If your ds crank arm is at 12 o'clock where should the chain ring be adjusted to? Should the oval ends run about 2 & 8 o'clock say?

Hi Matt，My height is 182.5cm, myInner leg length is 88.5cm, and my arm span is 190cm. The seller here suggested that my size ML. Is that okay?

Love my Rotor Q rings. Plus front shifting on Di2 is hardly a downgrade. I just prefer feel, that is all, especially when climbing in saddle.

2014 called , it wants its ovals back.

Thanks Matt :) what was the tt saddle in your right hand at about 3:53 into this?

I like the good old phrase. Ask yourself if you could be going harder..there's only one correct answer...maybe.

So many female triathletes have double barrel surnames.

Now this is some sound advice, explaining the real important factors

Thanks Matt :) I just bought a Cadex frameset and was hoping to put a 56 on it, but the spec says 55 max. With a 1x could you go larger?

Great video. For a helmet like the Oakley Aro7, the bowling ball with no tail, is that even worse than a short tail helmet, or does the rounded shape give you more flexibility to move at the expense of pure speed? I really like it, I can see out of it, but the gap from my head to shoulders is less than ideal and I always reach for my long tail out of paranoia.

Hi, Peter is writing from Germany. VITS exists, VITS Swim Fitting, and stationary Indoor Training. Information available for Professionals and experts. Protection Agreements mandatory. VITS international Center of Competence in swimming Peter VITS Originator Concept Developer Concept Designer VITS quicker swim bike run quicker win 😎

Your page has the most useful information

I'm an exercise physiologist and I agree with you. Many seem to overcomplicate training with all sorts of complex scheduling and intervals, not to mention placing far too much focus on having the latest sensors and monitors. Facilitating training adaptation is generelly quite simple, with consistency of and variation in training being the key factors for improvement.

Hi Matt, what is your total height and what saddle height are you riding? I’ve been riding tcr’s for years and thinking about downsizing given the required guide spacer for the cables.

thank you for explaining the basics but very useful

Nice but I heard climb with 56t front? 😅 😅😅

Very interesting that, what size are you in cm by the way just curious with you saying 170mm feel best for you Regards

Like if you like, like 175 like or 170 like but like that might like be too like short like, like that's what I like think like.

May as well change the crank length because if your wanting to change the front end now with one piece cockpits and routing it’s realistically the only thing

I have gone a bit shorter over the years but I really dislike the “got go super short” mentality. If crank length didn’t affect power output we would just screwing the pedals into the end of the crank spindle.

Very good, interesting content considering I’m a 6-8hr a week person.

I got a mention ! 2015 seems like a lifetime ago, well done Keith 👍

KFD…The man’s a legend. An effing legend

4:30 How did you put the BTA mount in a nearly horizontal position? Cheers

What’s your height and inseam length? Looking to get my own trinity

If you are interested in viewer feedback: Seat is way too high, notice how she pedals comfortably when seated upright, this is the "longest" effective leg length which she needs to barely retain control through the pedal stroke. As she rotates the hips forward, first by holding bars or even further in the aero position the "effective" leg length shortens as the femur moves deeper into the hip. She loses control the bottom of the stroke, evidenced by hips rolling side to side as the body tries to get closer to BB, and she is clearly not comfortable as she lowers the upper body. I suggest lowering the seat 1" and spending some time there...this will help her get her torso lower, more aero...

Did you race for Bournemouth Jubilee.

Which one was faster for you?

