She found HOW MUCH power!? - Full Bike Fit

Laura came to us with a litany of issues, but had so much untapped power, hidden away due to a poor fit. Let's help her unlock it!

*This booking link is specifically for YouTube filmed bike fits. By booking on this link, you agree to have your bike fit filmed and share on this YouTube channel.

[marcmancycling]

She looks like shes gonna cry towards the end 😬 put it up on sale and get a proper one. Goodluck on your future bike Laura!

[richardandrewsmall]

James did a bike fit for me a couple of years ago... and I can confirm a similar experience. My original fit was quite a way off of being perfect, and James made some major changes to my position. The impact of these changes i noticed instantly in the studio. Being put back on my original bike at the end of the session was a real shock to the system!

I did an FTP test both before and after my fit and went up +45W to 305W, with around 10% less heartrate stress across the second test. Not only was it more comfortable being on my bike, I noticed a massive improvement in my endurance and power transfer. I've not looked back and would recommend James' input to anyone who rides a bike! Thanks so much!

[DanTuber]

This is why i wont do a bikefit james session. I can't handle being told i need a different size bike. 😂

[stephenjewitt]

I have been a cycling fan for years, but I love the technical stuff. I worked for zipp years ago, making tooling for wheels. In the late eighties and nineties, lots of new things came along.

One thing that i was thinking about the other day was the egg-shaped chainrings. Why did they disappear, and with more technological stuff, could we make them custom to each cyclist's requirements. They did relate a smoother stroke. My brother still has them on an old bike. I think they did relate to cadence, like the faster the pedal rate, the rounder they needed to be.

I was thinking of getting into building custom frames, but without all the fitment skills you have, i might get half-baked results.

I did get a feeling that the ladies were missing out on getting what they needed to get going like the should in the sport.

[alethearobinson]

Reminds me of my first bike fit (fit first, buy later)
After much conversation and measuring and fitting and a computer search. The fella looked over the tops of his glasses to tell me what bike would fit me. In one word.
"Custom"😅

[prep]

50W gain! holy smokes. Always fun watching someone who is at the top of their field doing what they do and explain it as they go

[swites]

880w's for someone that small is really good!! Man I just know my bike fit needs some work...

[cuebj]

As others will have mentioned, frame size was based on horizontal top tubes, predating Burrows and Giant's sloping top tubes. Centre of bottom bracket to centre of horizontal top tube or top of the lug so different brands did not equate exactly, but close to abut 1cm. Doesn't mean much now but it might be mildly interesting to try measuring CoBB to spirit level and comparing with stated frame size

[brucemackey]

The Bahamas needs this type content badly

[ciprian]

I might be in minority here but that position might generate more power but is not aero or fast, move the saddle all the way forward, rise it a little bit, reach will reduce by few cm's, ride with torso parallel to the TT bar and you will find that bike to be the perfect size, sometimes is not just the size but what type of bike .

[itsok]

James, you were made for YouTube. Not only are you an expert at your craft, your personality is delightful. Hoping your channel explodes. Also, thanks for sharing your craft with us. America has plenty of excellent fitters, but boring ass personalities.

[johnjcs]

Great video again James, I admire your ability to politely and professionally deliver the verdict that somebody's precious and very expensive bike is too big! I self-admimistered some arch support insoles to my cycling shoes within the last week or so after watching one of your recent videos, and I'm noticably more comfortable on longer rides as a result.

[cuebj]

I was recently asked by a friend about 2nd hand road bike. He assumed that, since we are similar height, we'd want similar sized bikes. But a good comparison is my son and me: same height, 180cm; my legs are nearly 40mm longer than mean for our height, his are about 40 cm shorter than mean, with, of course, similar differences to torso length. It's a huge difference and the discrepancy is behind him being a very good competitive swimmer and me just being a strong but slow swimmer whose legs tend to sink.
Since 1970s, I had a 22.5" Reynolds 531 frame = c 56cm for today's SystemSix, Roubaix, and Orbea urban bike. By chance, around 2001, I was riding from East Ham to Barkingside and saw a bike shop (prams etc as well) with a white Raleigh road bike in the window at a time when Raleigh had stopped making road bikes. It was all aluminium, including forks and weird: an incredibly long top tube compared with small frame. I asked for it to be held while I came back with the car, bought it, it might have been custom made for my son, as shown when I paid for him to have a bike fit (old days when formulae were from Richard's Bicycle Book and Lemond method). Later, I replaced the forks with carbon to make it comfortable enough to ride on anything that wasn't dead smooth. Can't remember the frame size but it was a lot less than 56cm! Fact is, he simply couldn't ride my bikes; I could ride his but very uncomfortable.
Same heights, very different bike frames and set-ups!

[deborahgarzon]

Another Great Fit James! With the power she produces, a custom bike is a no brainer for her if she can swing it. So much great knowledge and results instantly!

[ciprian]

love how the FTP went up 40 W, test took 20secs, moving the saddle back helped with more power when sprinting off the saddle, i can go On and On, time and money spent indoors on the fitting jig, a shorter TT will bring that front wheel into the Bottom Bracket

[derekhobbs]

I'd be interested in seeing some before after numbers in the description.

[danieltull]

I love the cadence of how you talk. I found myself mimicking it this week.

[edgerat]

Filling in the details are important to me. Dimensions of customers go a long way to help fill in those gaps. WHY is there no stock frame that would fit her?

[CatManDoSocial]

Such great stuff. Thanks for sharing these with us, James.

[peterch]

Smaller frame is usually specked with shorter crank arms, this could be a reason to go for smaller frame.