not had any discharging problems since.

AlbaTech
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On the tires question, I have sciatica and bought an endurance bike for the same reasons (Canton Endurace). It came with 28c tires, but I swapped them out for 32c Specialized Roubaix tires (running tubeless). They’re much more comfortable and feel grippier on corners and climbs. I have a lot of bad/choppy roads around my house and it’s made a big difference.

joshburg
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What about all the issues surrounding inaccurate drive side power meter readings on Shimano cranksets? It's fairly well documented so I'm surprised it hasn't been mentioned here. Also, even if there is a slight physiological discrepancy between left and right it doesn't really matter; at the end of the day most people use power meters for training purposes and so the actual value is almost irrelevant, it's more about consistency. On that basis a left sided crank based power meter more than fulfils the requirements.

boffintim
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Looking at the Favero Assioma and this video reinforced my decision to go with dual sided, thanks GCN!

AOH
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Real question on power meter is how accurately do you want to measure your effort? Are you developing detailed training plans based on power? Will a 10% error in the number make a difference? Some dual sided are actually less accurate than single sided because of issues introduced by crankset asymmetries. Or you could have total power measured at the rear hub and not care about sidedness of power

ChrisCapoccia
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Thanks for answering the question in the video title first! The quality of your content is high enough that people will watch the rest anyways, I think.

markuswahl
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1:43 The look when Ollie imagines someone with an absolutely massive left leg and tries not to laugh. Brilliant.

frozenbean
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"If you accidently cut the cable, which I've done once, that could drain the battery quickly." Classic Ollie

lwittrock