That was horrible. You have a type of training, you have timing suggestions, you have cadence suggestions, but you have no teaching method at all… Force generation in the pedal stroke comes down to two muscle groups, glutes and quads. You could argue that other muscle groups contribute, which is why I built a plate loaded test rig. Glutes are the widest muscle group, allowing for more muscle fiber activation within a limited contraction - they generate torque. Quads by comparison are a longer muscle, and the connection point on the tibia is very close to the pivot, so at the foot they generate speed, but very little torque. Torque work = glute isolation. Here’s the problem: people learn how to walk and stand. Their most practiced motor skill is lifting their body weight. With the hips directly above the knee that skill set only involves the quads. This is your most practiced skill set, so it’s your go-to skill set. Put a rider on a bike, stop the pedal at 3:00, tell the rider to push down and watch what happens. They fire the quad and their hip moves up and back. The quad extends the lower leg from the knee, they are pushing mostly forward, the pedal is at 3:00, it’s only going down. The motor skill for walking and standing is all wrong here - you need a teaching method for a different motor skill set. To teach glute isolation I have to go against what you probably think is proper pedaling technique is. This is called critical thinking - humans suck at it… To isolate the glutes you need to do two things. 1) learn how to activate the muscle. 2) learn how to not activate the quad, which is the learned motor skill in place. Oddly, this involves being as lazy as possible. If you set up a rider on a bike with the pedal stopped at 3:00, and have them lean into their riding position with their hands behind them, body weight is transferred to the pedal via the glutes (there’s a whole lot about bike fit that I’m skipping here). The trick is to first teach the rider how to fall into the pedals, using the torso as a lever arm. This must be learned at super low intensity because effort will bring the quads into it. Now let’s talk about timing - it’s tighter than you think. You can plot foot travel as a function of hip extension. Given that you can find the offset angle at the crank. Efficiency is SIN(offset angle), we’re shooting for > 70%, so around 1:00 to 4:00. When you start looking at the best climbers you realize that there is a force impulse centered just above 3:00, which raises their efficiency - that’s the advanced class. The great thing about slowing down the activity is that you can see exactly what’s happening and correct problems in real time. So here’s what I don’t get. There are countless videos and guides on training and trainer set-up. Not one of them has a camera at the side of the rider so they can actually see what they are doing. I require my riders to do this, maybe 1 in 10 actually watch themselves - people suck at critical thinking. People also suck at engineering. Every video about pedal stroke claims there is a dead spot at the top/bottom of the stroke. Let’s go back to defining an efficient range by looking at extension at the joint relative to intersection of the circle. The quads can only push forward. Quads can’t generate torque, they can generate leg speed. This is not rocket science, each muscle group is going to have an efficient torque/cadence range. Once a rider has learned to isolate one muscle group at a time, and it’s autonomous, they can set an output using erg mode and find them most efficient cadence range for that muscle group (this is where I am now in training and testing). The ratio between the two cadences would suggest the aspect ratio of an oval chainring for time trials. I have not gotten to testing this yes, I’m worried that I will simply run into my cardiovascular limit without seeing any significant gains, but what I’ve learned over the years studying every aspect of cycling is that it’s never a linear function. Rant over.

No music please.

what handle bars do you have the .66 or the .44?

Still somewhat vague… Do the athletes ride with their coach?

Curious why yall chose to test the new SpeedMachine without BMC’s Triathalon water/storage compartment?

So what CdA did Clément manage to obtain ? :)

What was the watt saving with the new D2Z bottle mount?

Hey Matt, great video, that’s our new BMC Speedmachine. Let me know if you ever want to speak about it…

Hi Matt, I’m just wondering if the semi moulded bars ie D2Z or wattshop aero coach etc. What is the benefit of them, is there positional gains or mostly just aerodynamical?

sympa la vidéo avec Clément Mignon 😍

Looking forward to my aerofit with you next Tuesday….. got a brand new, unridden Scott Plasma TT for you to help me find a position for. Loved watching this.

But ask yourself... did it really need backing music?

can the drag2zero .66 be adapted for a cervelo P5 like the one that was in the background earlier in the vid?

Off to Spain next week!

Hi Matt. Yet more words of wisdom. I’ve been on a weeks trip almost every year since 1992 and now have become accustomed to organising villas bike hire and flights to Italy Spain and lately France in the autumn. It really does give you the focus needed to get in the zone for racing . It’s always a bit free form with us but there are the inevitable times when the TT brain kicks in and we have some good burn ups. Off to Antequera in Andelucia this year, a great area free of traffic and last year 30 C of heat…which was surprisingly bearable…have a great trip ….JQ

Great job matt 😀 look like a good position

I understand you wouldn't use the mid cleat position for road racing but is there any drawback from having the cleat back 1-2cm from the typical "spindle at ball of big toe"?

Matt helped me with exactly what he is talking about here. I was having calf and Achilles issues. I wasn't able to even ride my TT bike until I went to see him. Not only did it get me back riding, it got me riding pain free and in a good position that I can put power down in. I have said it before and il say it again- you will not find a better bike fitter than Matt bottrill.

Are there some cleat adapters you’d recommend?

"Promo SM" 🍀

I’ve been using mid cleat for a year and a half, I love it. More power, no more hot spots after long rides, and fresher legs off the bike. Just gotta watch out on the u turns, your toe can rub on the front wheel. 😂😂😂

Jodie is the nicest athlete you will ever meet. Always has time to chat.